libstrat: fix bugs/compiler warnings

subrepo:
  subdir:   "libraries"
  merged:   "89f8944f"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "89f8944f"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

.gitattributes

@@ -0,0 +1 @@
+config_templates/hbl_html/accessible-urls/accessible-urls.txt text eol=lf

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: ReSwitched Discord
+    url: https://discordapp.com/invite/DThbZ7z
+    about: Please ask questions here, instead of making GitHub issues.

.github/ISSUE_TEMPLATE/question.md

@@ -1,7 +0,0 @@
----
-name: Question
-about: Please ask questions in the ReSwitched discord, instead of making issues. 
---- 
-We would like to use GitHub to keep track of problems/feature requests.  
-If you have a question, please join the ReSwitched discord for help. 
-- Discord link: https://discordapp.com/invite/DThbZ7z 

.gitignore

@@ -31,6 +31,7 @@
 
 # Executables
 *.exe
+*.lz4
 *.out
 *.app
 *.i*86
@@ -64,6 +65,7 @@ dkms.conf
 # Distribution files
 *.tgz
 *.zip
+*.bz2
 
 # IDA binaries
 *.id0

.gitmodules

@@ -1,6 +0,0 @@
-[submodule "common/include/boost"]
-	path = common/include/boost
-	url = https://github.com/Atmosphere-NX/ext-boost.git
-[submodule "stratosphere/libstratosphere"]
-	path = stratosphere/libstratosphere
-	url = https://github.com/Atmosphere-NX/libstratosphere.git

Makefile

@@ -1,4 +1,4 @@
-TOPTARGETS := all clean dist
+TOPTARGETS := all clean dist-no-debug dist
 AMSBRANCH := $(shell git symbolic-ref --short HEAD)
 AMSHASH := $(shell git rev-parse --short HEAD)
 AMSREV := $(AMSBRANCH)-$(AMSHASH)
@@ -7,7 +7,7 @@ ifneq (, $(strip $(shell git status --porcelain 2>/dev/null)))
     AMSREV := $(AMSREV)-dirty
 endif
 
-COMPONENTS := fusee stratosphere exosphere thermosphere troposphere
+COMPONENTS := fusee stratosphere mesosphere exosphere thermosphere troposphere libraries
 
 all: $(COMPONENTS)
 
@@ -17,30 +17,36 @@ thermosphere:
 exosphere: thermosphere
 	$(MAKE) -C exosphere all
 
-stratosphere: exosphere
+stratosphere: exosphere libraries
 	$(MAKE) -C stratosphere all
 
+mesosphere: exosphere libraries
+	$(MAKE) -C mesosphere all
+
 troposphere: stratosphere
 	$(MAKE) -C troposphere all
 
 sept: exosphere
 	$(MAKE) -C sept all
 
-fusee: exosphere stratosphere sept
+fusee: exosphere mesosphere stratosphere sept
 	$(MAKE) -C $@ all
 
+libraries:
+	$(MAKE) -C libraries all
+
 clean:
 	$(MAKE) -C fusee clean
 	rm -rf out
 
-dist: all
-	$(eval MAJORVER = $(shell grep '\ATMOSPHERE_RELEASE_VERSION_MAJOR\b' common/include/atmosphere/version.h \
+dist-no-debug: all
+	$(eval MAJORVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MAJOR\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
 		| tr -s [:blank:] \
 		| cut -d' ' -f3))
-	$(eval MINORVER = $(shell grep '\ATMOSPHERE_RELEASE_VERSION_MINOR\b' common/include/atmosphere/version.h \
+	$(eval MINORVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MINOR\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
 		| tr -s [:blank:] \
 		| cut -d' ' -f3))
-	$(eval MICROVER = $(shell grep '\ATMOSPHERE_RELEASE_VERSION_MICRO\b' common/include/atmosphere/version.h \
+	$(eval MICROVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MICRO\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
 		| tr -s [:blank:] \
 		| cut -d' ' -f3))
 	$(eval AMSVER = $(MAJORVER).$(MINORVER).$(MICROVER)-$(AMSREV))
@@ -50,33 +56,94 @@ dist: all
 	mkdir atmosphere-$(AMSVER)/atmosphere
 	mkdir atmosphere-$(AMSVER)/sept
 	mkdir atmosphere-$(AMSVER)/switch
-	mkdir -p atmosphere-$(AMSVER)/atmosphere/titles/0100000000000036
-	mkdir -p atmosphere-$(AMSVER)/atmosphere/titles/0100000000000034
-	mkdir -p atmosphere-$(AMSVER)/atmosphere/titles/0100000000000032
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000008
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/010000000000000D
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/010000000000002B
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000034
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000036
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/010000000000003C
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/fatal_errors
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/config_templates
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/config
 	cp fusee/fusee-primary/fusee-primary.bin atmosphere-$(AMSVER)/atmosphere/reboot_payload.bin
-	mkdir -p atmosphere-$(AMSVER)/atmosphere/titles/010000000000000D
+	cp fusee/fusee-mtc/fusee-mtc.bin atmosphere-$(AMSVER)/atmosphere/fusee-mtc.bin
 	cp fusee/fusee-secondary/fusee-secondary.bin atmosphere-$(AMSVER)/atmosphere/fusee-secondary.bin
 	cp fusee/fusee-secondary/fusee-secondary.bin atmosphere-$(AMSVER)/sept/payload.bin
 	cp sept/sept-primary/sept-primary.bin atmosphere-$(AMSVER)/sept/sept-primary.bin
 	cp sept/sept-secondary/sept-secondary.bin atmosphere-$(AMSVER)/sept/sept-secondary.bin
-	cp sept/sept-secondary/sept-secondary.enc atmosphere-$(AMSVER)/sept/sept-secondary.enc
-	cp common/defaults/BCT.ini atmosphere-$(AMSVER)/atmosphere/BCT.ini
-	cp common/defaults/loader.ini atmosphere-$(AMSVER)/atmosphere/loader.ini
-	cp common/defaults/system_settings.ini atmosphere-$(AMSVER)/atmosphere/system_settings.ini
-	cp -r common/defaults/kip_patches atmosphere-$(AMSVER)/atmosphere/kip_patches
-	cp -r common/defaults/hbl_html atmosphere-$(AMSVER)/atmosphere/hbl_html
-	cp stratosphere/creport/creport.nsp atmosphere-$(AMSVER)/atmosphere/titles/0100000000000036/exefs.nsp
-	cp stratosphere/fatal/fatal.nsp atmosphere-$(AMSVER)/atmosphere/titles/0100000000000034/exefs.nsp
-	cp stratosphere/eclct.stub/eclct.stub.nsp atmosphere-$(AMSVER)/atmosphere/titles/0100000000000032/exefs.nsp
+	cp sept/sept-secondary/sept-secondary_00.enc atmosphere-$(AMSVER)/sept/sept-secondary_00.enc
+	cp sept/sept-secondary/sept-secondary_01.enc atmosphere-$(AMSVER)/sept/sept-secondary_01.enc
+	cp sept/sept-secondary/sept-secondary_dev_00.enc atmosphere-$(AMSVER)/sept/sept-secondary_dev_00.enc
+	cp sept/sept-secondary/sept-secondary_dev_01.enc atmosphere-$(AMSVER)/sept/sept-secondary_dev_01.enc
+	cp config_templates/BCT.ini atmosphere-$(AMSVER)/atmosphere/config/BCT.ini
+	cp config_templates/override_config.ini atmosphere-$(AMSVER)/atmosphere/config_templates/override_config.ini
+	cp config_templates/system_settings.ini atmosphere-$(AMSVER)/atmosphere/config_templates/system_settings.ini
+	cp config_templates/exosphere.ini atmosphere-$(AMSVER)/atmosphere/config_templates/exosphere.ini
+	cp -r config_templates/kip_patches atmosphere-$(AMSVER)/atmosphere/kip_patches
+	cp -r config_templates/hbl_html atmosphere-$(AMSVER)/atmosphere/hbl_html
+	cp stratosphere/boot2/boot2.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000008/exefs.nsp
+	cp stratosphere/dmnt/dmnt.nsp atmosphere-$(AMSVER)/atmosphere/contents/010000000000000D/exefs.nsp
+	cp stratosphere/erpt/erpt.nsp atmosphere-$(AMSVER)/atmosphere/contents/010000000000002B/exefs.nsp
+	cp stratosphere/eclct.stub/eclct.stub.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032/exefs.nsp
+	cp stratosphere/fatal/fatal.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000034/exefs.nsp
+	cp stratosphere/creport/creport.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000036/exefs.nsp
+	cp stratosphere/ro/ro.nsp atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037/exefs.nsp
+	cp stratosphere/jpegdec/jpegdec.nsp atmosphere-$(AMSVER)/atmosphere/contents/010000000000003C/exefs.nsp
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032/flags
+	touch atmosphere-$(AMSVER)/atmosphere/contents/0100000000000032/flags/boot2.flag
+	mkdir -p atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037/flags
+	touch atmosphere-$(AMSVER)/atmosphere/contents/0100000000000037/flags/boot2.flag
 	cp troposphere/reboot_to_payload/reboot_to_payload.nro atmosphere-$(AMSVER)/switch/reboot_to_payload.nro
-	mkdir -p atmosphere-$(AMSVER)/atmosphere/titles/0100000000000032/flags
-	touch atmosphere-$(AMSVER)/atmosphere/titles/0100000000000032/flags/boot2.flag
-	cp stratosphere/dmnt/dmnt.nsp atmosphere-$(AMSVER)/atmosphere/titles/010000000000000D/exefs.nsp
 	cd atmosphere-$(AMSVER); zip -r ../atmosphere-$(AMSVER).zip ./*; cd ../;
 	rm -r atmosphere-$(AMSVER)
 	mkdir out
 	mv atmosphere-$(AMSVER).zip out/atmosphere-$(AMSVER).zip
 	cp fusee/fusee-primary/fusee-primary.bin out/fusee-primary.bin
 
+dist: dist-no-debug
+	$(eval MAJORVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MAJOR\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
+		| tr -s [:blank:] \
+		| cut -d' ' -f3))
+	$(eval MINORVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MINOR\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
+		| tr -s [:blank:] \
+		| cut -d' ' -f3))
+	$(eval MICROVER = $(shell grep 'define ATMOSPHERE_RELEASE_VERSION_MICRO\b' libraries/libvapours/include/vapours/ams/ams_api_version.h \
+		| tr -s [:blank:] \
+		| cut -d' ' -f3))
+	$(eval AMSVER = $(MAJORVER).$(MINORVER).$(MICROVER)-$(AMSREV))
+	rm -rf atmosphere-$(AMSVER)-debug
+	mkdir atmosphere-$(AMSVER)-debug
+	cp fusee/fusee-primary/fusee-primary.elf atmosphere-$(AMSVER)-debug/fusee-primary.elf
+	cp fusee/fusee-mtc/fusee-mtc.elf atmosphere-$(AMSVER)-debug/fusee-mtc.elf
+	cp fusee/fusee-secondary/fusee-secondary.elf atmosphere-$(AMSVER)-debug/fusee-secondary.elf
+	cp sept/sept-primary/sept-primary.elf atmosphere-$(AMSVER)-debug/sept-primary.elf
+	cp sept/sept-secondary/sept-secondary.elf atmosphere-$(AMSVER)-debug/sept-secondary.elf
+	cp sept/sept-secondary/key_derivation/key_derivation.elf atmosphere-$(AMSVER)-debug/sept-secondary-key-derivation.elf
+	cp exosphere/loader_stub/loader_stub.elf atmosphere-$(AMSVER)-debug/exosphere-loader-stub.elf
+	cp exosphere/program/program.elf atmosphere-$(AMSVER)-debug/exosphere-program.elf
+	cp exosphere/warmboot/warmboot.elf atmosphere-$(AMSVER)-debug/exosphere-warmboot.elf
+	cp exosphere/program/sc7fw/sc7fw.elf atmosphere-$(AMSVER)-debug/exosphere-sc7fw.elf
+	cp exosphere/program/rebootstub/rebootstub.elf atmosphere-$(AMSVER)-debug/exosphere-rebootstub.elf
+	cp mesosphere/kernel_ldr/kernel_ldr.elf atmosphere-$(AMSVER)-debug/kernel_ldr.elf
+	cp stratosphere/ams_mitm/ams_mitm.elf atmosphere-$(AMSVER)-debug/ams_mitm.elf
+	cp stratosphere/boot/boot.elf atmosphere-$(AMSVER)-debug/boot.elf
+	cp stratosphere/boot2/boot2.elf atmosphere-$(AMSVER)-debug/boot2.elf
+	cp stratosphere/creport/creport.elf atmosphere-$(AMSVER)-debug/creport.elf
+	cp stratosphere/dmnt/dmnt.elf atmosphere-$(AMSVER)-debug/dmnt.elf
+	cp stratosphere/eclct.stub/eclct.stub.elf atmosphere-$(AMSVER)-debug/eclct.stub.elf
+	cp stratosphere/fatal/fatal.elf atmosphere-$(AMSVER)-debug/fatal.elf
+	cp stratosphere/loader/loader.elf atmosphere-$(AMSVER)-debug/loader.elf
+	cp stratosphere/pm/pm.elf atmosphere-$(AMSVER)-debug/pm.elf
+	cp stratosphere/ro/ro.elf atmosphere-$(AMSVER)-debug/ro.elf
+	cp stratosphere/sm/sm.elf atmosphere-$(AMSVER)-debug/sm.elf
+	cp stratosphere/spl/spl.elf atmosphere-$(AMSVER)-debug/spl.elf
+	cp stratosphere/erpt/erpt.elf atmosphere-$(AMSVER)-debug/erpt.elf
+	cp stratosphere/jpegdec/jpegdec.elf atmosphere-$(AMSVER)-debug/jpegdec.elf
+	cd atmosphere-$(AMSVER)-debug; zip -r ../atmosphere-$(AMSVER)-debug.zip ./*; cd ../;
+	rm -r atmosphere-$(AMSVER)-debug
+	mv atmosphere-$(AMSVER)-debug.zip out/atmosphere-$(AMSVER)-debug.zip
+
 
 .PHONY: $(TOPTARGETS) $(COMPONENTS)

README.md

@@ -19,6 +19,17 @@ Atmosphère consists of multiple components, each of which replaces/modifies a d
 * Stratosphère: Custom Sysmodule(s), both Rosalina style to extend the kernel/provide new features, and of the loader reimplementation style to hook important system actions
 * Troposphère: Application-level Horizon OS patches, used to implement desirable CFW features
 
+Licensing
+=====
+
+This software is licensed under the terms of the GPLv2, with exemptions for specific projects noted below.
+
+You can find a copy of the license in the [LICENSE file](LICENSE).
+
+Exemptions:
+* The [yuzu Nintendo Switch emulator](https://github.com/yuzu-emu/yuzu) and the [Ryujinx Team and Contributors](https://github.com/orgs/Ryujinx) are exempt from GPLv2 licensing. They are permitted, each at their individual discretion, to instead license any source code authored for the Atmosphère project as either GPLv2 or later or the [MIT license](https://github.com/Atmosphere-NX/Atmosphere/blob/master/docs/licensing_exemptions/MIT_LICENSE). In doing so, they may alter, supplement, or entirely remove the copyright notice for each file they choose to relicense. Neither the Atmosphère project nor its individual contributors shall assert their moral rights against any of the aforementioned projects.
+* [Nintendo](https://github.com/Nintendo) is exempt from GPLv2 licensing and may (at its option) instead license any source code authored for the Atmosphère project under the Zero-Clause BSD license.
+
 Credits
 =====
 
@@ -32,6 +43,7 @@ In no particular order, we credit the following for their invaluable contributio
 * __Marcus Geelnard__ for the [bcl-1.2.0](https://sourceforge.net/projects/bcl/files/bcl/bcl-1.2.0) library.
 * __naehrwert__ and __st4rk__ for the original [hekate](https://github.com/nwert/hekate) project and its hwinit code base.
 * __CTCaer__ for the continued [hekate](https://github.com/CTCaer/hekate) project's fork and the [minerva_tc](https://github.com/CTCaer/minerva_tc) project.
+* __m4xw__ for development of the [emuMMC](https://github.com/m4xw/emummc) project.
 * __Riley__ for suggesting "Atmosphere" as a Horizon OS reimplementation+customization project name.
 * __hedgeberg__ for research and hardware testing.
 * __lioncash__ for code cleanup and general improvements.

common/defaults/loader.ini

@@ -1,9 +0,0 @@
-[hbl_config]
-title_id=010000000000100D
-override_any_app=true
-path=atmosphere/hbl.nsp
-override_key=R
-
-[default_config]
-override_key=!L
-cheat_enable_key=!L

common/defaults/system_settings.ini

@@ -1,24 +0,0 @@
-; Disable uploading error reports to Nintendo
-[eupld]
-upload_enabled = u8!0x0
-; Enable USB 3.0 superspeed for homebrew
-[usb]
-usb30_force_enabled = u8!0x0
-; Atmosphere custom settings
-[atmosphere]
-; Make the power menu's "reboot" button reboot to payload.
-; Set to "normal" for normal reboot, "rcm" for rcm reboot.
-power_menu_reboot_function = str!payload
-; Controls whether dmnt cheats should be toggled on or off by 
-; default. 1 = toggled on by default, 0 = toggled off by default.
-dmnt_cheats_enabled_by_default = u8!0x1
-; Controls whether dmnt should always save cheat toggle state
-; for restoration on new game launch. 1 = always save toggles,
-; 0 = only save toggles if toggle file exists.
-dmnt_always_save_cheat_toggles = u8!0x0
-; Controls whether fs.mitm should redirect save files
-; to directories on the sd card.
-; 0 = Do not redirect, 1 = Redirect.
-; NOTE: EXPERIMENTAL
-; If you do not know what you are doing, do not touch this yet.
-fsmitm_redirect_saves_to_sd = u8!0x0

common/include/atmosphere/target_fw.h

@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2018-2019 Atmosphère-NX
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
- 
-#ifndef ATMOSPHERE_TARGET_FIRMWARE_H
-#define ATMOSPHERE_TARGET_FIRMWARE_H
-
-#define ATMOSPHERE_TARGET_FIRMWARE_100 1
-#define ATMOSPHERE_TARGET_FIRMWARE_200 2
-#define ATMOSPHERE_TARGET_FIRMWARE_300 3
-#define ATMOSPHERE_TARGET_FIRMWARE_400 4
-#define ATMOSPHERE_TARGET_FIRMWARE_500 5
-#define ATMOSPHERE_TARGET_FIRMWARE_600 6
-#define ATMOSPHERE_TARGET_FIRMWARE_620 7
-#define ATMOSPHERE_TARGET_FIRMWARE_700 8
-
-#define ATMOSPHERE_TARGET_FIRMWARE_CURRENT ATMOSPHERE_TARGET_FIRMWARE_700
-
-#define ATMOSPHERE_TARGET_FIRMWARE_MIN ATMOSPHERE_TARGET_FIRMWARE_100
-#define ATMOSPHERE_TARGET_FIRMWARE_MAX ATMOSPHERE_TARGET_FIRMWARE_700
-
-/* TODO: What should this be, for release? */
-#define ATMOSPHERE_TARGET_FIRMWARE_DEFAULT_FOR_DEBUG ATMOSPHERE_TARGET_FIRMWARE_CURRENT
-
-#endif

config_templates/BCT.ini

@@ -1,14 +1,12 @@
 BCT0
 [stage1]
 stage2_path = atmosphere/fusee-secondary.bin
+stage2_mtc_path = atmosphere/fusee-mtc.bin
 stage2_addr = 0xF0000000
 stage2_entrypoint = 0xF0000000
 
-[exosphere]
-; Note: Disabling debugmode will cause parts of ams.tma to not work, in the future.
-debugmode = 1 
-debugmode_user = 0
-
 [stratosphere]
 ; To force-enable nogc, add nogc = 1
 ; To force-disable nogc, add nogc = 0
+
+; To opt in to using Atmosphere's NCM reimplementation, add enable_ncm = 1

config_templates/exosphere.ini

@@ -0,0 +1,45 @@
+# Key: debugmode, default: 1.
+#  Desc: Controls whether kernel is debug mode.
+#   Disabling this may break Atmosphere's debugger in a future release.
+
+# Key: debugmode_user, default: 0.
+#  Desc: Controls whether userland is debug mode.
+
+# Key: disable_user_exception_handlers, default: 0.
+#  Desc: Controls whether user exception handlers are executed on error.
+#  NOTE: This will cause atmosphere to not fail gracefully.
+#   Support may not be provided to users tho disable these.
+#   If you do not know what you are doing, leave them on.
+
+# Key: enable_user_pmu_access, default: 0.
+#  Desc: Controls whether userland has access to the PMU registers.
+#  NOTE: It is unknown what effects this has on official code.
+
+# Key: blank_prodinfo_sysmmc, default: 0.
+#  Desc: Controls whether PRODINFO should be blanked in sysmmc.
+#   This will cause the system to see dummied out keys and
+#   serial number information.
+#  NOTE: This is not known to be safe, as data may be
+#   cached elsewhere in the system. Usage is not encouraged.
+
+# Key: blank_prodinfo_emummc, default: 0.
+#  Desc: Controls whether PRODINFO should be blanked in emummc.
+#  NOTE: This is not known to be safe, as data may be
+#   cached elsewhere in the system. Usage is not encouraged.
+
+# Key: allow_writing_to_cal_sysmmc, default: 0.
+#  Desc: Controls whether PRODINFO can be written by homebrew in sysmmc.
+#  NOTE: Usage of this setting is strongly discouraged without
+#    a safe backup elsewhere. Turning this on will also cause Atmosphere
+#    to ensure a safe backup of calibration data is stored in unused
+#    mmc space, encrypted to prevent detection. This backup can be used
+#    to prevent unrecoverable edits in emergencies.
+
+[exosphere]
+debugmode=1
+debugmode_user=0
+disable_user_exception_handlers=0
+enable_user_pmu_access=0
+blank_prodinfo_sysmmc=0
+blank_prodinfo_emummc=0
+allow_writing_to_cal_sysmmc=0

config_templates/override_config.ini

@@ -0,0 +1,19 @@
+[hbl_config]
+; Program Specific Config
+; Up to 8 program-specific configurations can be set.
+; These use `program_id_#` and `override_key_#`
+; where # is in range [0,7].
+; program_id_0=010000000000100D
+; override_key_0=!R
+
+; Any Application Config
+; Note that this will only apply to program IDs that
+; are both applications and not specified above
+; by a program specific config.
+; override_any_app=true
+; override_any_app_key=R
+; path=atmosphere/hbl.nsp
+
+[default_config]
+; override_key=!L
+; cheat_enable_key=!L

config_templates/system_settings.ini

@@ -0,0 +1,49 @@
+; Disable uploading error reports to Nintendo
+[eupld]
+; upload_enabled = u8!0x0
+; Control whether RO should ease its validation of NROs.
+; (note: this is normally not necessary, and ips patches can be used.)
+[ro]
+; ease_nro_restriction = u8!0x1
+; Atmosphere custom settings
+[atmosphere]
+; Reboot from fatal automatically after some number of milliseconds.
+; If field is not present or 0, fatal will wait indefinitely for user input.
+; fatal_auto_reboot_interval = u64!0x0
+; Make the power menu's "reboot" button reboot to payload.
+; Set to "normal" for normal reboot, "rcm" for rcm reboot.
+; power_menu_reboot_function = str!payload
+; Controls whether dmnt cheats should be toggled on or off by
+; default. 1 = toggled on by default, 0 = toggled off by default.
+; dmnt_cheats_enabled_by_default = u8!0x1
+; Controls whether dmnt should always save cheat toggle state
+; for restoration on new game launch. 1 = always save toggles,
+; 0 = only save toggles if toggle file exists.
+; dmnt_always_save_cheat_toggles = u8!0x0
+; Enable writing to BIS partitions for HBL.
+; This is probably undesirable for normal usage.
+; enable_hbl_bis_write = u8!0x0
+; Enable reading the CAL0 partition for HBL.
+; This is probably undesirable for normal usage.
+; enable_hbl_cal_read = u8!0x0
+; Controls whether fs.mitm should redirect save files
+; to directories on the sd card.
+; 0 = Do not redirect, 1 = Redirect.
+; NOTE: EXPERIMENTAL
+; If you do not know what you are doing, do not touch this yet.
+; fsmitm_redirect_saves_to_sd = u8!0x0
+; Controls whether to enable the deprecated hid mitm
+; to fix compatibility with old homebrew.
+; 0 = Do not enable, 1 = Enable.
+; Please note this setting may be removed in a
+; future release of Atmosphere.
+; enable_deprecated_hid_mitm = u8!0x0
+[hbloader]
+; Controls the size of the homebrew heap when running as applet.
+; If set to zero, all available applet memory is used as heap.
+; The default is zero.
+; applet_heap_size = u64!0x0
+; Controls the amount of memory to reserve when running as applet
+; for usage by other applets. This setting has no effect if
+; applet_heap_size is non-zero. The default is 0x8600000.
+; applet_heap_reservation_size = u64!0x8600000

docs/building.md

@@ -1,8 +1,27 @@
 # Building Atmosphère
-The process for building Atmosphère is similar to building Fusée Gelée payloads and other Switch apps.
+Building Atmosphère is a very straightforward process that relies almost exclusively on tools provided by the [devkitPro](https://devkitpro.org) organization.
 
-In order to build Atmosphère you must have devkitARM and devkitA64 installed on your computer. You can find instructions on how to install and setup devkitARM and devkitA64 on various OSes [here](https://devkitpro.org/wiki/Getting_Started). You'll need to install the following packages via (dkp-)pacman: switch-dev switch-freetype devkitARM devkitarm-rules
+## Dependencies
++ [devkitA64](https://devkitpro.org)
++ [devkitARM](https://devkitpro.org)
++ [Python 2 or 3](https://www.python.org) (optional)
++ [PyCryptodome](https://pypi.org/project/pycryptodome) (optional)
 
-sept requires you have python installed with the pycrypto and pycryptodome PyPi packages (pip install pycrypto pycryptodome). You may also want to install the zip package from your package manager of choice to support the `make dist` recipe.
+## Instructions
+1. Follow the guide located [here](https://devkitpro.org/wiki/Getting_Started) to install and configure all the tools necessary for the build process. 
 
-Once you have finished installing the devkitPro-provided toolchain/libraries, python, and the dependencies, simply clone the Atmosphère repo (clone with the -r flag), change your directory to it and run `make`.
+2. Install the following packages via (dkp-)pacman:
+    + `switch-dev`
+    + `switch-libjpeg-turbo`
+    + `devkitARM`
+    + `devkitarm-rules`
+
+3. (Optional) In order to build [sept](components/sept.md) the pycryptodome PyPi package is required, which can be installed by running `pip install pycryptodome` under the installed Python environment of your choice or by installing the complete zip package to support the `make dist` recipe. This is an optional step included for advanced users who have the ability to provide the necessary encryption/signing keys themselves.
+
+4. It is, instead, possible to build [sept](components/sept.md) by providing previously encrypted/signed binaries distributed by official Atmosphère release packages. In order to do so, export the following variables in your current environment:
+    + `SEPT_00_ENC_PATH` (must point to the `sept-secondary_00.enc` file)
+    + `SEPT_01_ENC_PATH` (must point to the `sept-secondary_01.enc` file)
+    + `SEPT_DEV_00_ENC_PATH` (must point to the `sept-secondary_dev_00.enc` file)
+    + `SEPT_DEV_01_ENC_PATH` (must point to the `sept-secondary_dev_01.enc` file)
+
+5. Finally, clone the Atmosphère repository and run `make` under its root directory.

docs/changelog.md

@@ -1,4 +1,442 @@
 # Changelog
+## 0.13.0
++ `exosphère`, atmosphère's secure monitor re-implementation, was completely re-written.
+  + `exosphère` was the first component authored for the project in early 2018. It is written in C, and in a style very different from the rest of atmosphère's code.
+    + This has made the codebase difficult to maintain as time has gone on.
+  + `exosphère` was also written to conform to constraints and assumptions that simply no longer apply when cfw is not launched from the web browser, and when warmboothax is possible.
+  + Even beyond these issues, `exosphère` used all but 1KB of the 64KB of space available to it. This was a problem for a few reasons:
+    + Each new system update added requires additional space to support (to add new keys and reflect various changes); 10.0.0 support used up 3 of the 4KB we had left.
+    + atmosphère will want to have software support for mariko hardware, and this is not possible to fit in 1 KB.
+  + The `exosphère` rewrite (which was codenamed `exosphère2` during development) solves these problems.
+  + The new codebase is C++20 written in atmosphère's style.
+    + This solves the maintainability problem, and should make understanding how the secure monitor works *much* easier for those interested in using the code as a reference implementation.
+  + In addition, the new implementation currently uses ~59.5 of the 64KB available.
+    + Several potential code changes are planned that can save/grant access to an additional ~2-3 KB if needed.
+      + Unlike the first codebase, the new `exosphère` actually already has space allocated for future keys/etc. It is currently expected that the reserved space will never be required.
+    + The previous implementation chose not to implement a number of "unimportant" secure monitor functions due to space concerns. The new code has enough breathing room that it can implement them without worries. :)
+  + Finally, the groundwork for mariko support has been laid -- there are only a few minor changes needed for the new secure monitor implementation to work on both erista and mariko hardware.
+    + **Please note**: `exosphère` is only one of many components, and many more need changes to support running on mariko hardware.
+      + Software-side support for executing on mariko hardware is expected some time during Summer 2020, though it should also be noted that this is not a hard deadline.
+  + **Please note**: The new `exosphère` binary is not abi-compatible with the old one. Users who boot using hekate should wait for it to update before running 0.13.0 (or boot fusee-primary via hekate).
++ atmosphère's api for target firmware was changed. All minor/micro system versions are now recognized, instead of only major versions.
+  + This was required in order to support firmware version 5.1.0, which made breaking changes to certain IPC APIs that caused atmosphère 0.12.0 to abort.
+  + **Please note**: this is (unavoidably) a breaking change. System modules using atmosphere-libs will need to update to understand what firmware version they are running.
++ `emummc` was updated to include the new changes.
+  + `emummc` now uses an updated/improved/faster SDMMC driver.
+  + File-based emummc is now almost as fast as raw partition-based emummc.
++ For those interested in atmosphère's future development plans, the project's [roadmap](https://github.com/Atmosphere-NX/Atmosphere/blob/f68d33b70aed8954cc2c539e5934bcaf37ba51da/docs/roadmap.md) was updated.
++ General system stability improvements to enhance the user's experience.
+
+## 0.12.0
++ Configuration for exosphere was moved to sd:/exosphere.ini.
+  + This is to facilitate BIS protection changes described below.
+  + Hopefully having this outside of the Atmosphere folder will prevent accidental deletion, since this now contains important settings.
++ Atmosphere's bis protection policy for the PRODINFO partition was substantially reworked.
+  + Support was added for "automatically" performing a "blanking" operation to PRODINFO without actually modifying NAND.
+    + This is equivalent to using the "incognito" homebrew tool, but NAND is never actually modified.
+    + This can be turned on in sysmmc by setting `blank_prodinfo_sysmmc=1` in exosphere.ini, and in emummc by setting `blank_prodinfo_emummc=1` in exosphere.ini.
+    + **Please note**: This is not known to be safe. There is a lack of research on whether the information blanked out is cached elsewhere in the system.
+      + Usage of this option is not encouraged for this reason.
+  + Support was added for writing to the PRODINFO partition, if a verified encrypted backup has been made.
+    + PRODINFO is the only system data that cannot be recovered if not backed up, and thus Atmosphere has backed it up to the SD card on boot for some time now.
+    + Users who wish to modify their calibration data may now do so unconditionally in emummc, and in sysmmc if `allow_writing_to_cal_sysmmc=1` is set in exosphere.ini.
+      + **Please note**: This is heavily discouraged, and the typical user will almost never want to do this.
+      + Setting this option will cause Atmosphere to attempt to verify (or create) an encrypted backup of the PRODINFO data to an unused region in the partition.
+        + The backup is encrypted with per-console keys that Atmosphere's developers do not know.
+      + If the backup is not verified or created, writes will not work. Users who have corrupted their PRODINFO in the past are encouraged to flash a good backup to allow use of this setting.
+      + Reads and writes to the region used for the securely encrypted backup will appear to succeed, but will actually read/write from a buffer filled with garbage in memory.
+  + Support will be investigated in the future for supporting booting with fully blanked calibration.
+    + This is desirable to allow boot to succeed for users who lost their calibration data due to bricking homebrew before bis protection was implemented.
++ `creport` has been updated to use the new screenshot APIs added in 9.0.0+.
+  + On 10.0.0+, if a crash occurs in an application (not applet or sysmodule) a screenshot will now be automatically saved to the SD card.
+  + If the user applies a patch to vi on 9.0.0 (as the command this uses was previously for dev-units only), this can also work on 9.0.0.
++ The new sysmodule `pgl` added in 10.0.0 was reimplemented.
+  + `pgl` ("Program Launcher", probably) is responsible for managing launched user-processes, previously this was handled by NS.
+  + The most exciting thing about pgl is that it finally provides an API for multiple clients to subscribe to process events.
+  + Using these new APIs, system modules / other homebrew can subscribe to be notified whenever a process event occurs.
+    + This means action can be taken on process launch, process exit, process crash, etc.
+  + A slight concern with Nintendo's implementation is that each subscriber object uses 0x448 bytes of memory, and N only reserves 8KB for all allocations in pgl.
+  + Atmosphere's implementation uses a 32KB heap, which should not be exhaustible.
+  + Atmosphere's implementation has a total memory footprint roughly 0x28000 bytes smaller than Nintendo's.
++ A reimplementation was added for the `jpegdec` system module (thanks @HookedBehemoth)!
+  + This allows two sessions instead of 1, so homebrew can now use it for software jpeg decoding in addition to the OS itself.
+  + As usual the implementation has a very slightly smaller memory footprint than Nintendo's.
++ `dmnt`'s Cheat VM was extended to add three new opcodes.
+  + The first new opcode, "ReadWriteStaticRegister", allows for cheats to read from a bank of 128 read-only static registers, and write to a bank of 128 write-only static registers.
+    + This can be used in concert with new IPC commands that allow a cheat manager to read or write the value of these static registers to have "dynamic" cheats.
+      + As an example, a cheat manager could write a value to a static register that a cheat to control how many of an item to give in a game.
+      + As another example, a cheat manager could read a static register that a cheat writes to to learn how many items a player has.
++ The second and third opcodes are a pair, "PauseProcess" and "ResumeProcess".
+  + Executing pause process in a cheat will pause the game (it will be frozen) until a resume process opcode is used.
+    + These are also available over IPC, for cheat managers or system modules that want to pause or resume the attached cheat process.
+  + This allows a cheat to know that the game won't modify or access data the cheat is accessing.
+    + For example, this can be used to prevent Pokemon from seeing a pokemon a cheat is in the middle of injecting and turning it into a bad egg.
++ A bug was fixed that would cause the console to crash when connected to Wi-Fi on versions between 3.0.0 and 4.1.0 inclusive.
++ A bug was fixed that could cause boot to fail sporadically due to cache/tlb mismanagement when doing physical ASLR of the kernel.
++ A number of other minor issues were addressed (and more of Atmosphere was updated to reflect other changes in 10.0.x).
++ General system stability improvements to enhance the user's experience.
+
+## 0.11.1
++ A bug was fixed that could cause owls to flicker under certain circumstances.
+  + For those interested in technical details, in 10.0.0 kernelldr/kernel no longer set cpuactlr_el1, assuming that it was set correctly by the secure monitor.
+  + However, exosphere did not set cpuactlr_el1. This meant that the register held the reset value going into boot.
+  + This caused a variety of highly erratic symptoms, including causing basically any game to crash seemingly randomly.
++ A number of other major inaccuracies in exosphere were corrected.
++ General system stability improvements to enhance the user's experience.
+
+## 0.11.0
++ Support was added for 10.0.0.
+  + Exosphere has been updated to reflect the new key import semantics in 10.0.0.
+  + kernel_ldr now implements physical ASLR for the kernel's backing pages.
+  + Loader, NCM, and PM have been updated to reflect the changes Nintendo made in 10.0.0.
+  + Creport was updated to use the new `pgl` service to terminate processes instead of `ns:dev`.
++ A reimplementation of the `erpt` (error reports) system module was added.
+  + In previous versions of Atmosphere, a majority of error reports were prevented via a combination of custom creport, fatal, and stubbed eclct.
+  + However, error reports were still generated via some system actions.
+    + Most notably, any time the error applet appeared, an error report was generated.
+    + By default, atmosphere disabled the *uploading* of error reports, but going online in OFW after an error report occurred in Atmosphere could lead to undesirable telemetry.
+  + Atmosphere's `erpt` reimplementation allows the system to interact with existing error reports as expected.
+  + However, all new error reports are instead saved to the sd card (`/atmosphere/erpt_reports`), and are not committed to the system savegame.
+    + Users curious about what kind of telemetry is being prevented can view the reports as they're generated in there.
+    + Reports are saved as msgpack (as this is what Nintendo uses).
+  + Please note, not all telemetry is disabled. Play reports and System reports will continue to function unmodified.
+  + With atmosphere's `erpt` implementation, homebrew can now use the native error applet to display errors without worrying about generating undesirable telemetry.
++ libstratosphere and libvapours received a number of improvements.
+  + With thanks to @Adubbz for his work, the NCM namespace now has client code.
+    + This lays the groundwork for first-class system update/downgrade homebrew support in the near future.
+  + In particular, code implementing the os namespace is significantly more accurate.
+  + In addition, Nintendo's allocators were implemented, allowing for identical memory efficiency versus Nintendo's implementations.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.5
++ Changes were made to the way fs.mitm builds images when providing a layeredfs romfs.
+  + Building romfs metadata previously had a memory cost of about ~4-5x the file table size.
+  + This caused games that have particularly enormous file metadata tables (> 4 MB) to exhaust fs.mitm's 16 MB memory pool.
+  + The code that creates romfs images was thus changed to be significantly more memory efficient, again.
+  + Memory requirements have been lowered from ~4x file table size to ~2x file table size + 0.5 MB.
+  + There is a slight speed penalty to this, but testing on Football Manager 2020 only took an extra ~1.5 seconds for the game to boot with many modded files.
+    + This shouldn't be noticeable thanks to the async changes made in 0.10.2.
+  + If you encounter a game that exhausts ams.mitm's memory (crashing it) when loading layeredfs mods, please contact SciresM.
+    + Romfs building can be made even more memory efficient, but unless games show up with even more absurdly huge file tables it seems not worth the speed trade-off.
++ A bug was fixed that caused Atmosphere's fatal error context to not dump TLS for certain processes.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.4
++ With major thanks to @Adubbz for his work, the NCM system module has now been re-implemented.
+  + This was a major stepping stone towards the goal of having implementations everything in the Switch's package1/package2 firmware.
+  + This also lays the groundwork for libstratosphere providing bindings for changing the installed version of the Switch's OS.
+  + **Please Note**: The NCM implementation will initially be opt-in.
+    + The Atmosphere team is confident in our NCM implementation (and we have tested it on every firmware version).
+    + That said, this is our first system module that manages NAND savegames -- and caution is a habit.
+    + We do not anticipate any issues that didn't come up in testing, so this is just our being particularly careful.
+    + Users interested in opting in to using our implementation should set `stratosphere!ncm_enabled = 1` in BCT.ini.
+      + In the unlikely event that any issues are encountered, please report them to @SciresM.
+    + The NCM implementation will stop being opt-in in a future update, after thorough testing has been done in practice.
++ A bug was fixed in emummc that caused Nintendo path to be corrupted on 1.0.0.
+  + This manifested as the emummc folder being created inside the virtual NAND instead of the SD card.
+  + It's unlikely there are any negative consequences to this in practice.
+    + If you want to be truly sure, you can re-clone sysmmc before updating a 1.0.0 emummc to latest firmware.
++ Stratosphere system modules now use new Nintendo-style FS bindings instead of stdio.
+  + This saves a modest amount of memory due to leaner code, and greatly increases the accuracy of several components.
+  + These bindings will make it easier for other system modules using libstratosphere to interact with the filesystem.
+  + This also lays the groundwork for changes necessary to support per-emummc Atmosphere folders in a future update.
++ Atmosphere's fatal error context now dumps 0x100 of TLS.
+  + This will make it much easier to fix bugs when an error report is dumped for whatever caused the crash.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.3
++ Support was added for 9.2.0.
++ Support was added for redirecting manual html content for games.
+  + This works like normal layeredfs, replacing content placed in `/atmosphere/contents/<program id>/manual_html/`.
+  + This allows for game mods/translations to provide custom manual content, if they so choose.
++ A number of improvements were made to Atmosphere's memory usage, including:
+  + `fatal` now uses STB instead of freetype for rendering.
+    + This saves around 1 MB of memory, and makes our fatal substantially leaner than Nintendo's.
+  + `sm` no longer wastes 2 MiB unnecessarily.
++ fusee/sept's sdmmc access now better matches official behavior.
+  + This improves compatibility with some SD cards.
++ `ro` has been updated to reflect changes made in 9.1.0.
++ The temporary auto-migration added in 0.10.0 has been removed, since the transitionary period is well over.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.2
++ hbl configuration was made more flexible.
+  + Up to eight specific program ids can now be specified to have their own override keys.
+  + This allows designating both the album applet and a specific game as hbl by default as desired.
+  + Configuration targeting a specific program is now mutually exclusive with override-any-app for that program.
+    + This fixes unintuitive behavior when override key differed for an application specific program.
++ Loader's external content fileystem support was fixed (thanks @misson20000!).
++ KernelLdr was reimplemented.
+  + This is the first step towards developing mesosphere, Atmosphere's planned reimplementation of the Switch's Kernel.
+  + The typical user won't notice anything different, as there are no extensions, but a lot of groundwork was laid for future development.
++ Improvements were made to the way Atmosphere's buildsystem detects source code files.
+  + This significantly reduces compilation time (saving >30 seconds) on the machine that builds official releases.
++ Certain device code was cleaned up and made more correct in fusee/sept/exosphere (thanks @hexkyz!).
++ A number of changes were made to the way fs.mitm builds images when providing a layeredfs romfs.
+  + Some games (Resident Evil 6, Football Manager 2020 Touch, possibly others) have enormous numbers of files.
+  + Attempting to create a layeredfs mod for these games actually caused fs.mitm to run out of memory, causing a fatal error.
+  + The code that creates these images was changed to be significantly more memory efficient.
+  + However, these changes also cause a significant slowdown in the romfs building code (~2-5x).
+  + This introduced a noticeable stutter when launching a game, because the UI thread would block on the romfs creation.
+  + To solve this, fs.mitm now lazily initializes the image in a background thread.
+  + This fixes stutter issues, however some games may be slightly slower (~1-2s in the worst cases) to transition from the "loading" GIF to gameplay now.
+    + Please note: the slowdown is not noticeable in the common case where games don't have tons of files (typical is ~0.1-0.2 seconds).
+    + Once the image has been built, there is no further speed penalty at runtime -- only when the game is launched.
++ A number of other bugs were fixed, including:
+  + Several minor logic inversions that could have caused fatal errors when modding games.
+  + Atmosphere's new-ipc code did not handle "automatic" recvlist buffers correctly, so some non-libnx homebrew could crash.
+  + fs.mitm now correctly mitms sdb, which makes redirection of certain system data archives work again.
+    + In 0.10.0/0.10.1, changing the system font/language did not work correctly due to this.
+  +  A bug was fixed in process cleanup that caused the system to hang on < 5.0.0.
++ The temporary hid-mitm added in Atmosphere 0.9.0 was disabled by default.
+  + Please ensure your homebrew is updated.
+  + For now, users may re-enable this mitm by use of a custom setting (`atmosphere!enable_deprecated_hid_mitm`) to ease the transition process some.
+  + Please note: support for this setting may be removed to save memory in a future atmosphere release.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.1
++ A bug was fixed that caused memory reallocation to the system pool to work improperly on firmware 5.0.0 and above.
+  + Atmosphere was always trying to deallocate memory away from the applet pool and towards the system pool.
+    + The intent of this is to facilitate running more custom sysmodules/atmosphere binaries.
+  + However, while memory was always successfully taken away from the applet pool, on 5.0.0+ granting it to the system pool did not work for technical reasons.
+    + If you are interested in the technical details, talk to SciresM.
+  + This has now been fixed by adding new kernel patches, and memory is correctly granted to the system pool as intended.
++ Atmosphere's library system has been overhauled:
+  + libstratosphere's repository has been rebranded, more generally, to "Atmosphere-libs".
+    + In addition to libstratosphere, a new general library for not-stratosphere-specific code has been added.
+      + This is currently named `libvapours`.
+    + In the future, kernel functionality will be available as `libmesosphere`.
+  + The build system for stratosphere system modules has been similarly overhauled.
++ A number of other bugs were fixed, including:
+  + A bug was fixed that could cause memory corruption when redirecting certain Romfs content.
+  + A bug was fixed that could cause an infinite loop when redirecting certain Romfs content.
+  + A bug was fixed that could cause certain NROs to fail to load.
+    + This caused the latest version of Super Smash Bros to display "An error has occurred" on launch.
+  + A bug was fixed that caused input/output array sizes for certain circumstances to be calculated incorrectly.
+    + This caused cheats to fail to function properly.
+  + C++ exception code is now more thoroughly removed from stratosphere executables.
+    + This saves a minor amount of memory.
+  + A number of minor logic inversions were fixed in libstratosphere.
+    + These did not affect any code currently used by released Atmosphere binaries.
++ *Please note**: Because this update is releasing so soon after 0.10.0, the removal of the temporary hid-mitm has been postponed to 0.10.2.
+    + Please ensure your homebrew is updated.
++ Random number generation now uses TinyMT instead of XorShift.
++ General system stability improvements to enhance the user's experience.
+
+## 0.10.0
++ Support was added for 9.1.0
+  + **Please note**: The temporary hid-mitm added in Atmosphere 0.9.0 will be removed in Atmosphere 0.10.1.
+    + Please ensure your homebrew is updated.
++ The Stratosphere rewrite was completed.
+  + libstratosphere was rewritten as part of Stratosphere's refactor.
+    + Code responsible for providing and managing IPC services was greatly improved.
+      + The new code is significantly more accurate (it is bug-for-bug compatible with Nintendo's code), and significantly faster.
+  + ams.mitm was rewritten as part of Stratosphere's refactor.
+    + Saves redirected to the SD card are now separated for sysmmc vs emummc.
+    + **Please note**: If you find any bugs, please report them so they can be fixed.
++ Thanks to the rewrite, Atmosphere now uses significantly less memory.
+  + Roughly 10 additional megabytes are now available for custom system modules to use.
+  + This means you can potentially run more custom system modules simultaneously.
+    + If system modules are incompatible, please ask their authors to reduce their memory footprints.
++ Atmosphere's configuration layout has had major changes.
+  + Configuration now lives inside /atmosphere/config/.
+  + Atmosphere code now knows what default values should be, and includes them in code.
+    + It is no longer an error if configuration inis are not present.
+  + Correspondingly, Atmosphere no longer distributes default configuration inis.
+    + Templates are provided in /atmosphere/config_templates.
+  + loader.ini was renamed to override_config.ini.
+  + This fixes the longstanding problem that atmosphere updates overwrote user configuration when extracted.
++ Atmosphere's process override layout was changed.
+  + Atmosphere now uses the /atmosphere/contents directory, instead of /atmosphere/titles.
+    + This goes along with a refactoring to remove all reference to "title id" from code, as Nintendo does not use the term.
+  + To make this transition easier, a temporary functionality has been added that migrates folders to the new directory.
+    + When booting into 0.10.0, Atmosphere will rename /atmosphere/titles/`<program id>` to /atmosphere/contents/`<program id>`.
+      + This functionality may or may not be removed in some future update.
+    + This should solve any transition difficulties for the typical user.
+    + Please make sure that any future mods you install extract to the correct directory.
++ Support for configuring override keys for hbl was improved.
+  + The key used to override applications versus a specific program can now be different.
+    + The key to override a specific program can be managed via override_key.
+    + The key to override any app can be managed via override_any_app_key.
+  + Default override behavior was changed.
+    + By default, atmosphere will now override the album applet with hbl unless R is held.
+    + By default, atmosphere will now override any application with hbl only if R is held.
++ The default amount of applet memory reserved has been slightly increased.
+  + This allows the profile selector applet to work by default in applet mode.
++ The way process override status is captured was changed.
+  + Process override keys are now captured exactly once, when the process is created.
+    + This fixes the longstanding issue where letting go of the override button partway into the process launch could cause problems.
+  + The Mitm API was changed to pass around override status.
+    + Mitm services now know what keys were held when the client was created, as well as whether the client is HBL/should override contents.
+  + An extension was added to pm:info to allow querying a process's override status.
++ Thanks to process override capture improvements, hbl html behavior has been greatly improved.
+  + Web applets launched by hbl will now always see the /atmosphere/hbl_html filesystem
++ Support was added to exosphere for enabling usermode access to the PMU registers.
+  + This can be controlled via exosphere!enable_user_pmu_access in BCT.ini.
++ An enormous number of minor bugs were fixed.
+  + dmnt's cheat VM had a fix for an inversion in opcode behavior.
+  + An issue was fixed in fs.mitm's management of domain object IDs that could lead to system corruption in rare cases.
+  + The Mitm API no longer silently fails when attempting to handle commands passing C descriptors.
+    + On previous atmosphere versions, certain commands to FS would silently fail due to this...
+      + No users reported any visible errors, but it was definitely a problem behind the scenes.
+    + These commands are now handled correctly.
+  + Atmosphere can now display a fatal error screen significantly earlier in the boot process, if things go wrong early on.
+  + The temporary hid mitm will no longer sometimes cause games to fail to detect input.
+  + Mitm Domain object ID management no longer desynchronizes from the host process.
+  + An issue was fixed that could cause service acquisition to hang forever if certain sm commands were called in a precise order.
+  + An off-by-one was fixed that could cause memory corruption in server memory management.
+  + ... and too many more bugs fixed to reasonably list them all :)
++ General system stability improvements to enhance the user's experience.
+
+## 0.9.4
++ Support was added for 9.0.0.
+  + **Please note**: 9.0.0 made a number of changes that may cause some issues with homebrew. Details:
+  + 9.0.0 changed HID in a way that causes libnx to be unable to detect button input.
+    + Homebrew should be recompiled with newest libnx to fix this.
+    + Atmosphere now provides a temporary hid-mitm that will cause homebrew to continue to work as expected.
+      + This mitm will be removed in a future Atmosphere revision once homebrew has been updated, to allow users to use a custom hid mitm again if they desire.
+  + 9.0.0 introduced an dependency in FS on the USB system module in order to launch the SD card.
+    + This means the USB system module must now be launched before the SD card is initialized.
+    + Correspondingly, the USB system module can no longer be IPS patched, and its settings cannot be reliably mitm'd.
+    + We know this is frustrating, so we'll be looking into whether there is some way of addressing this in the future.
++ An off-by-one error was fixed in `boot` system module's pinmux initialization.
+  + This could theoretically have caused issues with HdmiCec communication.
+  + No users reported issues, so it's unclear if this was a problem in practice.
++ A bug was fixed that could cause webapplet launching homebrew to improperly set the accessible url whitelist.
++ BIS key generation has been fixed for newer hardware.
+  + Newer hardware uses new, per-firmware device key to generate BIS keys instead of the first device key, so previously the wrong keys were generated as backup.
+  + This only affects units manufactured after ~5.0.0.
++ General system stability improvements to enhance the user's experience.
+
+## 0.9.3
++ Thanks to hexkyz, fusee's boot sequence has been greatly optimized.
+  + Memory training is now managed by a separate binary (`fusee-mtc`, loaded by fusee-primary before fusee-secondary).
+  + Unnecessarily long splash screen display times were reduced.
+  + The end result is that Atmosphere now boots *significantly* faster. :)
+  + **Note:** This means fusee-primary must be updated for Atmosphere to boot successfully.
++ The version string was adjusted, and now informs users whether or not they are using emummc.
++ Atmosphere now automatically backs up the user's BIS keys on boot.
+  + This should prevent a user from corrupting nand without access to a copy of the keys needed to fix it.
+    + This is especially relevant on ipatched units, where the RCM vulnerability is not an option for addressing bricks.
++ The `pm` system module was rewritten as part of Stratosphere's ongoing refactor.
+  + Support was added for forward-declaring a mitm'd service before a custom user sysmodule is launched.
+    + This should help resolve dependency issues with service registration times.
+  + SM is now informed of every process's title id, including built-in system modules.
++ The `creport` system module was rewritten as part of Stratosphere's ongoing refactor.
+  + creport now dumps up to 0x100 of stack from each thread in the target process.
+  + A few bugs were fixed, including one that caused creport to incorrectly dump process dying messages.
++ Defaults were added to `system_settings.ini` for controlling hbloader's memory usage in applet mode.
+  + These defaults reserve enough memory so that homebrew can launch swkbd while in applet mode.
++ The `fatal` system module was rewritten as part of Stratosphere's ongoing refactor.
+  + Incorrect display output ("2000-0000") has been fixed. Fatal will now correctly show 2162-0002 when this occurs.
+  + A longstanding bug in how fatal manages the displays has been fixed, and official display init behavior is now matched precisely.
++ General system stability improvements to enhance the user's experience.
+
+## 0.9.2
++ A number of emummc bugfixes were added (all thanks to @m4xw's hard work). The following is a summary of emummc changes:
+  + Support for file-based emummc instances was fixed.
+    + Please note: file-based emummc is still unoptimized, and so may be much slower than partition-based.
+    + This speed differential should hopefully be made better in a future emummc update.
+  + The way emummc handles power management was completely overhauled.
+    + Emummc now properly handles init/de-init, and now supports low voltage mode.
+    + Much better support for shutdown was added, which should assuage corruption/synchronization problems.
+    + This should also improve support for more types of SD cards.
+  + A bug was fixed that caused emummc to not work on lower system versions due to missing SVC access.
+  + **Please note**: The configuration entries used for emummc have been changed.
+    + `emummc_` prefixes have been removed, since they are superfluous given the `emummc` category they are under.
+    + As an example, `emummc!emummc_enabled` is now `emummc!enabled`.
+    + INI configurations made by @CTCaer's [tool](https://github.com/ctcaer/hekate/releases/latest) (which is the recommended way to manage emummc) should automatically work as expected/be corrected.
+      + **If you do not wish to use the above, you will need to manually correct your configuration file**.
+  + General system stability improvements to enhance the user's experience.
++ Stratosphere is currently in the process of being re-written/refactored.
+  + Stratosphere was my (SciresM's) first C++ project, ever -- the code written for it a year ago when I was learning C++ is/was of much lower quality than code written more recently.
+  + Code is thus being re-rwitten for clarity/stlye/to de-duplicate functionality, with much being moved into libstratosphere.
+  + Stratosphere will, after the rewrite, globally use the `sts::` namespace -- this should greatly enhancing libstratosphere's ability to provide functionality for system modules.
+  + The rewritten modules consistently have lower memory footprints, and should be easier to maintain going forwards.
+  + The `sm`, `boot`, `spl`, `ro`, and `loader` modules have been tackled so far.
++ General system stability improvements to enhance the user's experience.
+
+## 0.9.1
++ Support was added for 8.1.0.
++ Please note, emummc is still considered **beta/experimental** -- this is not the inevitable bugfix update for it, although some number of bugs have been fixed. :)
++ General system stability improvements to enhance the user's experience.
+
+## 0.9.0
++ Creport output was improved significantly.
+  + Thread names are now dumped on crash in addition to 0x100 of TLS from each thread.
+    + This significantly aids debugging efforts for crashes.
+  + Support was added for 32-bit stackframes, so reports can now be generated for 32-bit games.
++ `dmnt`'s Cheat VM was extended to add a new debug opcode.
++ With thanks to/collaboration with @m4xw and @CTCaer, support was added for redirecting NAND to the SD card (emummc).
+  + Please note, this support is very much **beta/experimental**.
+    + It is quite likely we have not identified all bugs -- those will be fixed as they are reported over the next few days/weeks.
+    + In addition, some niceties (e.g. having a separate Atmosphere folder per emummc instance) still need some thought put in before they can be implemented in a way that makes everyone happy.
+    + If you are not an advanced user, you may wish to think about waiting for the inevitable 0.9.1 bugfix update before using emummc as your default boot option.
+      + You may especially wish to consider waiting if you are using Atmosphere on a unit with the RCM bug patched.
+  + Emummc is managed by editing the emummc section of "emummc/emummc.ini".
+    + To enable emummc, set `emummc!emummc_enabled` = 1.
+  + Support is included for redirecting NAND to a partition on the SD card.
+    + This can be done by setting `emummc!emummc_sector` to the start sector of your partition (e.g., `emummc_sector = 0x1A010000`).
+  + Support is also included for redirecting NAND to a collection of loose files on the SD card.
+    + This can be done by setting `emummc!emummc_path` to the folder (with archive bit set) containing the NAND boot partitions' files "boot0" and "boot1", and the raw NAND image files "00", "01", "02", etc. (single "00" file with the whole NAND image requires exFAT mode while multipart NAND can be used in both exFAT and FAT32 modes).
+  + The `Nintendo` contents directory can be redirected arbitrarily.
+    + By default, it will be redirected to `emummc/Nintendo_XXXX`, where `XXXX` is the hexadecimal representation of the emummc's ID.
+      + The current emummc ID may be selected by changing `emummc!emummc_id` in emummc.ini.
+    + This can be set to any arbitrary directory by setting `emummc!emummc_nintendo_path`.
+  + To create a backup usable for emummc, users may use tools provided by the [hekate](https://github.com/CTCaer/hekate) project.
+  + If, when using emummc, you encounter a bug, *please be sure to report it* -- that's the only way we can fix it. :)
+
+## 0.8.10
++ A bug was fixed that could cause incorrect system memory allocation on 5.0.0.
+  + 5.0.0 should now correctly have an additional 12 MiB allocated for sysmodules.
++ Atmosphère features which check button presses now consider all controllers, isntead of just P1.
++ Support was added for configuring language/region on a per-game basis.
+  + This is managed by editing `atmosphere/titles/<title id>/config.ini` for the game.
+  + To edit title language, edit `override_config!override_language`.
+    + The languages supported are `ja`, `en-US`, `fr`, `de`, `it`, `es`, `zh-CN`, `ko`, `nl`, `pt`, `ru`, `zh-TW`, `en-GB`, `fr-CA`, `es-419`, `zh-Hans`, `zh-Hant`.
+  + To edit title region, edit `override_config!override_region`.
+    + The regions supported are `jpn`, `usa`, `eur`, `aus`, `chn`, `kor`, `twn`.
++ Atmosphère now provides a reimplementation of the `boot` system module.
+  + `boot` is responsible for performing hardware initialization, showing the Nintendo logo, and repairing NAND on system update failure.
+  + Atmosphère's `boot` implementation preserves AutoRCM during NAND repair.
+    + NAND repair occurs when an unexpected shutdown or error happens during a system update.
+    + This fixes a final edge case where AutoRCM might be removed by HOS, which could cause a user to burn fuses.
++ General system stability improvements to enhance the user's experience.
+
+## 0.8.9
++ A number of bugs were fixed, including:
+  + A data abort was fixed when mounting certain partitions on NAND.
+  + All Stratosphère system modules now only maintain a connection to `sm` when actively using it.
+    + This helps mitigate the scenario where sm hits the limit of 64 active connections and crashes.
+    + This sometimes caused crashes when custom non-Atmosphère sysmodules were active and the user played certain games (ex: Smash's Stage Builder).
+  + fatal now uses the 8.0.0 clkrst API, instead of silently failing to adjust clock rates on that firmware version.
+  + A wait loop is now performed when trying to get a session to `sm`, in the case where `sm:` is not yet registered.
+    + This fixes a race condition that could cause a failure to boot under certain circumstances.
+  + libstratosphere's handling of domain object closing has been improved.
+    + Previously, this code could cause crashes/extremely odd behavior (misinterpreting what object a service is) under certain circumstances.
++ An optional automatic reboot timer was added to fatal.
+  + By setting the system setting `atmosphere!fatal_auto_reboot_interval` to a non-zero u64 value, fatal can be made to automatically reboot after a certain number of milliseconds.
+  + If the setting is zero or not present, fatal will wait for user input as usual.
++ Atmosphère now provides a reimplementation of the `ro` system module.
+  + `ro` is responsible for loading dynamic libraries (NROs) on 3.0.0+.
+    + On 1.0.0-2.3.0, this is handled by `loader`.
+  + Atmosphere's `ro` provides this functionality (`ldr:ro`, `ro:dmnt`) on all firmware versions.
+  + An extension was implemented to provide support for applying IPS patches to NROs.
+    + All patches at paths like /atmosphere/nro_patches/<user-defined patch name>/<Hex Build-ID for NRO to patch>.ips will be applied, allowing for easy distribution of patches.
+    + Both the IPS and IPS32 formats are supported.
++ Atmosphère now provides a reimplementation of the `spl` system module.
+  + `spl` (Secure Platform Services) is responsible for cryptographic operations, including all communications with the secure monitor (exosphère).
+  + In the future, this may be used to provide extensions to the API for interacting with exosphère from userland.
++ General system stability improvements to enhance the user's experience.
+
+## 0.8.8
++ Support was added for firmware version 8.0.0.
++ Custom exception handlers were added to stratosphere modules.
+  + If a crash happens in a core atmosphere module now, instead of silently failing a reboot will occur to log the information to the SD card.
++ A bug was fixed in creport that caused games to hang when crashing under certain circumstances.
++ A bug was fixed that prevented maintenance mode from booting on 7.0.0+.
++ General system stability improvements to enhance the user's experience.
+
 ## 0.8.7
 + A few bugs were fixed that could cause fatal to fail to show an error under certain circumstances.
 + A bug was fixed that caused an error when launching certain games (e.g. Hellblade: Senua's Sacrifice).
@@ -14,6 +452,7 @@
   + Please note, this feature is **experimental**, and may cause problems. Please use at your own risk (and back up your saves before enabling it), as it still needs testing.
   + This can be enabled by setting `atmosphere!fsmitm_redirect_saves_to_sd` to 1 in `system_settings.ini`.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.6
 + A number of bugs were fixed, including:
   + A case of inverted logic was fixed in fs.mitm which prevented the flags system from working correctly.
@@ -51,6 +490,7 @@
   + fs.mitm will also now cause requests to mount the HtmlDocument content for HBL's title to open the `sdmc:/atmosphere/hbl_html` folder.
     + By default, this just contains a URL whitelist.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.5
 + Support was added for overriding content on a per-title basis, separate from HBL override.
   + This allows for using mods on the same title that one uses to launch HBL.
@@ -61,7 +501,7 @@
   + This should greatly simplify the update process in the future, for users who do not launch Atmosphère using fusee.
 + Support for cheat codes was added.
   + These are handled by a new `dmnt` sysmodule, which will also reimplement Nintendo's Debug Monitor in the future.
-  + Cheat codes can be enabled/disabled at application launch via a per-title key combination. 
+  + Cheat codes can be enabled/disabled at application launch via a per-title key combination.
     + For details, please see the [cheat loading documentation](https://github.com/Atmosphere-NX/Atmosphere/blob/master/docs/cheats.md#cheat-loating-process).
   + Cheat codes are fully backwards compatible with the pre-existing format, although a number of bugs have been fixed and some new features have been added.
     + For details, please see [the compatibility documentation](https://github.com/Atmosphere-NX/Atmosphere/blob/master/docs/cheats.md#cheat-code-compatibility).
@@ -72,6 +512,7 @@
 + A bug was fixed that would cause Atmosphère's fatal screen to not show on 1.0.0-2.3.0.
 + A bug was fixed that caused Atmosphère's automatic ProdInfo backups to be corrupt.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.4
 + Support for 7.0.0/7.0.1 was added.
   + This is facilitated through a new payload, `sept`, which can be signed, encrypted, and then loaded by Nintendo's TSEC firmware.
@@ -87,6 +528,7 @@
   + Performing a reboot from the reboot menu now reboots to atmosphere. This can be configured via `system_settings.ini`.
   + Performing a shutdown from the reboot menu now works properly with AutoRCM, and does a real shutdown.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.3
 + A custom warmboot firmware was implemented, which does not perform anti-downgrade fuse checks.
   + This fixes sleep mode when using a downgraded NAND.
@@ -107,6 +549,7 @@
   + Fatal will now use this to reboot to sdmc:/atmosphere/reboot_payload.bin if present, when a vol button is pressed.
   + An example homebrew ("reboot_to_payload") was also written and is now included with Atmosphère.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.2
 + A number of bugs were fixed causing users to sometimes see `Key Derivation Failed!`.
   + KFUSE clock enable timings have been adjusted to allow time to stabilize before TSEC is granted access.
@@ -116,6 +559,7 @@
 + A bug was fixed causing sleep mode to not work with debugmode enabled.
   + As a result, debugmode is now enabled in the default BCT.ini.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.1
 + A bug was fixed causing users to see `Failed to enable SMMU!` if fusee had previously rebooted.
   + This message will still occur sporadically if fusee is not launched from coldboot, but it can never happen twice in a row.
@@ -134,9 +578,10 @@
     + This should prevent running FS without `nogc` patches after updating to an unsupported system version.
 + An extension was added to `exosphere` allowing userland applications to cause the system to reboot into RCM:
   + This is done by calling smcSetConfig(id=65001, value=<nonzero>); user homebrew can use splSetConfig for this.
-+ On fatal error, the user can now choose to perform a standard reboot via the power button, or a reboot into RCM via either volume button. 
++ On fatal error, the user can now choose to perform a standard reboot via the power button, or a reboot into RCM via either volume button.
 + A custom message was added to `fatal` for when an Atmosphère API version mismatch is detected (2495-1623).
 + General system stability improvements to enhance the user's experience.
+
 ## 0.8.0
 + A custom `fatal` system module was added.
   + This re-implements and extends Nintendo's fatal module, with the following features:
@@ -170,6 +615,7 @@
   + By default, new keys will automatically be derived without user input.
   + Support is also present for loading new keys from `atmosphere/prod.keys` or `atmosphere/dev.keys`
 + General system stability improvements to enhance the user's experience.
+
 ## 0.7.5
 + DRAM training was added to fusee-secondary, courtesy @hexkyz.
   + This greatly improves the speed of memory accesses during boot, resulting in a boot time that is ~200-400% faster.
@@ -177,7 +623,8 @@
   + Instead of only checking one of the crashing thread's PC/LR for code region presence, creport now checks both + every address in the stacktrace. This is also now done for every thread.
     + This matches the improvement Nintendo added to official creport in 6.1.0.
   + The code region detection heuristic was further improved by checking whether an address points to .rodata or .rwdata, instead of just .text.
-  + This means that a crash appears in a loaded NRO (or otherwise discontiguous) code region, creport will be able to detect all active code regions, and not just that one. 
+  + This means that a crash appears in a loaded NRO (or otherwise discontiguous) code region, creport will be able to detect all active code regions, and not just that one.
+
 ## 0.7.4
 + [libstratosphere](https://github.com/Atmosphere-NX/libstratosphere) has been completely refactored/rewritten, and split into its own, separate submodule.
   + While this is mostly "under the hood" for end-users, the refactor is faster (improving both boot-time and runtime performance), more accurate (many of the internal IPC structures are now bug-for-bug compatible with Nintendo's implementations), and significantly more stable (it fixes a large number of bugs present in the old library).
@@ -198,11 +645,13 @@
   + PM now only gives full FS permissions to the active KIPs. This fixes a potential crash where new processes might be unable to be registered with FS.
 + The `make dist` target now includes the branch in the generated zip name.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.7.3
 + Loader and fs.mitm now try to reload loader.ini before reading it. This allows for changing the override button combination/HBL title id at runtime.
 + Added a MitM between set:sys and qlaunch, used to override the system version string displayed in system settings.
   + The displayed system version will now display `<Actual version> (AMS <x>.<y>.<z>)`.
 + General system stability improvements to enhance the user's experience.
+
 ## 0.7.2
 + Fixed a bug in fs.mitm's LayeredFS read implementation that caused some games to crash when trying to read files.
 + Fixed a bug affecting 1.0.0 that caused games to crash with fatal error 2001-0106 on boot.

docs/components/emummc.md

@@ -0,0 +1,4 @@
+# emummc
+emummc is a collaborative project that provides eMMC storage emulation.
+
+Please refer to the project's repository [here](https://github.com/m4xw/emuMMC) for detailed instructions and documentation.

docs/components/exosphere.md

@@ -1,10 +1,76 @@
-# Exosphère
-Exosphère is a reimplementation of Arm's TrustZone (TZ), also known as Secure Monitor (Secure_Monitor.bin). It has the highest privilege mode available on the Switch’s processor, and has access to everything on the console.
-
-Exosphère will potentially play a big role in Jamais Vu and Déja Vu, which are upcoming software exploits for the Switch, allowing one to launch Atmosphère on a Fusée-Gélee patched (ipatched) Switch console, and will also enable one to launch into CFW directly from the Switch itself without the use of any sort of external device, such as a computer or RCM jig, provided they are on a low enough system firmware.
-
-## TrustZone/Secure Monitor
-TrustZone is responsible for all the cryptographic operations on the Switch. The idea behind the way it operates is that all the keys stay in the TrustZone, and userspace only gets "handles" to them. This would make sure that keydata never leaks and is kept secure. It also has a few more responsibilities, such as power management, providing a source of random numbers, and providing access to various pieces of information that are stored in the fuses.
+# exosphère
+exosphère is a customized reimplementation of the Horizon OS's Secure Monitor.
+The Secure Monitor follows the same design principle as Arm's TrustZone and both terms can be used interchangeably in this context. It runs at the highest privilege mode (EL3) available to the main processor and is responsible for all the sensitive cryptographic operations needed by the system as well as power management for each CPU.
 
 ## Extensions
-Exosphère currently only contains one extension, an SMC allowing homebrew to find which version of Atmosphère is currently running, in order to find out what extensions are allowed to be used.
+exosphère expands the original Secure Monitor design by providing custom SMCs (Secure Monitor Calls) necessary to the homebrew ecosystem. Currently, these are:
+```
+uint32_t smc_ams_iram_copy(smc_args_t *args);
+uint32_t smc_ams_write_address(smc_args_t *args);
+uint32_t smc_ams_get_emummc_config(smc_args_t *args);
+```
+
+Additionally, exosphère expands the functionality of two SMCs provided by the Horizon OS for getting/setting configuration items. The following custom configuration items are provided by exosphère:
+```
+CONFIGITEM_EXOSPHERE_VERSION = 65000,
+CONFIGITEM_NEEDS_REBOOT = 65001,
+CONFIGITEM_NEEDS_SHUTDOWN = 65002,
+CONFIGITEM_EXOSPHERE_VERHASH = 65003,
+CONFIGITEM_HAS_RCM_BUG_PATCH = 65004,
+CONFIGITEM_SHOULD_BLANK_PRODINFO = 65005,
+CONFIGITEM_ALLOW_CAL_WRITES = 65006,
+```
+
+### smc_ams_iram_copy
+This function implements a copy of up to one page between DRAM and IRAM. Its arguments are:
+```
+args->X[1] = DRAM address (translated by kernel), must be 4-byte aligned.
+args->X[2] = IRAM address, must be 4-byte aligned.
+args->X[3] = Size (must be <= 0x1000 and 4-byte aligned).
+args->X[4] = 0 for read, 1 for write.
+```
+
+### smc_ams_write_address
+This function implements a write to a DRAM page. Its arguments are:
+```
+args->X[1] = Virtual address, must be size-bytes aligned and readable by EL0.
+args->X[2] = Value.
+args->X[3] = Size (must be 1, 2, 4, or 8).
+```
+
+### smc_ams_get_emummc_config
+This function retrieves configuration for the current [emummc](emummc.md) context. Its arguments are:
+```
+args->X[1] = MMC id, must be size-bytes aligned and readable by EL0.
+args->X[2] = Pointer to output (for paths for filebased + nintendo dir), must be at least 0x100 bytes.
+```
+
+### CONFIGITEM_EXOSPHERE_VERSION
+This custom configuration item gets information about the current exosphere version.
+
+### CONFIGITEM_NEEDS_REBOOT
+This custom configuration item is used to issue a system reboot into RCM or into a warmboot payload leveraging a secondary vulnerability to achieve code execution from warm booting.
+
+### CONFIGITEM_NEEDS_SHUTDOWN
+This custom configuration item is used to issue a system shutdown with a warmboot payload leveraging a secondary vulnerability to achieve code execution from warm booting.
+
+### CONFIGITEM_EXOSPHERE_VERHASH
+This custom configuration item gets information about the current exosphere git commit hash.
+
+### CONFIGITEM_HAS_RCM_BUG_PATCH
+This custom configuration item gets whether the unit has the CVE-2018-6242 vulnerability patched.
+
+### CONFIGITEM_SHOULD_BLANK_PRODINFO
+This custom configuration item gets whether the unit should simulate a "blanked" PRODINFO. See [here](../features/configurations.md) for more information.
+
+### CONFIGITEM_ALLOW_CAL_WRITES
+This custom configuration item gets whether the unit should allow writing to the calibration partition.
+
+## lp0fw
+This is a small, built-in payload that is responsible for waking up the system during a warm boot.
+
+## sc7fw
+This is a small, built-in payload that is responsible for putting the system to sleep during a warm boot.
+
+## rebootstub
+This is a small, built-in payload that provides functionality to reboot the system into any payload of choice.

docs/components/fusee.md

@@ -0,0 +1,22 @@
+# fusée
+fusée is a custom bootloader used to start the Atmosphère environment.
+It is divided into three sub-components: fusée-primary, fusée-mtc and fusée-secondary.
+
+fusée is also capable of chainloading other payloads (e.g.: Android).
+
+fusée's behavior can be configured via the [BCT.ini](../features/configurations.md) file located on the SD card.
+
+## fusée-primary
+fusée-primary is the first piece of Atmosphère's code that runs on the hardware.
+It is distributed as a standalone payload designed to be launched via RCM by abusing the CVE-2018-6242 vulnerability.
+
+This payload is responsible for all the low-level hardware initialization required by the Nintendo Switch, plus the extra task of initializing the SD card and reading the next fusée sub-components from it.
+
+## fusée-mtc
+fusée-mtc is an optional, but heavily recommended sub-component that performs DRAM memory training.
+This ensures a proper environment for running the final fusée sub-component.
+
+## fusée-secondary
+fusée-secondary is the last fusée sub-component that runs on the system.
+It is responsible for configuring and bootstrapping the Atmosphère environment by mimicking the Horizon OS's design.
+This includes setting up the cryptosystem, mounting or emulating the eMMC, injecting or patching system modules and launching the exosphère component.

docs/components/fusee/BCT.md

@@ -1,73 +0,0 @@
-# BCT.ini
-BCT.ini is the configuration file used by fusée-primary and fusée-secondary. It is read by fusee-primary.bin to setup and boot fusee-secondary.bin and is also read by fusee-secondary.bin to configure Exosphère, specify the environment it should boot, or configure other miscellaneous options such as setting a custom boot splashscreen.
-
-## Configuration
-This file is located in the `atmosphere` folder on your SD card. The default configuration file will look similar to this.
-```
-BCT0
-[stage1]
-stage2_path = atmosphere/fusee-secondary.bin
-stage2_addr = 0xF0000000
-stage2_entrypoint = 0xF0000000
-
-[exosphere]
-; Note: Disabling debugmode will cause parts of ams.tma to not work, in the future.
-debugmode = 1 
-debugmode_user = 0
-
-[stratosphere]
-; To force-enable nogc, add nogc = 1
-; To force-disable nogc, add nogc = 0
-```
-
-## Adding a Custom Boot Splashscreen
-Add the following lines to BCT.ini and change the value of `custom_splash` to the actual path and filename of your boot splashscreen.
-```
-[stage2]
-custom_splash = /path/to/your/bootlogo.bmp
-```
-
-The boot splashscreen must be a BMP file, it must be 720x1280 (1280x720 rotated 90 degrees left/counterclockwise/anti-clockwise) resolution, and be in 32-bit ARGB format. You can use image editing software such as GIMP or Photoshop to export the image in this format.
-
-## Configuring "nogc" Protection
-Nogc is a feature provided by fusée-secondary which disables the Nintendo Switch's Game Card reader. Its purpose is to prevent the reader from being updated when the console has been updated without burning fuses from a firmware lower than 4.0.0, to a newer firmware that is at least 4.0.0 or higher. By default, Atmosphère will protect the Game Card reader automatically, but you are free to change it.
-
-To change its functionality, add the following line to the `stratosphere` section and change the value of `X` according to the following list.
-```
-nogc = X
-```
-```
-1 = force-enable nogc, so Atmosphère will always disable the Game Card reader.
-0 = force-disable nogc, so Atmosphère will always enable the Game Card reader.
-```
-
-
-## Changing Target Firmware
-Add the following line to the `exosphere` section and replace the `X` according to the following list if you have trouble booting past the firmware version detection.
-`target_firmware` is the OFW major version. 
-```
-target_firmware = X
-```
-```
-1.0.0 = 1
-2.X.X = 2
-3.X.X = 3
-4.X.X = 4
-5.X.X = 5
-6.X.X = 6
-6.2.0 = 7
-7.X.X = 8
-```
-
-Note that 6.X.X indicates 6.0.0 through 6.1.0.
-
-## Configuring Debugging Modes
-By default, Atmosphère signals to the Horizon kernel that debugging is enabled while leaving usermode debugging disabled, since this can cause undesirable side-effects. If you wish to change these behaviours, go to the `exosphere` section and change the value of `X` according to the following list.
-```
-debugmode = X
-debugmode_user = X
-```
-```
-1 = enable
-0 = disable
-```

docs/components/fusee/fusee.md

@@ -1,20 +0,0 @@
-# Fusée
-Fusée (not to be confused with Fusée Gelée) is a custom bootloader needed to start Atmosphère and replaces Nintendo's Package1loader/bootloader. It currently utilizes the [Tegra X1 RCM Vulnerability](https://nvidia.custhelp.com/app/answers/detail/a_id/4660/~/security-notice%3A-nvidia-tegra-rcm-vulnerability) in order to function.
-
-Fusée is split into two separate parts: fusée-primary and fusée-secondary. This is due to the RCM Vulnerability only allowing payloads of a limited filesize to be sent to the device.
-
-As of June 2018, there are new Switch systems being sold that prevent Fusée (or any payload that requires the Fusée Gelée exploit) from working due to having an ipatched bootrom. All ipatched systems share the HAC-S-JXE-C3 product code. While Fusée cannot work on these ipatched units, they still come on firmware 4.1.0, which is vulnerable to the upcoming Déja Vu software exploit. Note that if you update past 4.1.0 on one of these ipatched units, your odds of being able to install Atmosphère or run any homebrew become practically non-existent.
-
-Additionally, a hardware revision of the Switch known as “Mariko” is believed to be in development. No such units have been seen in stores yet, but it is expected Nintendo will roll them out silently. The Mariko units will most likely patch the bootrom vulnerability Fusée Gelée, which is currently used to access CFW, and will likely have their own proprietary bootloader.
-
-## Fusée-Primary
-Fusée-primary is the payload file (fusee-primary.bin) sent to the Switch from an external device. Once sent, fusée-primary makes initial preparations before loading fusée-secondary from the Switch’s SD Card.
-
-Fusée-primary can be configured via the [BCT.ini](../fusee/BCT.md) file located on the Switch’s SD card.
-
-## Fusée-Secondary
-Fusée-secondary is a payload file that stays on the root of the Switch’s SD Card (fusee-secondary.bin). It is automatically launched once fusée-primary has finished, and is responsible for preparing the Switch’s hardware for future running environments, such as the homebrew menu. Fusée-secondary is also responsible for validating and launching Exosphère.
-
-Fusée-secondary contains various [.kip modules](/docs/main.md#modules). These modules modify existing features in the OS, and can also add new ones.
-
-Fusée is also capable of chainloading other payloads such as Linux.

docs/components/fusee/sept.md

@@ -1,15 +0,0 @@
-# sept
-Sept is a payload that facilitates booting Atmosphère when targeting firmware version 7.0.0+.
-
-It consists of a primary and a secondary payload.
-
-## Sept-Primary
-Sept-primary is essentially a stand-in for Nintendo's package1ldr, on 7.0.0+. To use it, the caller (normally Fusée-secondary) loads the sept-primary binary to `0x4003F000`,
-loads the 7.0.0+ TSEC firmware to `0x40010F00`, and loads a signed, encrypted payload to `0x40016FE0`.
-
-This signed, encrypted payload is normally Sept-secondary.
-
-## Sept-Secondary
-Sept-secondary is a payload that performs 7.0.0+ key derivation, and then chainloads to `sept/payload.bin`.
-
-It is normally stored encrypted/signed; if one wishes to build sept-secondary instead of using release builds, one must bring his/her own keys.

docs/components/libraries.md

@@ -0,0 +1,11 @@
+# libraries
+This is a collection of libraries for doing operating system development for the Nintendo Switch.
+
+## libmesosphere
+libmesosphere is a work-in-progress C++ library implementing functionality for the Horizon Kernel.
+
+## libstratosphere
+libstratosphere is a work-in-progress C++ library for development of system modules for the Nintendo Switch.
+
+## libvapours
+Common boilerplate code for various purposes. 

docs/components/mesosphere.md

@@ -0,0 +1,3 @@
+# mesosphère
+mesosphère is a work in progress customized kernel reimplementation.
+The Horizon OS's kernel follows microkernel design principles and runs at the EL1 level. It is currently subdivided into a loader (kernel_ldr) and the main kernel code.

docs/components/modules/ams_mitm.md

@@ -0,0 +1,35 @@
+# ams_mitm
+This module provides methods to intercept services provided by other system modules. It is further sub-divided according to the service it targets.
+
+## bpc_mitm
+bpc_mitm enables intercepting requests to power control services. It currently intercepts:
++ `am` system module (to intercept the Reboot/Power buttons in the overlay menu)
++ `fatal` system module (to simplify payload reboot logic significantly)
++ [nx-hbloader](https://github.com/switchbrew/nx-hbloader) (to allow homebrew to take advantage of the feature)
+
+## fs_mitm
+fs_mitm enables intercepting file system operations. It can deny, delay, replace, or redirect any request made to the file system. It enables LayeredFS to function, which allows for replacement of game assets.
+
+## hid_mitm
+hid_mitm enables intercepting requests to controller device services. It is currently disabled by default. If enabled, it intercepts:
++ [nx-hbloader](https://github.com/switchbrew/nx-hbloader) (to help homebrew not need to be recompiled due to a breaking change introduced in the past)
+
+Note that hid_mitm is currently deprecated and might be removed entirely in the future.
+
+## ns_mitm
+ns_mitm enables intercepting requests to application control services. It currently intercepts:
++ Web Applets (to facilitate nx-hbloader web browser launching)
+
+## set_mitm
+set_mitm enables intercepting requests to the system settings service. It currently intercepts:
++ `ns` system module and games (to allow for overriding game locales)
++ All firmware debug settings requests (to allow modification of system settings not directly exposed to the user)
+
+### Firmware Version
+set_mitm intercepts the `GetFirmwareVersion` command, if the requester is `qlaunch` or `maintenance`.
+It modifies the `display_version` field of the returned system version, causing the version to display
+in settings as `#.#.#|AMS #.#.#|?` with `? = S` when running under system eMMC or `? = E` when running under emulated eMMC. This allows users to easily verify what version of Atmosphère and what eMMC environment they are running.
+
+### System Settings
+set_mitm intercepts the `GetSettingsItemValueSize` and `GetSettingsItemValue` commands for all requesters.
+It does so in order to enable user configuration of system settings, which are parsed from `/atmosphere/system_settings.ini` on boot. See [here](../../features/configurations.md) for more information on the system settings format.

docs/components/modules/boot.md

@@ -0,0 +1,4 @@
+# boot
+This module is a reimplementation of the Horizon OS's `boot` system module, which is responsible for initializing and configuring hardware.
+
+Atmosphère's reimplementation displays its own black and white splash screen and battery icons as replacements for the original assets used during display initialization.

docs/components/modules/boot2.md

@@ -0,0 +1,4 @@
+# boot2
+This module is a reimplementation of the Horizon OS's `boot2` system module, which is responsible for launching all the other necessary system modules.
+
+Atmosphère's reimplementation allows launching user provided system modules from the SD card. See [here](../../features/configurations.md) for more information.

docs/components/modules/creport.md

@@ -0,0 +1,4 @@
+# creport
+This module is a reimplementation of the Horizon OS's `creport` system module, which is responsible for managing crash reports.
+
+Atmosphère's reimplementation redirects writing of generated crash reports to the SD card under the folder `/atmosphere/crash_reports/`. It also prevents the automatic uploading of said crash reports.

docs/components/modules/dmnt.md

@@ -0,0 +1,42 @@
+# dmnt
+This module is a reimplementation of the Horizon OS's `dmnt` system module, which provides a debug monitor.
+
+## Extensions
+Atmosphère implements an extension to provide cheat code functionality.
+
+### Cheat Service
+A HIPC service API is provided for interacting with the cheat code manager through the service `dmnt:cht`. See [here](../../features/cheats.md) for more information on the cheat code format.
+
+The SwIPC definition for `dmnt:cht` follows:
+```
+interface ams::dmnt::cheat::CheatService is dmnt:cht {
+  [65000] HasCheatProcess() -> sf::Out<bool> out;
+  [65001] GetCheatProcessEvent() -> sf::OutCopyHandle out_event;
+  [65002] GetCheatProcessMetadata() -> sf::Out<CheatProcessMetadata> out_metadata;
+  [65003] ForceOpenCheatProcess();
+  [65004] PauseCheatProcess();
+  [65005] ResumeCheatProcess();
+
+  [65100] GetCheatProcessMappingCount() -> sf::Out<u64> out_count;
+  [65101] GetCheatProcessMappings(u64 offset) -> sf::OutArray<MemoryInfo> &mappings, sf::Out<u64> out_count;
+  [65102] ReadCheatProcessMemory(u64 address, u64 out_size) -> sf::OutBuffer &buffer;
+  [65103] WriteCheatProcessMemory(sf::InBuffer &buffer, u64 address, u64 in_size);
+  [65104] QueryCheatProcessMemory(u64 address) -> sf::Out<MemoryInfo> mapping;
+
+  [65200] GetCheatCount() -> sf::Out<u64> out_count;
+  [65201] GetCheats(u64 offset) -> sf::OutArray<CheatEntry> &cheats, sf::Out<u64> out_count;
+  [65202] GetCheatById(u32 cheat_id) -> sf::Out<CheatEntry> cheat;
+  [65203] ToggleCheat(u32 cheat_id);
+  [65204] AddCheat(CheatDefinition &cheat, bool enabled) -> sf::Out<u32> out_cheat_id;
+  [65205] RemoveCheat(u32 cheat_id);
+  [65206] ReadStaticRegister(u8 which) -> sf::Out<u64> out;
+  [65207] WriteStaticRegister(u8 which, u64 value);
+  [65208] ResetStaticRegisters();
+
+  [65300] GetFrozenAddressCount() -> sf::Out<u64> out_count;
+  [65301] GetFrozenAddresses(u64 offset) ->sf::OutArray<FrozenAddressEntry> &addresses, sf::Out<u64> out_count;
+  [65302] GetFrozenAddress(u64 address) -> sf::Out<FrozenAddressEntry> entry;
+  [65303] EnableFrozenAddress(u64 address, u64 width) -> sf::Out<u64> out_value;
+  [65304] DisableFrozenAddress(u64 address);
+}
+```

docs/components/modules/eclct.stub.md

@@ -0,0 +1,4 @@
+# eclct.stub
+This module is a reimplementation of the Horizon OS's `eclct` system module, which collects error reports.
+
+Atmosphère's reimplementation is a stub to remove any and all functionality pertaining to error report collection.

docs/components/modules/erpt.md

@@ -0,0 +1,4 @@
+# erpt
+This module is a reimplementation of the Horizon OS's `erpt` system module, which is responsible for managing error reports.
+
+Atmosphère's reimplementation redirects writing of generated error reports to the SD card under the folder `/atmosphere/erpt_reports/`.

docs/components/modules/fatal.md

@@ -0,0 +1,4 @@
+# fatal
+This module is a reimplementation of the Horizon OS's `fatal` system module, which is responsible for managing fatal reports.
+
+Atmosphère's reimplementation prevents error report creation and draws a custom error screen, showing registers and a backtrace. It also attempts to gather debugging info for any and all crashes and tries to save reports to the SD card under the folder `/atmosphere/fatal_reports/`.

docs/components/modules/jpegdec.md

@@ -0,0 +1,4 @@
+# jpegdec
+This module is a reimplementation of the Horizon OS's `jpegdec` system module, which is responsible for JPEG format decoding.
+
+Atmosphère's reimplementation allows two sessions instead of 1, so homebrew can use it for software JPEG decoding in addition to the OS itself.

docs/components/modules/loader.md

@@ -0,0 +1,106 @@
+# loader
+This module is a reimplementation of the Horizon OS's `ldr` system module, which is responsible for creating processes from executable NSO images and registering their access control.
+
+## Extensions
+Atmosphère extends this module to allow executables to be replaced or patched by files stored on the SD card. Note that a few services are required for SD card access and therefore cannot be replaced or patched in this manner.
+
+### Exefs Replacement
+Atmosphère's reimplementation allows replacing executable files in the file system.
+
+#### Partition Replacement
+It is possible to replace the full exefs partition at once with a PFS0 file. In that case, Atmosphère will load the following file:
+```
+/atmosphere/contents/<program id>/exefs.nsp
+```
+
+#### File Replacement
+When a process is created, loader will search for several NSO filenames in the program's exefs directory.
+These filenames are, in this order:
+  - rtld
+  - main
+  - subsdk0
+  - subsdk1
+  - ...
+  - subsdk9
+  - sdk
+
+Each NSO that is found will be loaded into the process contiguously. The process's entrypoint is at the first NSO to be loaded, usually `rtld` or `main`.
+
+Additionally, when a process is loaded, loader will search for a `main.npdm` file in the exefs directory specifying the program's permissions.
+
+Atmosphère extends this functionality by also searching for these files on the SD card. When searching for a file, loader will first check if it exists on the SD card. If it does, that file will be used instead. Otherwise, it will use the copy located in the exefs, if that is present. The following directory will be searched:
+```
+/atmosphere/contents/<program id>/exefs/
+```
+
+This allows the replacement of applets, system modules, or even games with homebrew versions.
+
+##### File Stubbing
+In order to prevent an NSO from being loaded even if it exists in the exefs, loader will also check if a stub file exists. If such a file exists, the NSO will not be loaded. The files should be named like `rtld.stub`, `main.stub`, etc. and may be empty.
+
+##### Technical Semantics
+
+loader's semantics for content override can (as you may observe from reading the above) be complicated to understand. The following is an abbreviated description of the very technical semantics by which loader decides what content to read when trying to read a file for a program id.
+
+* If an external content filesystem exists for the program id, the external content filesystem is used directly with no further redirection.
+* Otherwise, if the program ID is being overridden with [nx-hbloader](https://github.com/switchbrew/nx-hbloader/releases) (see Homebrew Support below), the nsp filesystem for hbl is used directly with no further redirection.
+* Otherwise, if content redirection is enabled for the program ID (controlled by a configurable button combination) and a loose file exists on the SD card, the loose file is used.
+* Otherwise, if a stub file exists, a "Not Found" error is returned.
+* Otherwise, if an SD card executable filesystem ("exefs.nsp") exists, it is used without further redirection.
+* Finally, the "real"/base code file system is used without further redirection.
+
+In addition, there are a few other technical details relevant to Atmosphere's redirection:
+* When overriding with nx-hbloader, the real code filesystem must exist. When "main.npdm" (a program capabilities descriptor file) is read, the content from the real code filesystem is read in order to determine whether an applet or an application is being overridden. This allows nx-hbloader to automatically support both applet and application environments.
+* When overriding applications, the real code filesystem must exist and contain valid content. This is required to perform accurate-to-Nintendo content verification procedures.
+* When programs are launched, both a program id and a "storage id" are specified by the launch requester. When the storage id specified is "none" (normally always invalid), Atmosphere assumes that a custom system module is attempting to be launched. This removes the aforementioned requirement on base content validity; the above procedure is still used to determine how to redirect content, however reads to the "real"/base code file system may return "Not Found" errors if the real/base code file system does not exist.
+
+### NSO Patching
+When an NSO is loaded, Atmosphère's reimplementation will search for IPS patch files on the SD card in the following locations.
+```
+/atmosphere/exefs_patches/<patchset name>/<nso build id>.ips
+```
+
+This organization allows patch sets affecting multiple NSOs to be distributed as a single directory and also allows patches from multiple patch sets to be stacked. Patches will be searched for in each patch set directory. The name of each patch file should match the hexadecimal build ID of the NSO to affect, except that trailing zero bytes may be left off. Because the NSO build ID is unique for every NSO, this means patches will only apply to the files they are meant to apply to.
+
+Patch files are accepted in either IPS format or IPS32 format.
+
+Because NSO files are compressed, patch files are not made between the original version of a compressed NSO and the modified version of such an NSO. Instead, they are made between the uncompressed version of an NSO and the modified (and still uncompressed) version of that NSO. This also means that a patch file cannot be manually applied to the compressed version of an NSO; it must be applied to the uncompressed version. Atmosphère's reimplementation will correctly apply these patches while loading the process regardless of whether the NSO it finds is compressed or not.
+
+When authoring patches, [hactool](https://github.com/SciresM/hactool) can be used to find an NSO's build ID and to uncompress NSOs. Recent versions of the [ReSwitched IDA loaders](https://github.com/reswitched/loaders) can be used to load uncompressed NSOs into IDA in such a way that you can [apply patches to the input file](https://www.hex-rays.com/products/ida/support/idadoc/1618.shtml). From there, any IPS tool can be used to create the patch between the original NSO and the patched NSO. Note that if the NSO you are patching is larger than 16 MiB, you will have to use a tool that supports IPS32.
+
+### Homebrew Support
+Atmosphère provides first class support for [nx-hbloader](https://github.com/switchbrew/nx-hbloader/releases) and [nx-hbmenu](https://github.com/switchbrew/nx-hbmenu/releases).
+
+Launching of the nx-hbloader process is controlled by configurable button inputs. See [here](../../features/configurations.md) for more detailed information.
+
+In addition, loader has extensions to enable homebrew to launch web applets. This normally requires the application launching the applet to have HTML Manual content inside an installed NCA. Atmosphère's reimplementation will automatically ensure that the commands used to check this succeed, and will redirect the relevant file system to the `/atmosphere/hbl_html/` subdirectory.
+
+### IPC Commands
+Atmosphère's reimplementation extends the HIPC loader services' API with several custom commands.
+
+The SwIPC definition for the `ldr:pm` extension commands follows:
+```
+interface ams::ldr::pm::ProcessManagerInterface is ldr:pm {
+  ...
+  [65000] AtmosphereHasLaunchedProgram(ncm::ProgramId program_id) -> sf::Out<bool> out;
+  [65001] AtmosphereGetProgramInfo(ncm::ProgramLocation &loc) -> sf::Out<ProgramInfo> out_program_info, sf::Out<cfg::OverrideStatus> out_status;
+  [65002] AtmospherePinProgram(ncm::ProgramLocation &loc, cfg::OverrideStatus &override_status) -> sf::Out<PinId> out_id;
+}
+```
+
+The SwIPC definition for the `ldr:dmnt` extension commands follows:
+```
+interface ams::ldr::dmnt::DebugMonitorInterface is ldr:dmnt {
+  ...
+  [65000] AtmosphereHasLaunchedProgram(ncm::ProgramId program_id) -> sf::Out<bool> out;
+}
+```
+
+The SwIPC definition for the `ldr:shel` extension commands follows:
+```
+interface ams::ldr::shell::ShellInterface is ldr:shel {
+  ...
+  [65000] AtmosphereRegisterExternalCode(ncm::ProgramId program_id) -> sf::OutMoveHandle out;
+  [65001] AtmosphereUnregisterExternalCode(ncm::ProgramId program_id);
+}
+```

docs/components/modules/ncm.md

@@ -0,0 +1,4 @@
+# ncm
+This module is a reimplementation of the Horizon OS's `ncm` system module, which is responsible for content management.
+
+Atmosphère's reimplementation is currently opt-in only. See [here](../../features/configurations.md) for more information.

docs/components/modules/pgl.md

@@ -0,0 +1,4 @@
+# pgl
+This module is a reimplementation of the Horizon OS's `pgl` system module, which is responsible for launching programs and was introduced by firmware version `10.0.0`.
+
+Currently, Atmosphère's reimplementation doesn't backport this module's functionalities to firmware versions lower than `10.0.0`.

docs/components/modules/pm.md

@@ -0,0 +1,30 @@
+# pm
+This module is a reimplementation of the Horizon OS's `pm` system module, which is responsible for tracking running processes on the system, and managing resource limits.
+
+## Extensions
+Atmosphère extends this module with extra IPC commands and memory restriction changes.
+
+### IPC Commands
+Atmosphère's reimplementation extends the HIPC loader services' API with several custom commands.
+
+The SwIPC definition for the `pm:dmnt` extension commands follows:
+```
+interface ams::pm::dmnt::DebugMonitorServiceBase is pm:dmnt {
+  ...
+  [65000] AtmosphereGetProcessInfo(os::ProcessId process_id) -> sf::OutCopyHandle out_process_handle, sf::Out<ncm::ProgramLocation> out_loc, sf::Out<cfg::OverrideStatus> out_status;
+  [65001] AtmosphereGetCurrentLimitInfo(u32 group, u32 resource) -> sf::Out<s64> out_cur_val, sf::Out<s64> out_lim_val;
+}
+```
+
+The SwIPC definition for the `pm:info` extension commands follows:
+```
+interface ams::pm::info::InformationService is pm:info {
+  ...
+  [65000] AtmosphereGetProcessId(ncm::ProgramId program_id) -> sf::Out<os::ProcessId> out;
+  [65001] AtmosphereHasLaunchedProgram(ncm::ProgramId program_id) -> sf::Out<bool> out;
+  [65002] AtmosphereGetProcessInfo(os::ProcessId process_id) -> sf::Out<ncm::ProgramLocation> out_loc, sf::Out<cfg::OverrideStatus> out_status;
+}
+```
+
+### Extra System Memory
+Atmosphère's reimplementation shrinks the APPLET memory pool by 24 MiB by default, giving this memory to the SYSTEM pool. This allows custom system modules to use more memory without hitting the SYSTEM memory limit.

docs/components/modules/ro.md

@@ -0,0 +1,16 @@
+# ro
+This module is a reimplementation of the Horizon OS's `ro` system module, which is responsible for loading dynamic libraries and was introduced by firmware version `3.0.0`.
+
+Atmosphère's reimplementation backports this module's functionalities to firmware versions lower than `3.0.0` where said functionalities were provided by the `ldr` system module instead.
+
+## Extensions
+Atmosphère extends this module to allow libraries to be patched by files stored on the SD card.
+
+### NRO Patching
+When an NRO is loaded, Atmosphère's reimplementation will search for IPS patch files on the SD card in the following locations.
+```
+/atmosphere/nro_patches/<patchset name>/<nro build id>.ips
+```
+This organization allows patch sets affecting multiple NROs to be distributed as a single directory. Patches will be searched for in each patch set directory. The name of each patch file should match the hexadecimal build ID of the NRO to affect, except that trailing zero bytes may be left off. Because the NRO build ID is unique for every NRO, this means patches will only apply to the files they are meant to apply to.
+
+Patch files are accepted in either IPS format or IPS32 format.

docs/components/modules/sm.md

@@ -0,0 +1,47 @@
+# sm
+This module is a reimplementation of the Horizon OS's `sm` system module, which is responsible for service management.
+
+## Extensions
+Atmosphère extends this module with extra IPC commands and new services.
+
+### Debug Monitor
+Atmosphère's reimplementation provides an interface `sm:dmnt` to allow a debug monitor to query the service manager's state.
+
+The SwIPC definition for `sm:dmnt` follows:
+```
+interface ams::sm::DmntService is sm:dmnt {
+  [65000] AtmosphereGetRecord(ServiceName service) -> sf::Out<ServiceRecord> record;
+  [65001] AtmosphereListRecords(u64 offset) -> sf::OutArray<ServiceRecord> &records, sf::Out<u64> out_count;
+  [65002] AtmosphereGetRecordSize() -> sf::Out<u64> record_size;
+}
+```
+
+### IPC Commands
+Atmosphère's reimplementation extends the HIPC loader services' API with several custom commands.
+
+The SwIPC definition for the `sm:` extension commands follows:
+```
+interface ams::sm::UserService is sm: {
+  ...
+  [65000] AtmosphereInstallMitm(ServiceName service) -> sf::OutMoveHandle srv_h, sf::OutMoveHandle qry_h;
+  [65001] AtmosphereUninstallMitm(ServiceName service);
+  [65002] Deprecated_AtmosphereAssociatePidTidForMitm();
+  [65003] AtmosphereAcknowledgeMitmSession(ServiceName service) -> sf::Out<MitmProcessInfo> client_info, sf::OutMoveHandle fwd_h;
+  [65004] AtmosphereHasMitm(ServiceName service) -> sf::Out<bool> out;
+  [65005] AtmosphereWaitMitm(ServiceName service);
+  [65006] AtmosphereDeclareFutureMitm(ServiceName service);
+  
+  [65100] AtmosphereHasService(ServiceName service) -> sf::Out<bool> out;
+  [65101] AtmosphereWaitService(ServiceName service);
+}
+```
+
+The SwIPC definition for the `sm:m` extension commands follows:
+```
+interface ams::sm::ManagerService is sm:m {
+  ...
+  [65000] AtmosphereEndInitDefers(os::ProcessId process_id, sf::InBuffer &acid_sac, sf::InBuffer &aci_sac);
+  [65001] AtmosphereHasMitm(ServiceName service) -> sf::Out<bool> out;
+  [65002] AtmosphereRegisterProcess(os::ProcessId process_id, ncm::ProgramId program_id, cfg::OverrideStatus override_status, sf::InBuffer &acid_sac, sf::InBuffer &aci_sac);
+}
+```

docs/components/modules/spl.md

@@ -0,0 +1,2 @@
+# spl
+This module is a reimplementation of the Horizon OS's `spl` system module, which is responsible for providing secure platform services such as cryptographic operations.

docs/components/sept.md

@@ -0,0 +1,14 @@
+# sept
+Sept is a payload that facilitates booting Atmosphère when targeting firmware version 7.0.0+.
+
+It consists of a primary and a secondary payload.
+
+## sept-primary
+sept-primary is essentially a stand-in for Nintendo's package1ldr, on 7.0.0+. To use it, the caller (normally fusée-secondary) loads the sept-primary binary to `0x4003F000`, loads the 7.0.0+ TSEC firmware to `0x40010F00`, and loads a signed, encrypted payload to `0x40016FE0`.
+
+This signed, encrypted payload is normally sept-secondary.
+
+## sept-secondary
+sept-secondary is a payload that performs 7.0.0+ key derivation, and then chainloads to `sept/payload.bin`.
+
+It is normally stored encrypted/signed. Therefore, if one wishes to build sept-secondary instead of using release builds, one must bring their own keys.

docs/components/stratosphere.md

@@ -1,10 +1,21 @@
-# Stratosphère
-Stratosphère allows customization of the Horizon OS and Switch kernel. It includes custom sysmodules that extend the kernel and provide new features. It also includes a reimplementation of the loader sysmodules to hook important system actions.
+# stratosphère
+stratosphère provides customization of the Horizon OS at the system level. This includes a reimplementation of several system modules and additional, custom system modules that extend or add a variety of features.
 
-The sysmodules that Stratosphère includes are:
-+ [boot](../modules/boot.md): This module boots the system and initalizes hardware.
-+ [creport](../modules/creport.md): Reimplementation of Nintendo’s crash report system. Dumps all error logs to the SD card instead of saving them to the NAND and sending them to Nintendo.
-+ [fs_mitm](../modules/fs_mitm.md): This module can log, deny, delay, replace, and redirect any request made to the File System.
-+ [loader](../modules/loader.md): Enables modifying the code of binaries that are not stored inside the kernel.
-+ [pm](../modules/pm.md): Reimplementation of Nintendo’s Process Manager.
-+ [sm](../modules/sm.md): Reimplementation of Nintendo’s Service Manager.
+## Modules
+The modules currently provided by stratosphère are:
++ [ams_mitm](modules/ams_mitm.md)
++ [boot](modules/boot.md)
++ [boot2](modules/boot2.md)
++ [creport](modules/creport.md)
++ [dmnt](modules/dmnt.md)
++ [eclct.stub](modules/eclct.stub.md)
++ [erpt](modules/erpt.md)
++ [fatal](modules/fatal.md)
++ [jpegdec](modules/jpegdec.md)
++ [loader](modules/loader.md)
++ [ncm](modules/ncm.md)
++ [pgl](modules/pgl.md)
++ [pm](modules/pm.md)
++ [ro](modules/ro.md)
++ [sm](modules/sm.md)
++ [spl](modules/spl.md)

docs/components/thermosphere.md

@@ -1,6 +1,3 @@
-# Thermosphère
-Thermosphère is a hypervisor based implementation of emuNAND. An emuNAND is a copy of the firmware on the Switch’s internal memory (sysNAND), and is typically installed on an external SD Card.
-
-An emuNAND operates completely independently of the sysNAND. This allows one to make or test various modifications and homebrew safely without needing to restore their NAND backup afterwards by testing things on the emuNAND, and switching back to the sysNAND when finished. In the case of past Nintendo systems such as the 3DS, an emuNAND could also be used to update your system to the latest firmware while keeping your sysNAND on a lower version, however this may be more difficult to do on the Switch due to Nintendo using efuse technology for major system updates.
-
-Thermosphère is currently planned to be included in the 1.0 release of Atmosphère.
+# thermosphère
+thermosphère is a work in progress hypervisor implementation.
+This aims to provide functionality at the EL2 level which remains unused by the Horizon OS.

docs/components/troposphere.md

@@ -1,2 +1,5 @@
-# Troposphère
-Troposphère contains various application-level modifications to the OS, such as launching homebrew directly from the homemenu or executing cheat/gameshark codes, similar to Luma3DS. Troposphère is not yet implemented in Atmosphère.
+# troposphère
+troposphère provides customization of the Horizon OS at the application level.
+
+## reboot_to_payload
+Sample application to perform a system reboot into a payload of choice.

docs/features/cheats.md

@@ -6,25 +6,24 @@ By default, Atmosphère will do the following when deciding whether to attach to
 
 + Retrieve information about the new application process from `pm` and `loader`.
 + Check whether a user-defined key combination is held, and stop if not.
-  + This defaults to "L is not held", and can be configured the same way as `fs.mitm` override keys.
+  + This defaults to "L is not held", but can be configured with override keys.
   + The ini key to configure this is `cheat_enable_key`.
 + Check whether the process is a real application, and stop if not.
-  + This guards against applying cheat codes to the homebrew loader.
-+ Attempt to load cheats from `atmosphere/titles/<title_id>/cheats/<build_id>.txt`, where `build_id` is the hexadecimal representation of the first 8 bytes of the application's main executable's build id.
+  + This guards against applying cheat codes to the Homebrew Loader.
++ Attempt to load cheats from `/atmosphere/contents/<program_id>/cheats/<build_id>.txt`, where `build_id` is the hexadecimal representation of the first 8 bytes of the application's main executable's build id.
   + If no cheats are found, then the cheat manager will stop.
 + Open a kernel debug session for the new application process.
 + Signal to a system event that a new cheat process has been attached to.
 
 This behavior ensures that cheat codes are only loaded when the user would want them to.
 
-In cases where dmnt has not activated the cheat manager, but the user wants to make it do so anyway, the cheat manager's service API provides a `ForceOpenCheatProcess` command that homebrew can use. This command will cause the cheat manager to try to force itself to attach to the process.
+In cases where `dmnt` has not activated the cheat manager, but the user wants to make it do so anyway, the cheat manager's service API provides a `ForceOpenCheatProcess` command that homebrew can use. This command will cause the cheat manager to try to force itself to attach to the process.
 
-By default, all cheat codes listed in the loaded .txt file will be toggled on. This is configurable by the user, and the default can be set to toggled off by editing the `atmosphere!dmnt_cheats_enabled_by_default` entry to 0 instead of 1.
+By default, all cheat codes listed in the loaded .txt file will be toggled on. This is configurable by the user by editing the `atmosphere!dmnt_cheats_enabled_by_default` [system setting](configurations.md).
 
 Users may use homebrew programs to toggle cheats on and off at runtime via the cheat manager's service API.
 
 ## Cheat Code Compatibility
-
 Atmosphère manages cheat code through the execution of a small, custom virtual machine. Care has been taken to ensure that Atmosphère's cheat code format is fully backwards compatible with the pre-existing cheat code format, though new features have been added and bugs in the pre-existing cheat code applier have been fixed. Here is a short summary of the changes from the pre-existing format:
 
 + A number of bugs were fixed in the processing of conditional instructions.
@@ -37,21 +36,18 @@ Atmosphère manages cheat code through the execution of a small, custom virtual
 + The pre-existing implementation did not correctly synchronize with the application process, and thus would cause heavy lag under certain circumstances (especially around loading screens). This has been fixed in Atmosphère's implementation.
 
 ## Cheat Code Format
-
 The following provides documentation of the instruction format for the virtual machine used to manage cheat codes.
 
 Typically, instruction type is encoded in the upper nybble of the first instruction u32.
 
 ### Code Type 0: Store Static Value to Memory
-
 Code type 0 allows writing a static value to a memory address.
 
 #### Encoding
-
 `0TMR00AA AAAAAAAA VVVVVVVV (VVVVVVVV)`
 
-+ T: width of memory write (1, 2, 4, or 8 bytes)
-+ M: memory region to write to (0 = Main NSO, 1 = Heap)
++ T: Width of memory write (1, 2, 4, or 8 bytes).
++ M: Memory region to write to (0 = Main NSO, 1 = Heap).
 + R: Register to use as an offset from memory region base.
 + A: Immediate offset to use from memory region base.
 + V: Value to write.
@@ -59,23 +55,20 @@ Code type 0 allows writing a static value to a memory address.
 ---
 
 ### Code Type 1: Begin Conditional Block
-
 Code type 1 performs a comparison of the contents of memory to a static value.
 
 If the condition is not met, all instructions until the appropriate conditional block terminator are skipped.
 
 #### Encoding
-
 `1TMC00AA AAAAAAAA VVVVVVVV (VVVVVVVV)`
 
-+ T: width of memory write (1, 2, 4, or 8 bytes)
-+ M: memory region to write to (0 = Main NSO, 1 = Heap)
++ T: Width of memory write (1, 2, 4, or 8 bytes).
++ M: Memory region to write to (0 = Main NSO, 1 = Heap).
 + C: Condition to use, see below.
 + A: Immediate offset to use from memory region base.
 + V: Value to compare to.
 
 #### Conditions
-
 + 1: >
 + 2: >=
 + 3: <
@@ -86,28 +79,23 @@ If the condition is not met, all instructions until the appropriate conditional
 ---
 
 ### Code Type 2: End Conditional Block
-
 Code type 2 marks the end of a conditional block (started by Code Type 1 or Code Type 8).
 
 #### Encoding
-
 `20000000`
 
 ---
 
 ### Code Type 3: Start/End Loop
-
 Code type 3 allows for iterating in a loop a fixed number of times.
 
 #### Start Loop Encoding
-
 `300R0000 VVVVVVVV`
 
 + R: Register to use as loop counter.
 + V: Number of iterations to loop.
 
 #### End Loop Encoding
-
 `310R0000`
 
 + R: Register to use as loop counter.
@@ -115,11 +103,9 @@ Code type 3 allows for iterating in a loop a fixed number of times.
 ---
 
 ### Code Type 4: Load Register with Static Value
-
 Code type 4 allows setting a register to a constant value.
 
 #### Encoding
-
 `400R0000 VVVVVVVV VVVVVVVV`
 
 + R: Register to use.
@@ -128,38 +114,33 @@ Code type 4 allows setting a register to a constant value.
 ---
 
 ### Code Type 5: Load Register with Memory Value
-
 Code type 5 allows loading a value from memory into a register, either using a fixed address or by dereferencing the destination register.
 
 #### Load From Fixed Address Encoding
-
 `5TMR00AA AAAAAAAA`
 
-+ T: width of memory read (1, 2, 4, or 8 bytes)
-+ M: memory region to write to (0 = Main NSO, 1 = Heap)
++ T: Width of memory read (1, 2, 4, or 8 bytes).
++ M: Memory region to write to (0 = Main NSO, 1 = Heap).
 + R: Register to load value into.
 + A: Immediate offset to use from memory region base.
 
 #### Load from Register Address Encoding
-
 `5TMR10AA AAAAAAAA`
 
-+ T: width of memory read (1, 2, 4, or 8 bytes)
-+ M: memory region to write to (0 = Main NSO, 1 = Heap)
++ T: Width of memory read (1, 2, 4, or 8 bytes).
++ M: Memory region to write to (0 = Main NSO, 1 = Heap).
 + R: Register to load value into.
 + A: Immediate offset to use from register R.
 
 ---
 
 ### Code Type 6: Store Static Value to Register Memory Address
-
 Code type 6 allows writing a fixed value to a memory address specified by a register.
 
 #### Encoding
-
 `6T0RIor0 VVVVVVVV VVVVVVVV`
 
-+ T: width of memory write (1, 2, 4, or 8 bytes)
++ T: Width of memory write (1, 2, 4, or 8 bytes).
 + R: Register used as base memory address.
 + I: Increment register flag (0 = do not increment R, 1 = increment R by T).
 + o: Offset register enable flag (0 = do not add r to address, 1 = add r to address).
@@ -169,22 +150,19 @@ Code type 6 allows writing a fixed value to a memory address specified by a regi
 ---
 
 ### Code Type 7: Legacy Arithmetic
-
 Code type 7 allows performing arithmetic on registers.
 
 However, it has been deprecated by Code type 9, and is only kept for backwards compatibility.
 
 #### Encoding
-
 `7T0RC000 VVVVVVVV`
 
-+ T: width of arithmetic operation (1, 2, 4, or 8 bytes)
++ T: Width of arithmetic operation (1, 2, 4, or 8 bytes).
 + R: Register to apply arithmetic to.
 + C: Arithmetic operation to apply, see below.
 + V: Value to use for arithmetic operation.
 
 #### Arithmetic Types
-
 + 0: Addition
 + 1: Subtraction
 + 2: Multiplication
@@ -194,11 +172,9 @@ However, it has been deprecated by Code type 9, and is only kept for backwards c
 ---
 
 ### Code Type 8: Begin Keypress Conditional Block
-
 Code type 8 enters or skips a conditional block based on whether a key combination is pressed.
 
 #### Encoding
-
 `8kkkkkkk`
 
 + k: Keypad mask to check against, see below.
@@ -206,7 +182,6 @@ Code type 8 enters or skips a conditional block based on whether a key combinati
 Note that for multiple button combinations, the bitmasks should be ORd together.
 
 #### Keypad Values
-
 Note: This is the direct output of `hidKeysDown()`.
 
 + 0000001: A
@@ -239,31 +214,27 @@ Note: This is the direct output of `hidKeysDown()`.
 ---
 
 ### Code Type 9: Perform Arithmetic
-
 Code type 9 allows performing arithmetic on registers.
 
 #### Register Arithmetic Encoding
-
 `9TCRS0s0`
 
-+ T: width of arithmetic operation (1, 2, 4, or 8 bytes)
++ T: Width of arithmetic operation (1, 2, 4, or 8 bytes).
 + C: Arithmetic operation to apply, see below.
 + R: Register to store result in.
 + S: Register to use as left-hand operand.
 + s: Register to use as right-hand operand.
 
 #### Immediate Value Arithmetic Encoding
-
 `9TCRS100 VVVVVVVV (VVVVVVVV)`
 
-+ T: width of arithmetic operation (1, 2, 4, or 8 bytes)
++ T: Width of arithmetic operation (1, 2, 4, or 8 bytes).
 + C: Arithmetic operation to apply, see below.
 + R: Register to store result in.
 + S: Register to use as left-hand operand.
 + V: Value to use as right-hand operand.
 
 #### Arithmetic Types
-
 + 0: Addition
 + 1: Subtraction
 + 2: Multiplication
@@ -278,14 +249,12 @@ Code type 9 allows performing arithmetic on registers.
 ---
 
 ### Code Type 10: Store Register to Memory Address
-
 Code type 10 allows writing a register to memory.
 
 #### Encoding
-
 `ATSRIOxa (aaaaaaaa)`
 
-+ T: width of memory write (1, 2, 4, or 8 bytes)
++ T: Width of memory write (1, 2, 4, or 8 bytes).
 + S: Register to write to memory.
 + R: Register to use as base address.
 + I: Increment register flag (0 = do not increment R, 1 = increment R by T).
@@ -294,23 +263,21 @@ Code type 10 allows writing a register to memory.
 + a: Value used as offset when O is 2, 4 or 5.
 
 #### Offset Types
-
 + 0: No Offset
 + 1: Use Offset Register
 + 2: Use Fixed Offset
 + 3: Memory Region + Base Register
 + 4: Memory Region + Relative Address (ignore address register)
 + 5: Memory Region + Relative Address + Offset Register
+
 ---
 
 ### Code Type 11: Reserved
-
 Code Type 11 is currently reserved for future use.
 
 ---
 
 ### Code Type 12-15: Extended-Width Instruction
-
 Code Types 12-15 signal to the VM to treat the upper two nybbles of the first dword as instruction type, instead of just the upper nybble.
 
 This reserves an additional 64 opcodes for future use.
@@ -318,13 +285,11 @@ This reserves an additional 64 opcodes for future use.
 ---
 
 ### Code Type 0xC0: Begin Register Conditional Block
-
 Code type 0xC0 performs a comparison of the contents of a register and another value. This code support multiple operand types, see below.
 
 If the condition is not met, all instructions until the appropriate conditional block terminator are skipped.
 
 #### Encoding
-
 ```
 C0TcSX##
 C0TcS0Ma aaaaaaaa
@@ -335,19 +300,18 @@ C0TcS400 VVVVVVVV (VVVVVVVV)
 C0TcS5X0
 ```
 
-+ T: width of memory write (1, 2, 4, or 8 bytes)
++ T: Width of memory write (1, 2, 4, or 8 bytes).
 + c: Condition to use, see below.
-+ S: Source Register
++ S: Source Register.
 + X: Operand Type, see below.
-+ M: Memory Type (operand types 0 and 1)
-+ R: Address Register (operand types 2 and 3)
-+ a: Relative Address (operand types 0 and 2)
-+ r: Offset Register (operand types 1 and 3)
-+ X: Other Register (used for operand type 5)
-+ V: Value to compare to (operand type 4)
++ M: Memory Type (operand types 0 and 1).
++ R: Address Register (operand types 2 and 3).
++ a: Relative Address (operand types 0 and 2).
++ r: Offset Register (operand types 1 and 3).
++ X: Other Register (operand type 5).
++ V: Value to compare to (operand type 4).
 
 #### Operand Type
-
 + 0: Memory Base + Relative Offset
 + 1: Memory Base + Offset Register
 + 2: Register + Relative Offset
@@ -356,10 +320,109 @@ C0TcS5X0
 + 5: Other Register
 
 #### Conditions
-
 + 1: >
 + 2: >=
 + 3: <
 + 4: <=
 + 5: ==
 + 6: !=
+
+---
+
+### Code Type 0xC1: Save or Restore Register
+Code type 0xC1 performs saving or restoring of registers.
+
+#### Encoding
+`C10D0Sx0`
+
++ D: Destination index.
++ S: Source index.
++ x: Operand Type, see below.
+
+#### Operand Type
++ 0: Restore register
++ 1: Save register
++ 2: Clear saved value
++ 3: Clear register
+
+---
+
+### Code Type 0xC2: Save or Restore Register with Mask
+Code type 0xC2 performs saving or restoring of multiple registers using a bitmask.
+
+#### Encoding
+`C2x0XXXX`
+
++ x: Operand Type, see below.
++ X: 16-bit bitmask, bit i == save or restore register i.
+
+#### Operand Type
++ 0: Restore register
++ 1: Save register
++ 2: Clear saved value
++ 3: Clear register
+
+---
+
+### Code Type 0xC3: Read or Write Static Register
+Code type 0xC3 reads or writes a static register with a given register.
+
+#### Encoding
+`C3000XXx`
+
++ XX: Static register index, 0x00 to 0x7F for reading or 0x80 to 0xFF for writing.
++ x: Register index.
+
+---
+
+### Code Type 0xF0: Double Extended-Width Instruction
+Code Type 0xF0 signals to the VM to treat the upper three nybbles of the first dword as instruction type, instead of just the upper nybble.
+
+This reserves an additional 16 opcodes for future use.
+
+---
+
+### Code Type 0xFF0: Pause Process
+Code type 0xFF0 pauses the current process.
+
+#### Encoding
+`FF0?????`
+
+---
+
+### Code Type 0xFF1: Resume Process
+Code type 0xFF1 resumes the current process.
+
+#### Encoding
+`FF1?????`
+
+---
+
+### Code Type 0xFFF: Debug Log
+Code type 0xFFF writes a debug log to the SD card under the folder `/atmosphere/cheat_vm_logs/`.
+
+#### Encoding
+```
+FFFTIX##
+FFFTI0Ma aaaaaaaa
+FFFTI1Mr
+FFFTI2Ra aaaaaaaa
+FFFTI3Rr
+FFFTI4X0
+```
+
++ T: Width of memory write (1, 2, 4, or 8 bytes).
++ I: Log id.
++ X: Operand Type, see below.
++ M: Memory Type (operand types 0 and 1).
++ R: Address Register (operand types 2 and 3).
++ a: Relative Address (operand types 0 and 2).
++ r: Offset Register (operand types 1 and 3).
++ X: Value Register (operand type 4).
+
+#### Operand Type
++ 0: Memory Base + Relative Offset
++ 1: Memory Base + Offset Register
++ 2: Register + Relative Offset
++ 3: Register + Offset Register
++ 4: Register Value

docs/features/configurations.md

@@ -0,0 +1,153 @@
+# Configurations
+Atmosphère provides a variety of customizable configurations to better adjust to users' needs.
+
+## BCT.ini
+This is the configuration file used by fusée.
+This file is located under the `/atmosphere/config/` folder on your SD card and a default template can be found inside the `/atmosphere/config_templates/` folder.
+
+### Adding a Custom Boot Splashscreen
+Atmosphère provides its own default splashscreen which is displayed at boot time. However, this can be replaced at will.
+
+The boot splashscreen must be a BMP file, it must be 720x1280 (1280x720 rotated 90 degrees left/counterclockwise/anti-clockwise) resolution, and be in 32-bit ARGB format. You can use image editing software such as GIMP or Photoshop to export the image in this format.
+ 
+Add the following lines to BCT.ini and change the value of `custom_splash` to the actual path and filename of your boot splashscreen:
+```
+[stage2]
+custom_splash = /path/to/your/bootlogo.bmp
+```
+
+### Configuring "nogc" Protection
+"nogc" is a feature provided by fusée-secondary which disables the Nintendo Switch's Game Card reader. Its purpose is to prevent the reader from being updated when the console has been updated, without burning fuses, from a lower firmware version. More specifically, from firmware versions 4.0.0 or 9.0.0 which introduced updates to the Game Card reader's firmware. By default, Atmosphère will protect the Game Card reader automatically, but you are free to change it.
+
+To change its functionality, add the following line to the `stratosphere` section and change the value of `X` according to the following list:
+```
+[stratosphere]
+nogc = X
+```
+```
+1 = force-enable nogc, so Atmosphère will always disable the Game Card reader.
+0 = force-disable nogc, so Atmosphère will always enable the Game Card reader.
+```
+
+### NCM opt-in
+Atmosphère provides a reimplementation of the [ncm](../components/modules/ncm.md) system module, but currently this is not enabled by default. If you wish to enable this reimplementation add the following line to the `stratosphere` section:
+```
+[stratosphere]
+enable_ncm = 1
+```
+
+### Logging
+This is an advanced feature aimed at developers trying to debug boot time issues. It enables logging of the fusée stages to be displayed on screen.
+
+Add the following lines to BCT.ini and change the value of `X` according to the following list:
+```
+[config]
+log_level = X
+```
+```
+0 = NONE
+1 = ERROR
+2 = WARNING
+3 = MANDATORY
+4 = INFO
+5 = DEBUG
+```
+
+A special level is also provided to prevent prefix creation. To use it, do a bitwise OR with this mask:
+`0x100 = NO_PREFIX`
+
+## emummc.ini
+This is the configuration file used for the [emummc](../components/emummc.md) component.
+This file is located under the `/emuMMC/` folder on your SD card.
+
+Please refer to the project's repository [here](https://github.com/m4xw/emuMMC) for detailed instructions and documentation.
+
+## exosphere.ini
+This is the configuration file used by exosphère.
+This file is located in the root of your SD card and a default template can be found inside the `/atmosphere/config_templates/` folder.
+
+### Configuring Debugging Modes
+By default, Atmosphère signals to the Horizon kernel that debugging is enabled while leaving usermode debugging disabled, but this can cause undesirable side-effects. If you wish to change this behavior, go to the `exosphere` section and change the value of `X` according to the following list.
+```
+[exosphere]
+debugmode = X
+debugmode_user = X
+```
+```
+1 = enable
+0 = disable
+```
+
+### Blanking PRODINFO
+Atmosphère provides a way for users to blank their factory installed calibration data (known as PRODINFO) in either emulated or system eMMC environments. You can find more detailed information on this inside the respective template file. Usage of this configuration is not encouraged.
+
+## override_config.ini
+This file is located under the `/atmosphere/config/` folder on your SD card and a default template can be found inside the `/atmosphere/config_templates/` folder.
+
+### Overrides Format
+Overrides are parsed from the `/atmosphere/config/override_config.ini` file during the boot process.
+
+By default `override_config.ini` is not configured. It can be used to select the behavior of certain buttons and bind them to functionalities such as launching the Homebrew Menu or enabling the cheat code manager.
+
+You can modify the override_key entries in `override_config.ini` with this list of valid buttons:
+| Formal Name | .ini Name |
+| ----------- | --------- |
+| A Button    | A         |
+| B Button    | B         |
+| X Button    | X         |
+| Y Button    | Y         |
+| Left Stick  | LS        |
+| Right Stick | RS        |
+| L Button    | L         |
+| R Button    | R         |
+| ZL Button   | ZL        |
+| ZR Button   | ZR        |
+| + Button    | PLUS      |
+| - Button    | MINUS     |
+| Left Dpad   | DLEFT     |
+| Up Dpad     | DUP       |
+| Right Dpad  | DRIGHT    |
+| Down Dpad   | DDOWN     |
+| SL Button   | SL        |
+| SR Button   | SR        |
+
+To invert the behavior of the override key, place an exclamation point in front of whatever button you wish to use. It will launch the actual game while holding down that button, instead of going into the Homebrew Menu. For example, `override_key=!R` will run the game only while holding down R when launching it, otherwise it will boot into the Homebrew Menu. Afterwards you may reinsert your SD card into your Switch and boot into Atmosphère as you normally would. You should now be able to boot into the Homebrew Menu by launching your designated program of choice.
+
+## system_settings.ini
+This file is located under the `/atmosphere/config/` folder on your SD card and a default template can be found inside the `/atmosphere/config_templates/` folder.
+
+### Settings Format
+Atmosphère provides a way to override the firmware debug settings used by the system. These can be parsed from the `/atmosphere/config/system_settings.ini` file during the boot process. This file is a normal ini file, with some specific interpretations.
+
+The standard representation of a setting's identifier takes the form `name!key`. This is represented within `system_settings.ini` as a section `name`, with an entry `key`. For example:
+```
+[name]
+key = ...
+```
+
+Settings can have variable types (strings, integral values, byte arrays, etc). To accommodate this, `system_settings.ini` must store values as a `type_identifier!value_store` pair. A number of different types are supported, with identifiers detailed below.
+Please note that a malformed value string will cause a fatal error to occur on boot. A full example of a custom setting is given below (setting `eupld!upload_enabled = 0`), for posterity:
+```
+[eupld]
+upload_enabled = u8!0x0
+```
+
+#### Supported Types
+* Strings
+    * Type identifiers: `str`, `string`
+    * The value string is used directly as the setting, with null terminator appended.
+* Integral types
+    * Type identifiers: `u8`, `u16`, `u32`, `u64`
+    * The value string is parsed via a call to `strtoul(value, NULL, 0)`.
+    * Setting bitwidth is determined by the identifier (8 for 1 byte, 16 for 2 bytes, and so on).
+* Raw bytes
+    * Type identifiers: `hex`, `bytes`
+    * The value string is parsed as a hexadecimal string.
+        * The value string must be of even length, or a fatal error will be thrown on parse.
+
+## Content Specific Flags
+Atmosphère supports customizing CFW behavior based on the presence of `flags` on the SD card.
+
+The following flags are supported on a per-program basis, by placing `<flag_name>.flag` inside `/atmosphere/contents/<program_id>/flags/`:
++ `boot2`, which indicates that the program should be launched during the `boot2` process.
++ `redirect_save`, which indicates that the program wants its savedata to be redirected to the SD card.

docs/flags.md

@@ -1,12 +0,0 @@
-# Flags
-Atmosphère supports customizing CFW behavior based on the presence of `flags` on the SD card.
-
-The following flags are supported on a per-title basis, by placing `<flag_name>.flag` inside `/atmosphere/titles/<title_id>/flags/`:
-+ `boot2`, which indicates to PM that the title should be launched during the `boot2` process.
-+ `fsmitm`, which indicates that `fs.mitm` should override contents for the title even if it otherwise wouldn't.
-+ `fsmitm_disable`, which indicates that `fs.mitm` should not override contents for the title, even it it otherwise would.
-+ `bis_write`, which indicates that `fs.mitm` should allow the title to write to BIS partitions.
-+ `cal_read`, which indicates that `fs.mitm` should allow the title to read the CAL0/PRODINFO partition.
-
-The following global flags are supported, by placing `<flag name>.flag` inside `/atmosphere/flags/`:
-+ `hbl_bis_write` and `hbl_cal_read` enable the BIS write and CAL0 read functionality for HBL, without needing to specify its title id.

docs/licensing_exemptions/MIT_LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018-2020 Atmosphère-NX
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

docs/main.md

@@ -1,29 +1,30 @@
 # Atmosphère
-Atmosphère is a work-in-progress customized firmware for the Nintendo Switch. Atmosphère consists of several different components, each in charge of performing different system functions of the Nintendo Switch.
+Atmosphère is a work-in-progress customized firmware for the Nintendo Switch. Its design principle consists of a multi-layered approach where each layer replaces/modifies a different component of the Nintendo Switch's system.
 
-The components of Atmosphère are:
-+ [Fusée](../docs/components/fusee/fusee.md), a custom bootloader.
-+ [Exosphère](../docs/components/exosphere.md), a fully-featured custom secure monitor.
-+ [Stratosphère](../docs/components/stratosphere.md), a set of custom system modules.
-+ [Thermosphère](../docs/components/thermosphere.md), a hypervisor-based emuNAND implementation. This component has not been implemented yet.
-+ [Troposphère](../docs/components/troposphere.md), Application-level patches to the Horizon OS. This component has also not been implemented yet.
+## Components
+Atmosphère provides six core components, mimicking to some degree the various layers of the Earth's atmosphere:
++ [fusée](components/fusee.md)
++ [exosphère](components/exosphere.md)
++ [thermosphère](components/thermosphere.md)
++ [mesosphère](components/mesosphere.md)
++ [stratosphère](components/stratosphere.md)
++ [troposphère](components/troposphere.md)
 
-### Modules
-The Stratosphère component of Atmosphère contains various modules. These have a `.kip` extension. They provide custom features, extend existing features, or replace Nintendo sysmodules.
+Additionally, Atmosphère also provides the following secondary components:
++ [emummc](components/emummc.md)
++ [sept](components/sept.md)
++ [libraries](components/libraries.md)
 
-Stratosphère's modules include:
-+ [boot](../docs/modules/boot.md)
-+ [creport](../docs/modules/creport.md)
-+ [fs_mitm](../docs/modules/fs_mitm.md)
-+ [loader](../docs/modules/loader.md)
-+ [pm](../docs/modules/pm.md)
-+ [sm](../docs/modules/sm.md)
+## Features
+Atmosphère provides several original features which add or expand functionalities for the customized firmware environment:
++ [Cheats](features/cheats.md)
++ [Configurations](features/configurations.md)
 
-### Building Atmosphère
-A guide to building Atmosphère can be found [here](../docs/building.md).
+## Building Atmosphère
+A guide to building Atmosphère can be found [here](building.md).
 
-### Upcoming Features
-A list of planned features for Atmosphère can be found [here](../docs/roadmap.md).
+## Upcoming Features
+A list of planned features for Atmosphère can be found [here](roadmap.md).
 
-### Release History
-A changelog of previous versions of Atmosphère can be found [here](../docs/changelog.md).
+## Release History
+A changelog of previous versions of Atmosphère can be found [here](changelog.md).

docs/modules/boot.md

@@ -1,2 +0,0 @@
-# boot
-The boot module is responsible for booting the system and initalizing hardware. A second boot module known as boot2 is integrated with the [pm (process manager)](../modules/pm.md) sysmodule in Atmosphère, and launches other processes.

docs/modules/creport.md

@@ -1,2 +0,0 @@
-# creport
-creport is a reimplementation of Nintendo's crash reporter. Atmosphère's creport catches all error logs that would have been saved to the NAND and instead saves them to the SD card for debugging purposes. This is helpful because the errors no longer go to Nintendo and developers of homebrew can still see the errors to help with the debugging process. creport catches system errors, game crashes, and homebrew crashes.

docs/modules/dmnt.md

@@ -1,38 +0,0 @@
-# dmnt
-
-dmnt is a reimplementation of Nintendo's debug monitor. It provides Atmosphère a rich set of debugging functionality, so that users can easily analyze the behaviors of programs. In addition, Atmosphère implements an extension in dmnt to provide cheat code functionality.
-
-## Atmosphère Cheat Extension
-
-In addition to the functionality provided by Nintendo's debug monitor, Atmosphère's dmnt has an extension for providing cheat code functionality. A HIPC Service API is provided for interacting with the cheat code manager, through the service `dmnt:cht`.
-
-Those looking for more information on the cheat code functionality may wish to read `cheats.md`.
-
-The SwIPC definition for `dmnt:cht` follows.
-```
-interface DmntCheatService is dmnt:cht {
-  [65000] HasCheatProcess() -> bool;
-  [65001] GetCheatProcessEvent() -> KObject;
-  [65002] GetCheatProcessMetadata() -> CheatProcessMetadata;
-  [65003] ForceOpenCheatProcess();
-
-  [65100] GetCheatProcessMappingCount() -> u64;
-  [65101] GetCheatProcessMappings(u64 offset) -> buffer<MemoryInfo, 6>, u64 count;
-  [65102] ReadCheatProcessMemory(u64 address, u64 size) -> buffer<u8, 6> data;
-  [65103] WriteCheatProcessMemory(u64 address, u64 size, buffer<u8, 5> data);
-  [65104] QueryCheatProcessMemory(u64 address) -> MemoryInfo;
-
-  [65200] GetCheatCount() -> u64;
-  [65201] GetCheats(u64 offset) -> buffer<CheatEntry, 6>, u64 count;
-  [65202] GetCheatById(u32 cheat_id) -> buffer<CheatEntry, 6> cheat;
-  [65203] ToggleCheat(u32 cheat_id);
-  [65204] AddCheat(buffer<CheatDefinition, 5> cheat, bool enabled) -> u32 cheat_id;
-  [65203] RemoveCheat(u32 cheat_id);
-
-  [65300] GetFrozenAddressCount() -> u64;
-  [65301] GetFrozenAddresses(u64 offset) -> buffer<FrozenAddressEntry, 6>, u64 count;
-  [65302] GetFrozenAddress(u64 address) -> FrozenAddressEntry;
-  [65303] EnableFrozenAddress(u64 address, u64 width) -> u64 value;
-  [65304] DisableFrozenAddress(u64 address);
-}
-```

docs/modules/fs_mitm.md

@@ -1,2 +0,0 @@
-# fs_mitm
-fs_mitm is a sysmodule that enables intercepting file system operations. This module can log, deny, delay, replace, or redirect any request made to the filesystem. It enables LayeredFS to function, which allows for replacement of game assets.

docs/modules/loader.md

@@ -1,126 +0,0 @@
-# loader
-
-loader is a reimplementation of the loader sysmodule. This module is responsible for creating processes from executable NSO images and registering their access control with the kernel, sm, and fs.
-
-## Atmosphère Extensions
-
-Atmosphère extends this module to allow executables to be replaced or patched by files stored on the SD card. Note that a few services are required for SD card access and therefore cannot be replaced or patched in this manner. This includes psc, bus, and pcv.
-
-### Exefs Replacement
-
-TODO: details on buttons affecting this.
-
-When a process is created, loader will search for several NSO filenames in the title's exefs directory.
-These filenames are, in this order:
-
-  - rtld
-  - main
-  - subsdk0
-  - subsdk1
-  - ...
-  - subsdk9
-  - sdk
-
-Each NSO that is found will be loaded into the process contiguously. The process's entrypoint is at the first NSO to be loaded, usually `rtld` or `main`.
-
-Additionally, when a process is loaded, loader will search for a `main.npdm` file in the exefs directory specifying the title's permissions.
-
-Atmosphère extends this functionality by also searching for these files on the SD card. When searching for a file, loader will first check if it exists on the SD card. If it does, that file will be used instead. Otherwise, it will use the copy located in the exefs, if that is present. The following directory will be searched.
-
-```
-sdmc:/atmosphere/titles/<title id>/exefs/
-```
-
-This allows the replacement of applets, sysmodules, or even games with homebrew versions.
-
-In order to prevent an NSO from being loaded even if it exists in the exefs, loader will also check if a stub file exists. If such a file exists, the NSO will not be loaded. The files should be named like `rtld.stub`, `main.stub`, etc. and may be empty.
-
-### NSO Patching
-
-TODO: details on buttons affecting this.
-
-When an NSO is loaded, the stratosphere implementatin of loader will search for IPS patch files on the SD card in the following locations.
-```
-sdmc:/atmosphere/exefs_patches/<patchset name>/<nso build id>.ips
-```
-This organization allows patchsets affecting multiple NSOs to be distributed as a single directory. Patches will be searched for in each patchset directory. The name of each patch file should match the hexadecimal build ID of the NSO to affect, except that trailing zero bytes may be left off. Because the NSO build ID is unique for every NSO, this means patches will only apply to the files they are meant to apply to.
-
-Patch files are accepted in either IPS format or IPS32 format.
-
-Because NSO files are compressed, patch files are not made between the original version of a compressed NSO and the modified version of such an NSO. Instead, they are made between the uncompressed version of an NSO and the modified (and still uncompressed) version of that NSO. This also means that a patch file cannot be manually applied to the compressed version of an NSO; it must be applied to the uncompressed version. The Stratosphere implementation of loader will correctly apply these patches while loading the process regardless of whether the NSO it finds is compressed or not.
-
-When authoring patches, [hactool](https://github.com/SciresM/hactool) can be used to find an NSO's build ID and to uncompress NSOs. Recent versions of the [ReSwitched IDA loaders](https://github.com/reswitched/loaders) can be used to load uncompressed NSOs into IDA in such a way that you can [apply patches to the input file](https://www.hex-rays.com/products/ida/support/idadoc/1618.shtml). From there, any IPS tool can be used to create the patch between the original NSO and the patched NSO. Note that if the NSO you are patching is larger than 16 MiB, you will have to use a tool that supports IPS32.
-
-### HBL Support
-
-Atmosphère can use the loader module in order to turn any game on your Switch's home menu into a launchpoint for the Homebrew Menu, rather than launching it through the album applet. This allows one to launch the Homebrew Menu with access to the ~3.2GB of RAM that the Switch reserves for games and applications, as opposed to the 442MB of RAM we are limited to when launching the Homebrew Menu from the album. This also means that it is no longer necessary to install homebrew as `.nsp` files on your Switch so long as you are using this method, as the only reason to do so is to allow the homebrew to access all of the Switch's available memory.
-
-In order to setup this method you will need the latest release of [hbmenu](https://github.com/switchbrew/nx-hbmenu/releases), and the latest release of [hbloader](https://github.com/switchbrew/nx-hbloader/releases). Place `hbmenu.nro` on the root of your Switch's SD Card, and place `hbl.nsp` in the atmosphere folder. From there, simply launch any title while holding the button specified in `loader.ini`.
-
-In addition, loader has extensions to enable homebrew to launch web applets. This normally requires the application launching the applet have HTML Manual content inside an installed NCA; Atmosphère's loader will automatically ensure that the commands used to check this succeed, and will (in tandem with `fs.mitm`) redirect the relevant filesystem to the `sdmc:/atmosphere/hbl_html/` subdirectory.
-
-### Button Overrides
-
-By default `loader.ini` is configured to launch the Homebrew Menu when launching any game while holding down the override key (defaults to R). If you wish to change this, you can modify the override_key section of `loader.ini`. Alternatively, if you would like to only allow hbmenu on a specific app, configure `loader.ini` in the atmosphere folder by replacing the Title ID in the ini (title_id in the [hbl_config] section, it is the Title ID for the album by default) with the Title ID of whatever game you wish to use to launch the Homebrew Menu, and set override_any_app to false. A list of Title IDs for Switch Games can be found [here](https://switchbrew.org/wiki/Title_list/Games).
-
-To invert the behaviour of the override key, place an exclamation point in front of whatever button you wish to use. It will launch the actual game while holding down that button, instead of going into the Homebrew Menu. For example, `override_key=!R` will run the game only while holding down R when launching it, otherwise it will boot into the Homebrew Menu. Afterwards you may reinsert your SD Card into your Switch and boot into Atmosphère as you normally would. You should now be able to boot into the Homebrew Menu by launching your designated title of choice.
-
-A list of valid buttons can be found here:
-
-| Formal Name | .ini Name |
-| ----------- | --------- |
-| A Button    | A         |
-| B Button    | B         |
-| X Button    | X         |
-| Y Button    | Y         |
-| Left Stick  | LS        |
-| Right Stick | RS        |
-| L Button    | L         |
-| R Button    | R         |
-| ZL Button   | ZL        |
-| ZR Button   | ZR        |
-| + Button    | PLUS      |
-| - Button    | MINUS     |
-| Left Dpad   | DLEFT     |
-| Up Dpad     | DUP       |
-| Right Dpad  | DRIGHT    |
-| Down Dpad   | DDOWN     |
-| SL Button   | SL        |
-| SR Button   | SR        |
-
-### SM MITM Integration
-
-When the Stratosphere implementation of loader creates a new process, it notifies [sm](sm.md) through the `AtmosphereAssociatePidTidForMitm` command to notify any MITM services of new processes' identities.
-
-### IPC: AtmosphereSetExternalContentSource and AtmosphereClearExternalContentSource
-
-Two additional commands are added to the [`ldr:shel`](https://reswitched.github.io/SwIPC/ifaces.html#nn::ro::detail::ILdrShellInterface) interface, called `AtmosphereSetExternalContentSource` and `AtmosphereClearExternalContentSource`.
-Their command IDs are `65000` and `65001` on all system firmware versions.
-
-`AtmosphereSetExternalContentSource` takes a `u64 tid` and returns a server-side session handle.
-The client is expected to implement the `IFileSystem` interface on the returned handle. The next
-time the title specified by the given title ID is launched, its ExeFS contents will be loaded from
-the custom `IFileSystem` instead of from SD card or original ExeFS. NSOs loaded from external
-content source may still be subject to exefs IPS patches. After the title is launched successfuly,
-the `IFileSystem` is closed and the external content source override is removed. If
-`AtmosphereSetExternalContentSource` is called on a title that already has an external content
-source set for it, the existing one will be removed and replaced with the new one. It is illegal to
-call `AtmosphereSetExternalContentSource` while the title is being launched.
-
-If title launching fails, the external content source remains registered. The
-`AtmosphereClearExternalContentSource` command can be used to clear an external content source if
-title launch fails.
-
-The `IFileSystem` only needs to implement `OpenFile` and `GetFileTimeStampRaw`. The paths received
-by the `IFileSystem`'s `OpenFile` command begin with slashes, as in `/main`, `/rtld`, and `/main.npdm`.
-A result code of 0x202 should be returned if the file does not exist. `GetFileTimeStampRaw` can just
-be a stub. The `IFile`s returned from `OpenFile` only need to implement `Read` and `GetSize`.
-
-The SwIPC definitions for the extension commands follow.
-```
-interface nn::ldr::detail::IShellInterface is ldr:shel {
-  ...
-  [65000] AtmosphereSetExternalContentSource(u64 tid) -> handle<copy, session_server> ifilesystem_handle;
-  [65001] AtmosphereClearExternalContentSource(u64 tid);
-}
-```

docs/modules/pm.md

@@ -1,23 +0,0 @@
-# pm
-
-pm is a reimplementation of Nintendo's process manager. This module is responsible for tracking running processes on the system, and managing resource limits. pm is also required to create and manage processes for homebrew applications.
-
-## Atmosphère Extensions
-
-There are a few ways in which the Stratosphere implementation of pm differs intentionally from the stock pm.
-
-### IPC: AtmosphereGetProcessHandle
-
-The Stratosphere implementation of pm adds an additional command to the [`pm:dmnt`](https://reswitched.github.io/SwIPC/ifaces.html#nn::pm::detail::IDebugMonitorInterface) interface, called `AtmosphereGetProcessHandle`. Its command ID is `65000` on all system firmware versions. It takes a `u64 process_id` and returns a process handle for the specified process, if that process is known. Notable exceptions include KIPs, which are not known to pm. If the specified process cannot be found, error code 0x20F is returned.
-
-The SwIPC definition for this command follows.
-```
-interface nn::pm::detail::IDebugMonitorInterface is pm:dmnt {
-  ...
-  [65000] AtmosphereGetProcessInfo(u64 pid) -> handle<copy, process> process_handle, u64 title_id, u64 storage_id;
-}
-```
-
-### Extra System Memory for Sysmodules
-
-The Stratosphere implementation of pm shrinks the APPLET memory pool by 24 MiB by default, giving this memory to the SYSTEM pool. This allows custom sysmodules to use more memory without hitting the SYSTEM memory limit.

docs/modules/set_mitm.md

@@ -1,79 +0,0 @@
-# set_mitm
-set_mitm is a sysmodule that enables intercepting requests to the system settings service.
-
-## Atmosphère Extensions
-
-set_mitm intercepts the `GetFirmwareVersion` command, if the requester is `qlaunch` or `maintenance`.\
-It modifies the `display_version` field of the returned system version, causing the version to display\
-in settings as `#.#.# (AMS #.#.#)`. This allows users to easily verify what version of Atmosphère they are running.
-
-set_mitm also intercepts the `GetSettingsItemValueSize` and `GetSettingsItemValue` commands for all requesters.\
-It does so in order to enable user configuration of system settings, which are parsed from `atmosphere/system_settings.ini` on boot.\
-The format for settings is described below.
-
-### Atmosphère Settings Format
-
-Settings are parsed from the `atmosphere/system_settings.ini` file during the boot process. This file is a normal ini file,\
-with some specific interpretations.
-
-The standard representation of a system setting's identifier takes the form `name!key`. This is represented within\
-`system_settings.ini` as a section `name`, with an entry `key`. For example:
-
-```
-[name]
-key = ...
-```
-
-System settings can have variable types (strings, integral values, byte arrays, etc). To accommodate this, `system_settings.ini`\
-must store values as a `type_identifier!value_store` pair. A number of different types are supported, with identifiers detailed below.\
-Please note that a malformed value string will cause a fatal error to occur on boot. A full example of a custom setting is given below\
-(setting `eupld!upload_enabled = 0`), for posterity:
-
-```
-[eupld]
-upload_enabled = u8!0x0
-```
-
-### Supported Types
-
-* Strings
-    * Type identifiers: `str`, `string`
-    * The value string is used directly as the setting, with null terminator appended.
-* Integral types
-    * Type identifiers: `u8`, `u16`, `u32`, `u64`
-    * The value string is parsed via a call to `strtoul(value, NULL, 0)`.
-    * Setting bitwidth is determined by the identifier (8 for 1 byte, 16 for 2 bytes, and so on).
-* Raw bytes
-    * Type identifiers: `hex`, `bytes`
-    * The value string is parsed as a hexadecimal string.
-        * The value string must be of even length, or a fatal error will be thrown on parse.
-
-### Atmosphère Custom Settings
-
-At the time of writing, Atmosphère implements two custom settings, found in the `atmosphere` section.\
-
-While not used for set_mitm, `power_menu_reboot_function` is loaded and controls the reboot behaviour of the console. By default, this value\
-is "payload", where the console will automatically reboot into the RCM payload stored in `sdmc:/atmosphere/reboot_payload.bin`.\
-(This payload is also used for fatal, upon a serious crash.) Setting the value to "rcm" reboots directly into RCM, and setting the value\
-to "normal" skips these behaviours.
-
-```
-[atmosphere]
-power_menu_reboot_function = str!payload
-```
-
-`dmnt_cheats_enabled_by_default` controls the behaviour of dmnt's cheat functionality. By default, this value is "0x1", enabling any cheats\
-defined by the user. Check [cheats](../cheats.md) for more information about Atmosphère's cheat functionality.
-
-```
-[atmosphere]
-dmnt_cheats_enabled_by_default = u8!0x1
-```
-
-`dmnt_always_save_cheat_toggles` controls the behaviour of dmnt's cheat toggle functionality. By default, this value is "0x0", causing toggles to\
-only be saved on game quit if a toggle file existed on game boot. Check [cheats](../cheats.md) for more information about Atmosphère's cheat functionality.
-
-```
-[atmosphere]
-dmnt_always_save_cheat_toggles = u8!0x0
-```

docs/modules/sm.md

@@ -1,125 +0,0 @@
-# sm
-
-sm is a reimplementation of Nintendo's service manager. It allows Atmosphère to add or remove process handle limits, add new services, or intercept service calls. This allows high-level intercepting of Horizon OS functionality.
-
-## Atmosphère Extensions
-
-There are a few ways in which the Stratosphere implementation of sm differs intentionally from the stock sm.
-
-### IPC: MITM Commands
-
-The Stratosphere implementation of sm adds a few additional commands to the [`sm:`](https://reswitched.github.io/SwIPC/ifaces.html#nn::sm::detail::IUserInterface) port session.
-
-Their SwIPC definitions follow.
-```
-interface nn::sm::detail::IUserInterface is sm: {
-  ...
-  [65000] AtmosphereInstallMitm(ServiceName service) -> handle<port, move> service, handle<server_session, move> query;
-  [65001] AtmosphereUninstallMitm(ServiceName service);
-  [65002] AtmosphereAssociatePidTidForMitm(u64 pid, u64 tid);
-}
-```
-
-Additionally, an interface `sm:dmnt` has been created to allow a debug monitor to query sm's state.
-
-Its SwIPC definition follows.
-```
-interface nn::sm::detail::IDebugMonitorInterface is sm:dmnt {
-  [65000] AtmosphereGetServiceRecord(ServiceName name) -> SmServiceRecord;
-  [65001] AtmosphereListServiceRecords(u64 offset) -> buffer<SmServiceRecord, 6>, u64 count;
-  [65002] AtmosphereGetServiceRecordSize() -> u64 record_size;
-}
-```
-
-
-#### AtmosphereInstallMitm
-
-This command alters the registration for the named service, in order to allow services to intercept communication between client processes and their intended services. It is used by [fs_mitm](fs_mitm.md).
-
-It takes the name of the service to install an MITM for, and returns two handles. The first is a port handle, similar to those returned from the [RegisterService](https://reswitched.github.io/SwIPC/ifaces.html#nn::sm::detail::IUserInterface(2)) command. The second is the server side of a session, called the query session. This session will used by sm to determine whether or not a new session should be intercepted, and to inform the MITM service of the identity of new processes.
-
-The query session is expected to implement the following interface.
-```
-interface MitmQueryService {
-  [65000] ShouldMitm(u64 pid) -> u64 should_mitm;
-  [65001] AssociatePidTid(u64 pid, u64 tid);
-}
-```
-
-The `ShouldMitm` command is invoked whenever a process attempts to make a new connection to the MITM'd service. It should return `0` if the process's connection should not be intercepted. Any other value will cause the process's connection to be intercepted. If the command returns an error code, the process's connection will not be intercepted.
-
-The `AssociatePidTid` command is invoked on all MITM query sessions whenever a new process is created, in order to inform those services of the identity of a newly created process before it attempts to connect to any services.
-
-If the process that installed the MITM attempts to connect to the service, it will always connect to the original service.
-
-This command requires that the session be initialized, returning error code 0x415 if it is not.\
-If the given service name is invalid, error code 0xC15 is returned.\
-If the user does not have service registration permission for the named service, error code 0x1015 is returned.\
-If the service already has an MITM installed, error code 0x815 is returned.\
-If the service has not yet been registered, the request will be deferred until the service is registered in the same manner as IUserInterface::GetService.
-
-#### AtmosphereUninstallMitm
-
-Removes any installed MITM for the named service.
-
-This command requires that the session be initialized, returning error code 0x415 if it is not.
-
-#### AtmosphereAssociatePidTidForMitm
-
-This command is used internally by the Stratosphere implementation of the [loader](loader.md) sysmodule, when a new process is created. It will call the `AssociatePidTid` command on every registered MITM query session.
-
-If the given process ID refers to a kernel internal process, error code 0x1015 is returned. This command requires that the session be initialized, returning error code 0x415 if it is not.
-
-#### AtmosphereGetServiceRecordSize
-
-Retrieves `sizeof(SmServiceRecord)` for a service. The current format of `SmServiceRecord` structure follows.
-
-```
-struct SmServiceRecord {
-    uint64_t service_name;
-    uint64_t owner_pid;
-    uint64_t max_sessions;
-    uint64_t mitm_pid;
-    uint64_t mitm_waiting_ack_pid;
-    bool is_light;
-    bool mitm_waiting_ack;
-};
-```
-
-#### AtmosphereGetServiceRecord
-
-Retrieves a service registration record for a service.
-
-#### AtmosphereListServiceRecords
-
-Provides a list of service registrations records.
-
-The command will return an array of `SmServiceRecord`s, skipping `offset` records. The number of records returned is indicated by `count`.
-If `count` is less than the size of the buffer divided by `sizeof(SmServiceRecord)` (the buffer was not completely filled), the end of the service registration list has been reached. Otherwise, client code
-should increment `offset` by `count` and call again. Client code should retrieve a record size using `AtmosphereGetServiceRecordSize`, and either make sure that the size of a record matches what it expects,
-or should make sure to use the correct size as the stride while iterating over the array of returned records. Example pseudocode is shown below.
-
-```
-offset = 0;
-record_size = AtmosphereGetServiceRecordSize();
-do {
-    SmServiceRecord records[16];
-    count = AtmosphereListServiceRecords(offset, buffer(records));
-    for (i = 0; i < count; i++) {
-        SmServiceRecord record = {0};
-        memcpy(&record, &records[i], min(record_size, sizeof(SmServiceRecord));
-        /* process record */
-        offset++;
-    }
-} while(count == sizeof(records) / record_size);
-```
-
-### Minimum Session Limit
-
-When a service is registered, the sysmodule registering it must specify a limit on the number of sessions that are allowed to be active for that service at a time. This is used to ensure that services like `fs-pr`, `fs-ldr`, and `ldr:pm` can only be connected to once, adding an additional layer of safety over the regular service verification to ensure that those services are only connected to by the highly priveleged process they are intended to be used by.
-
-By default, the Stratosphere implementation of PM will raise any session limits to at least 8, meaning that for services like `fs-pr` and those mentioned above, up to 8 processes will be able to connect to those sessions, leaving 7 sessions for homebrew to use.
-
-### Weak Service Verification
-
-In system firmware versions before 3.0.1, if a process did not call the [Initialize](https://reswitched.github.io/SwIPC/ifaces.html#nn::sm::detail::IUserInterface(0)) command on its `sm:` session, normally used to inform sm of the process's identity, sm would assume that the process was a kernel internal process and skip any service registration or access checks. The Stratosphere implementation of sm reimplements this vulnerability, allowing homebrew processes to skip service registration and access checks.

docs/roadmap.md

@@ -1,16 +1,63 @@
 # Planned Features
-The following features are planned to be added in future versions of Atmosphère:
-+ Thermosphère, a hypervisor-based emunand implementation.
-+ A feature-rich debugging toolset (a component of Stratosphère).
-  + A custom debug monitor system module, providing an API for debugging Switch's processes. This may not be a reimplementation of Nintendo's own debug monitor.
-    + This should include a gdbstub implementation, possibly borrowing from Luma3DS's.
-    + This API should be additionally usable for RAM Editing/"Cheat Engine" purposes.
-  + A custom shell system module, providing an means for users to perform various RPC (with support for common/interesting functionality) on their Switch remotely. This may not be a reimplementation of Nintendo's own shell.
-    + This should support client connections over both Wi-Fi and USB.
-  + A custom logging system module, providing a means for other Atmosphère components (and possibly Nintendo's own system modules) to log debug output.
-    + This should support logging to the SD card, over Wi-Fi, and over USB.
-+ An application-level plugin system.
-  + This will, ideally, work somewhat like NTR-CFW's plugin system on the 3DS, allowing users to run their own code in a game's process in their own thread.
-+ An AR Code/Gameshark analog implementation, allowing for easy sharing/development of cheat codes to run on device.
-+ Further extensions to existing Atmosphère components.
-+ General system stability improvements to enhance the user's experience.
+atmosphère has a number of features that are either works-in-progress or planned. Please note that while time-estimates are given, they are loose, and things may be completed sooner or later than advertised.
+
+The following descriptions were last updated on June 29th, 2020.
+
+## system updater homebrew
+* **Description**: A user homebrew making use of the new system updater api, so that users can actually use the new api in practice.
+* **Development Status**: Initial revision complete, pending re-write by Adubbz.
+* **Completion Time**: June-July 2020
+
+## ams-on-mariko
+* **Description**: Atmosphere cannot run as-is on Mariko hardware. A large number of changes are needed in many components. Although secure monitor support is complete in exosphere, additional work is needed on the bootloader and stratosphere sides as well. Mariko support will also require further design thought; atmosphere's debugging design heavily relies on reboot-to-payload and (more generally) the ability to perform warmboot bootrom hax at will. This is not possible on Mariko, and will require a new design/software support for whatever solution is chosen.
+* **Development Status**: Planned.
+* **Estimated Time**: Summer 2020
+
+## settings reimplementation
+* **Description**: A planned reimplementation of the settings system module, and with it a removal of the settings mitm. This will greatly simplify atmosphère's boot process, and will allow much more flexible control over the various system settings.
+* **Development Status**: Undergoing research/initial development by Adubbz.
+* **Estimated Time**: Mid 2020
+
+## mesosphere
+* **Description**: mesosphère is a reimplementation of the Horizon operating system's Kernel. It aims to provide an open-source reference for Nintendo's code.
+* **Development Status**: Under semi-active development by SciresM; temporarily on pause while the System Updater API is completed.
+* **Estimated Time**: Mid-to-Late 2020
+
+## tma reimplementation
+* **Description** tma ("target manager agent") is a system module that manages communication between the Switch and a client PC. Atmosphere's implementation will allow homebrew on the switch to communicate with a connected PC to do various operations such as exchanging data or interacting with files. It will also serve as the communicator for Atmosphère's planned debugger. This will also include PC-side software for interacting with the Switch.
+* **Development Status**: Planned. Switch-side code is fully implemented but needs heavy refactoring/rebasing, as the code was originally authored in 2018.
+* **Estimated Time**: Late 2020-2021.
+
+## dmnt.gen2 reimplementation
+* **Description**: A reimplementation of the Switch's debug monitor, dmnt will provide an interface for debugging applications or system modules running on the Switch. This will include a gdbstub for debugging actively-running system components or applications.
+* **Development Status**: Planned
+* **Estimated Time**: 2021
+
+## fs reimplementation
+* **Description**: Following mesosphère's completion, atmosphère will have reimplemented all components of the BootImagePackage firmware except for the filesystem services system module. Reimplementing fs will allow for fixing Nintendo bugs (such as corruption when using exFAT filesystems and encoding inconsistencies with UTF-8 and Shift-JIS).
+* **Development Status**: Planned.
+* **Estimated Time**: 2021-2022.
+
+## thermosphère
+* **Description**: A general-purpose hypervisor, thermosphère will enable the virtualization of the Switch's operating system; this is planned to enable debugging of the Switch's kernel.
+* **Development Status**: Under semi-active development by TuxSH.
+* **Estimated Time**: 2020-2021.
+
+## other planned features
+* **Description**: General system stability improvements to enhance the user's experience.
+* **Development Status**: Undergoing active development by all members of the atmosphère team.
+* **Estimated Time**: June 15th.
+
+# Completed features
+
+The following features were previously included under the planned features section and are now complete.
+
+Please note that this is not an exhaustive list of features present in atmosphère, and only serves to indicate what from the above has been completed.
+
+## system updater api
+* **Description**: A planned extension api for stratosphere (tenatively `ams:su`), this will provide an interface for homebrew to safely install system upgrades or downgrades. This will allow for much more easily transitioning safely between different versions of the operating system.
+* **Completion Time**: June 2020
+
+## exosphere re-write
+* **Description**: exosphère, atmosphère's reimplementation of Horizon's Secure Monitor, was the first component authored for the project in early 2018. It is written in C, and in a style very different from the rest of atmosphère's code. In addition, exosphère was written to conform to constraints that no longer apply in an environment where it is not launched from the web browser, and where using a custom firmware image to orchestrate wake-from-sleep is possible. exosphère currently uses all but 1 KB of the space available to it, putting it at risk of breaking as future firmware updates are supported. A re-write will solve these issues.
+* **Completion Time**: June 2020

emummc/.gitignore

@@ -0,0 +1,9 @@
+*.kip
+*.data
+*.elf
+build
+.vscode/ipch
+.vscode/settings.json
+*.exe
+*.kip*
+emummc.caps

emummc/.gitrepo

@@ -0,0 +1,12 @@
+; DO NOT EDIT (unless you know what you are doing)
+;
+; This subdirectory is a git "subrepo", and this file is maintained by the
+; git-subrepo command. See https://github.com/git-commands/git-subrepo#readme
+;
+[subrepo]
+	remote = https://github.com/m4xw/emuMMC
+	branch = exo2
+	commit = 06ab9b895c4264ecc14d3bf9be1260e2096f6037
+	parent = dccd41f6d25498c191a157123a27724203d3bc37
+	method = rebase
+	cmdver = 0.4.1

emummc/.vscode/c_cpp_properties.json

@@ -0,0 +1,35 @@
+{
+    "configurations": [
+        {
+            "name": "Switch",
+            "includePath": [
+                "/opt/devkitpro/devkitA64/aarch64-none-elf/include",
+                "/opt/devkitpro/devkitA64/lib/gcc/aarch64-none-elf/8.3.0/include",
+                "${workspaceFolder}/libnx-patched/nx/include",
+                "/opt/devkitpro/portlibs/switch/include",
+                "/opt/devkitpro/portlibs/switch/include/freetype2",
+                "${workspaceFolder}/source",
+                "${workspaceFolder}/source/emmc",
+                "${workspaceFolder}/source/libs/fatfs",
+                "${workspaceFolder}/source/power",
+                "${workspaceFolder}/source/soc",
+                "${workspaceFolder}/source/utils",
+                "${workspaceFolder}/**"
+            ],
+            "defines": [
+                "_DEBUG",
+                "UNICODE",
+                "_UNICODE",
+                "__aarch64__",
+                "__SWITCH__",
+                "INNER_HEAP_SIZE=0x80000"
+            ],
+            "windowsSdkVersion": "10.0.17763.0",
+            "compilerPath": "/opt/devkitpro/devkitA64/bin/aarch64-none-elf-gcc",
+            "cStandard": "c11",
+            "cppStandard": "c++11",
+            "intelliSenseMode": "gcc-x64"
+        }
+    ],
+    "version": 4
+}

emummc/LICENSE

@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

emummc/Makefile

@@ -0,0 +1,115 @@
+.SUFFIXES:
+
+ifeq ($(strip $(DEVKITPRO)),)
+$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>/devkitpro")
+endif
+
+TARGET		:=	emummc
+BUILD		:=	build
+SOURCES		:=	source/nx source source/utils source/emmc source/soc source/power source/emuMMC source/FS source/libs/fatfs
+DATA		:=	data
+INCLUDES	:=	include
+EXEFS_SRC	:=	exefs_src
+
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+EMUMMCDIR ?= $(CURDIR)
+else
+EMUMMCDIR ?= $(CURDIR)/../
+endif
+
+include $(DEVKITPRO)/libnx/switch_rules
+
+ARCH	:=	-march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE
+
+# Current max usage is 0x4600. (512 * 34 FatFS file objects + 1 fsync buffer).
+DEFINES := -DINNER_HEAP_SIZE=0x8000
+
+CFLAGS	:=	-Wall -O2 -ffunction-sections -fdata-sections -Wno-unused-function \
+			$(ARCH) $(DEFINES)
+
+CFLAGS	+=	$(INCLUDE) -D__SWITCH__
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++17
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(EMUMMCDIR)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+ifeq ($(strip $(CPPFILES)),)
+	export LD	:=	$(CC)
+else
+	export LD	:=	$(CXX)
+endif
+
+export OFILES_BIN	:=	$(addsuffix .o,$(BINFILES))
+export OFILES_SRC	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+export OFILES 	:=	$(OFILES_BIN) $(OFILES_SRC)
+export HFILES_BIN	:=	$(addsuffix .h,$(subst .,_,$(BINFILES)))
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+export BUILD_EXEFS_SRC := $(TOPDIR)/$(EXEFS_SRC)
+
+ifeq ($(strip $(CONFIG_JSON)),)
+	jsons := $(wildcard *.json)
+	ifneq (,$(findstring $(TARGET).json,$(jsons)))
+		export APP_JSON := $(TOPDIR)/$(TARGET).json
+	else
+		ifneq (,$(findstring config.json,$(jsons)))
+			export APP_JSON := $(TOPDIR)/config.json
+		endif
+	endif
+else
+	export APP_JSON := $(TOPDIR)/$(CONFIG_JSON)
+endif
+
+.PHONY: $(BUILD) clean all
+
+all: $(BUILD)
+
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(TARGET).elf $(TARGET).kip
+
+else
+.PHONY:	all
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+all	:	$(OUTPUT).kip
+
+$(OUTPUT).kip	:	$(OUTPUT).elf
+
+$(OUTPUT).elf	:	$(OFILES)
+
+$(OFILES_SRC)	: $(HFILES_BIN)
+
+%.bin.o	%_bin.h :	%.bin
+	@echo $(notdir $<)
+	@$(bin2o)
+
+-include $(DEPENDS)
+
+endif

emummc/README.md

@@ -0,0 +1,36 @@
+# emuMMC
+*A SDMMC driver replacement for Nintendo's Filesystem Services, by **m4xw***  
+
+### Supported Horizon Versions
+**1.0.0 - 10.0.0**
+
+## Features
+* Arbitrary SDMMC backend selection  
+  **This allows loading eMMC from SD or even SD from eMMC**
+* On the fly hooking / patching, fully self-infesting  
+  **Only one payload required for all versions!**
+* File-based SDMMC backend support (from SD)  
+  **This allows loading eMMC images from hekate-backups (split or not)**
+* SDMMC device based sector offset (*currently eMMC only*)  
+  **Raw partition support for eMMC from SD with less performance overhead**
+* Full support for `/Nintendo` folder redirection to a arbitrary path  
+  **No 8 char length restriction!**
+* exosphere based context configuration  
+  **This includes full support for multiple emuMMC images**
+
+## Compiling
+### hekate
+Run `./build.sh` and copy the produced kipm (Kernel Initial Process Modification) file to `/bootloader/sys/`
+
+### Atmosphere
+Run `make`, the resulting kip can be used for code injection via fusee (place at `/atmosphere/emummc.kip`)
+
+## License
+**emuMMC is released as GPLv2**
+
+## Credits
+* **CTCaer** - The CTCaer hekate fork, file-based emuMMC support, SDMMC driver fixes among other things
+* **SciresM, hexkyz** - The Atmosphere project, FS offsets, additional research related to newer FS versions
+* **naehrwert** - The hekate project, its SDMMC driver and being very helpful in the early research phase
+* **jakibaki** - KIP Inject PoC, used in the early dev phase
+* **switchbrew/devkitPro** - devkitA64 and libnx sources

emummc/build.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+make clean
+make -j
+./hactool.exe -t kip emummc.kip --uncompressed emummc_unpacked.kip
+python2.7 tools/kip1converter.py emummc_unpacked.kip emummc.data
+cat emummc.caps emummc.data > emummc.kipm

emummc/emummc.json

@@ -1,105 +1,14 @@
 {
-    "name": "boot",
-    "title_id": "0x0100000000000005",
-    "main_thread_stack_size": "0x1000",
-    "main_thread_priority": 27,
+    "name": "FS",
+    "title_id": "0x0100000000000000",
+    "main_thread_stack_size": "0x00008000",
+    "main_thread_priority": 45,
     "default_cpu_id": 3,
     "process_category": 1,
     "kernel_capabilities": [
         {
-            "type": "handle_table_size",
-            "value": 128
-        },
-        {
-            "type": "syscalls",
-            "value": {
-                "svcSetHeapSize": "0x01",
-                "svcSetMemoryPermission": "0x02",
-                "svcSetMemoryAttribute": "0x03",
-                "svcMapMemory": "0x04",
-                "svcUnmapMemory": "0x05",
-                "svcQueryMemory": "0x06",
-                "svcExitProcess": "0x07",
-                "svcCreateThread": "0x08",
-                "svcStartThread": "0x09",
-                "svcExitThread": "0x0A",
-                "svcSleepThread": "0x0B",
-                "svcGetThreadPriority": "0x0C",
-                "svcSetThreadPriority": "0x0D",
-                "svcGetThreadCoreMask": "0x0E",
-                "svcSetThreadCoreMask": "0x0F",
-                "svcGetCurrentProcessorNumber": "0x10",
-                "svcSignalEvent": "0x11",
-                "svcClearEvent": "0x12",
-                "svcMapSharedMemory": "0x13",
-                "svcUnmapSharedMemory": "0x14",
-                "svcCreateTransferMemory": "0x15",
-                "svcCloseHandle": "0x16",
-                "svcResetSignal": "0x17",
-                "svcWaitSynchronization": "0x18",
-                "svcCancelSynchronization": "0x19",
-                "svcArbitrateLock": "0x1A",
-                "svcArbitrateUnlock": "0x1B",
-                "svcWaitProcessWideKeyAtomic": "0x1C",
-                "svcSignalProcessWideKey": "0x1D",
-                "svcGetSystemTick": "0x1E",
-                "svcConnectToNamedPort": "0x1F",
-                "svcSendSyncRequestLight": "0x20",
-                "svcSendSyncRequest": "0x21",
-                "svcSendSyncRequestWithUserBuffer": "0x22",
-                "svcSendAsyncRequestWithUserBuffer": "0x23",
-                "svcGetProcessId": "0x24",
-                "svcGetThreadId": "0x25",
-                "svcBreak": "0x26",
-                "svcOutputDebugString": "0x27",
-                "svcReturnFromException": "0x28",
-                "svcGetInfo": "0x29",
-                "svcCreateInterruptEvent": "0x53",
-                "svcQueryIoMapping": "0x55",
-                "svcCreateDeviceAddressSpace": "0x56",
-                "svcAttachDeviceAddressSpace": "0x57",
-                "svcDetachDeviceAddressSpace": "0x58",
-                "svcMapDeviceAddressSpaceAligned": "0x5A",
-                "svcUnmapDeviceAddressSpace": "0x5C",
-                "svcFlushProcessDataCache": "0x5F",
-                "svcCallSecureMonitor": "0x7F"
-            }
-        },
-        {
-            "type": "map",
-            "value": {
-                "address": "0x50003000",
-                "size": "0x1000",
-                "is_ro": false,
-                "is_io": true
-            }
-        },
-        {
-            "type": "map",
-            "value": {
-                "address": "0x54200000",
-                "size": "0x3000",
-                "is_ro": false,
-                "is_io": true
-            }
-        },
-        {
-            "type": "map",
-            "value": {
-                "address": "0x54300000",
-                "size": "0x1000",
-                "is_ro": false,
-                "is_io": true
-            }
-        },
-        {
-            "type": "map",
-            "value": {
-                "address": "0x60006000",
-                "size": "0x1000",
-                "is_ro": false,
-                "is_io": true
-            }
+            "type": "map_page",
+            "value": "0x60006000"
         },
         {
             "type": "map",
@@ -113,9 +22,9 @@
         {
             "type": "map",
             "value": {
-                "address": "0x70000000",
-                "size": "0x4000",
+                "address": "0x700b0000",
                 "is_ro": false,
+                "size": "0x00005000",
                 "is_io": true
             }
         },
@@ -123,49 +32,106 @@
             "type": "map",
             "value": {
                 "address": "0x7000C000",
-                "size": "0x2000",
                 "is_ro": false,
+                "size": "0x00002000",
                 "is_io": true
             }
         },
         {
             "type": "map",
             "value": {
-                "address": "0x7000E000",
-                "size": "0x4000",
+                "address": "0x70000000",
                 "is_ro": false,
+                "size": "0x00004000",
                 "is_io": true
             }
         },
         {
-            "type": "map",
+            "type": "handle_table_size",
+            "value": 256
+        },
+        {
+            "type": "irq_pair",
+            "value": [
+                46,
+                47
+            ]
+        },
+        {
+            "type": "irq_pair",
+            "value": [
+                51,
+                63
+            ]
+        },
+        {
+            "type": "syscalls",
             "value": {
-                "address": "0x700E3000",
-                "size": "0x1000",
-                "is_ro": false,
-                "is_io": true
+                "svcSetHeapSize": "0x01",
+                "svcSetMemoryPermission": "0x02",
+                "svcSetMemoryAttribute": "0x03",
+                "svcMapMemory": "0x04",
+                "svcUnmapMemory": "0x05",
+                "svcQueryMemory": "0x06",
+                "svcExitProcess": "0x07",
+                "svcCreateThread": "0x08",
+                "svcStartThread": "0x09",
+                "svcExitThread": "0x0a",
+                "svcSleepThread": "0x0b",
+                "svcGetThreadPriority": "0x0c",
+                "svcSetThreadPriority": "0x0d",
+                "svcGetThreadCoreMask": "0x0e",
+                "svcSetThreadCoreMask": "0x0f",
+                "svcGetCurrentProcessorNumber": "0x10",
+                "svcSignalEvent": "0x11",
+                "svcClearEvent": "0x12",
+                "svcMapSharedMemory": "0x13",
+                "svcUnmapSharedMemory": "0x14",
+                "svcCreateTransferMemory": "0x15",
+                "svcCloseHandle": "0x16",
+                "svcResetSignal": "0x17",
+                "svcWaitSynchronization": "0x18",
+                "svcCancelSynchronization": "0x19",
+                "svcArbitrateLock": "0x1a",
+                "svcArbitrateUnlock": "0x1b",
+                "svcWaitProcessWideKeyAtomic": "0x1c",
+                "svcSignalProcessWideKey": "0x1d",
+                "svcGetSystemTick": "0x1e",
+                "svcConnectToNamedPort": "0x1f",
+                "svcSendSyncRequestLight": "0x20",
+                "svcSendSyncRequest": "0x21",
+                "svcSendSyncRequestWithUserBuffer": "0x22",
+                "svcSendAsyncRequestWithUserBuffer": "0x23",
+                "svcGetProcessId": "0x24",
+                "svcGetThreadId": "0x25",
+                "svcBreak": "0x26",
+                "svcOutputDebugString": "0x27",
+                "svcReturnFromException": "0x28",
+                "svcGetInfo": "0x29",
+                "svcWaitForAddress": "0x34",
+                "svcSignalToAddress": "0x35",
+                "svcCreateSession": "0x40",
+                "svcAcceptSession": "0x41",
+                "svcReplyAndReceiveLight": "0x42",
+                "svcReplyAndReceive": "0x43",
+                "svcReplyAndReceiveWithUserBuffer": "0x44",
+                "svcCreateEvent": "0x45",
+                "svcReadWriteRegister": "0x4E",
+                "svcMapTransferMemory": "0x51",
+                "svcUnmapTransferMemory": "0x52",
+                "svcCreateInterruptEvent": "0x53",
+                "svcQueryIoMapping": "0x55",
+                "svcCreateDeviceAddressSpace": "0x56",
+                "svcAttachDeviceAddressSpace": "0x57",
+                "svcDetachDeviceAddressSpace": "0x58",
+                "svcMapDeviceAddressSpaceAligned": "0x5a",
+                "svcUnmapDeviceAddressSpace": "0x5c",
+                "svcGetSystemInfo": "0x6f",
+                "svcSetProcessMemoryPermission": "0x73",
+                "svcMapProcessMemory": "0x74",
+                "svcUnmapProcessMemory": "0x75",
+                "svcCallSecureMonitor": "0x7f"
             }
-        },
-        {
-            "type": "irq_pair",
-            "value": [
-                70,
-                116
-            ]
-        },
-        {
-            "type": "irq_pair",
-            "value": [
-                124,
-                152
-            ]
-        },
-        {
-            "type": "irq_pair",
-            "value": [
-                85,
-                95
-            ]
         }
     ]
 }

emummc/source/FS/FS.h

@@ -1,5 +1,6 @@
 /*
- * Copyright (c) 2018-2019 Atmosphère-NX
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -13,20 +14,27 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
- 
-#ifndef EXOSPHERE_TITLEKEY_H
-#define EXOSPHERE_TITLEKEY_H
 
-#include <stdint.h>
+#ifndef __FS_H__
+#define __FS_H__
 
-#define TITLEKEY_TYPE_MAX 0x1
+// TODO
+#include "../emmc/sdmmc_t210.h"
 
-void tkey_set_expected_label_hash(uint64_t *label_hash);
-void tkey_set_master_key_rev(unsigned int master_key_rev);
-void tkey_set_type(unsigned int type);
+#include "FS_versions.h"
+#include "FS_offsets.h"
+#include "FS_structs.h"
 
-size_t tkey_rsa_oaep_unwrap(void *dst, size_t dst_size, void *src, size_t src_size);
+#define FS_SDMMC_EMMC 0
+#define FS_SDMMC_SD 1
+#define FS_SDMMC_GC 2
 
-void tkey_aes_unwrap(void *dst, size_t dst_size, const void *src, size_t src_size);
+#define FS_EMMC_PARTITION_GPP 0
+#define FS_EMMC_PARTITION_BOOT0 1
+#define FS_EMMC_PARTITION_BOOT1 2
+#define FS_EMMC_PARTITION_INVALID 3
 
-#endif
+#define BOOT_PARTITION_SIZE 0x2000
+#define FS_READ_WRITE_ERROR 1048
+
+#endif /* __FS_H__ */

emummc/source/FS/FS_offsets.c

@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "FS_offsets.h"
+#include "offsets/100.h"
+#include "offsets/200.h"
+#include "offsets/200_exfat.h"
+#include "offsets/210.h"
+#include "offsets/210_exfat.h"
+#include "offsets/300.h"
+#include "offsets/300_exfat.h"
+#include "offsets/301.h"
+#include "offsets/301_exfat.h"
+#include "offsets/400.h"
+#include "offsets/400_exfat.h"
+#include "offsets/410.h"
+#include "offsets/410_exfat.h"
+#include "offsets/500.h"
+#include "offsets/500_exfat.h"
+#include "offsets/510.h"
+#include "offsets/510_exfat.h"
+#include "offsets/600.h"
+#include "offsets/600_exfat.h"
+#include "offsets/700.h"
+#include "offsets/700_exfat.h"
+#include "offsets/800.h"
+#include "offsets/800_exfat.h"
+#include "offsets/810.h"
+#include "offsets/810_exfat.h"
+#include "offsets/900.h"
+#include "offsets/900_exfat.h"
+#include "offsets/910.h"
+#include "offsets/910_exfat.h"
+#include "offsets/1000.h"
+#include "offsets/1000_exfat.h"
+#include "../utils/fatal.h"
+
+#define GET_OFFSET_STRUCT_NAME(vers) g_offsets##vers
+
+#define DEFINE_OFFSET_STRUCT(vers) \
+static const fs_offsets_t GET_OFFSET_STRUCT_NAME(vers) = { \
+    .sdmmc_accessor_gc               = FS_OFFSET##vers##_SDMMC_ACCESSOR_GC, \
+    .sdmmc_accessor_sd               = FS_OFFSET##vers##_SDMMC_ACCESSOR_SD, \
+    .sdmmc_accessor_nand             = FS_OFFSET##vers##_SDMMC_ACCESSOR_NAND, \
+    .sdmmc_wrapper_read              = FS_OFFSET##vers##_SDMMC_WRAPPER_READ, \
+    .sdmmc_wrapper_write             = FS_OFFSET##vers##_SDMMC_WRAPPER_WRITE, \
+    .clkrst_set_min_v_clock_rate     = FS_OFFSET##vers##_CLKRST_SET_MIN_V_CLK_RATE, \
+    .rtld                            = FS_OFFSET##vers##_RTLD, \
+    .rtld_destination                = FS_OFFSET##vers##_RTLD_DESTINATION, \
+    .lock_mutex                      = FS_OFFSET##vers##_LOCK_MUTEX, \
+    .unlock_mutex                    = FS_OFFSET##vers##_UNLOCK_MUTEX, \
+    .sd_mutex                        = FS_OFFSET##vers##_SD_MUTEX, \
+    .nand_mutex                      = FS_OFFSET##vers##_NAND_MUTEX, \
+    .active_partition                = FS_OFFSET##vers##_ACTIVE_PARTITION, \
+    .sdmmc_das_handle                = FS_OFFSET##vers##_SDMMC_DAS_HANDLE, \
+    .sdmmc_accessor_controller_close = FS_OFFSET##vers##_SDMMC_WRAPPER_CONTROLLER_CLOSE, \
+    .sd_das_init                     = FS_OFFSET##vers##_SD_DAS_INIT, \
+    .nintendo_paths                  = FS_OFFSET##vers##_NINTENDO_PATHS, \
+}
+
+// Actually define offset structs
+DEFINE_OFFSET_STRUCT(_100);
+DEFINE_OFFSET_STRUCT(_200);
+DEFINE_OFFSET_STRUCT(_200_EXFAT);
+DEFINE_OFFSET_STRUCT(_210);
+DEFINE_OFFSET_STRUCT(_210_EXFAT);
+DEFINE_OFFSET_STRUCT(_300);
+DEFINE_OFFSET_STRUCT(_300_EXFAT);
+DEFINE_OFFSET_STRUCT(_301);
+DEFINE_OFFSET_STRUCT(_301_EXFAT);
+DEFINE_OFFSET_STRUCT(_400);
+DEFINE_OFFSET_STRUCT(_400_EXFAT);
+DEFINE_OFFSET_STRUCT(_410);
+DEFINE_OFFSET_STRUCT(_410_EXFAT);
+DEFINE_OFFSET_STRUCT(_500);
+DEFINE_OFFSET_STRUCT(_500_EXFAT);
+DEFINE_OFFSET_STRUCT(_510);
+DEFINE_OFFSET_STRUCT(_510_EXFAT);
+DEFINE_OFFSET_STRUCT(_600);
+DEFINE_OFFSET_STRUCT(_600_EXFAT);
+DEFINE_OFFSET_STRUCT(_700);
+DEFINE_OFFSET_STRUCT(_700_EXFAT);
+DEFINE_OFFSET_STRUCT(_800);
+DEFINE_OFFSET_STRUCT(_800_EXFAT);
+DEFINE_OFFSET_STRUCT(_810);
+DEFINE_OFFSET_STRUCT(_810_EXFAT);
+DEFINE_OFFSET_STRUCT(_900);
+DEFINE_OFFSET_STRUCT(_900_EXFAT);
+DEFINE_OFFSET_STRUCT(_910);
+DEFINE_OFFSET_STRUCT(_910_EXFAT);
+DEFINE_OFFSET_STRUCT(_1000);
+DEFINE_OFFSET_STRUCT(_1000_EXFAT);
+
+const fs_offsets_t *get_fs_offsets(enum FS_VER version) {
+    switch (version) {
+        case FS_VER_1_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_100));
+        case FS_VER_2_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_200));
+        case FS_VER_2_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_200_EXFAT));
+        case FS_VER_2_1_0:
+            return &(GET_OFFSET_STRUCT_NAME(_210));
+        case FS_VER_2_1_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_210_EXFAT));
+        case FS_VER_3_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_300));
+        case FS_VER_3_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_300_EXFAT));
+        case FS_VER_3_0_1:
+            return &(GET_OFFSET_STRUCT_NAME(_301));
+        case FS_VER_3_0_1_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_301_EXFAT));
+        case FS_VER_4_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_400));
+        case FS_VER_4_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_400_EXFAT));
+        case FS_VER_4_1_0:
+            return &(GET_OFFSET_STRUCT_NAME(_410));
+        case FS_VER_4_1_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_410_EXFAT));
+        case FS_VER_5_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_500));
+        case FS_VER_5_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_500_EXFAT));
+        case FS_VER_5_1_0:
+            return &(GET_OFFSET_STRUCT_NAME(_510));
+        case FS_VER_5_1_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_510_EXFAT));
+        case FS_VER_6_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_600));
+        case FS_VER_6_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_600_EXFAT));
+        case FS_VER_7_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_700));
+        case FS_VER_7_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_700_EXFAT));
+        case FS_VER_8_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_800));
+        case FS_VER_8_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_800_EXFAT));
+        case FS_VER_8_1_0:
+            return &(GET_OFFSET_STRUCT_NAME(_810));
+        case FS_VER_8_1_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_810_EXFAT));
+        case FS_VER_9_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_900));
+        case FS_VER_9_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_900_EXFAT));
+        case FS_VER_9_1_0:
+            return &(GET_OFFSET_STRUCT_NAME(_910));
+        case FS_VER_9_1_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_910_EXFAT));
+        case FS_VER_10_0_0:
+            return &(GET_OFFSET_STRUCT_NAME(_1000));
+        case FS_VER_10_0_0_EXFAT:
+            return &(GET_OFFSET_STRUCT_NAME(_1000_EXFAT));
+        default:
+            fatal_abort(Fatal_UnknownVersion);
+    }
+}

emummc/source/FS/FS_offsets.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __FS_OFFSETS_H__
+#define __FS_OFFSETS_H__
+
+#include <stdint.h>
+#include "FS_versions.h"
+
+typedef struct {
+    int opcode_reg;
+    uint32_t adrp_offset;
+    uint32_t add_rel_offset;
+} fs_offsets_nintendo_path_t;
+
+typedef struct {
+    // Accessor vtable getters
+    uintptr_t sdmmc_accessor_gc;
+    uintptr_t sdmmc_accessor_sd;
+    uintptr_t sdmmc_accessor_nand;
+    // Hooks
+    uintptr_t sdmmc_wrapper_read;
+    uintptr_t sdmmc_wrapper_write;
+    uintptr_t rtld;
+    uintptr_t rtld_destination;
+    uintptr_t clkrst_set_min_v_clock_rate;
+    // Misc funcs
+    uintptr_t lock_mutex;
+    uintptr_t unlock_mutex;
+    uintptr_t sdmmc_accessor_controller_close;
+    // Misc data
+    uintptr_t sd_mutex;
+    uintptr_t nand_mutex;
+    uintptr_t active_partition;
+    uintptr_t sdmmc_das_handle;
+    // NOPs
+    uintptr_t sd_das_init;
+    // Nintendo Paths
+    fs_offsets_nintendo_path_t nintendo_paths[];
+} fs_offsets_t;
+
+const fs_offsets_t *get_fs_offsets(enum FS_VER version);
+
+#endif // __FS_OFFSETS_H__

emummc/source/FS/FS_structs.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __FS_STRUCTS_H__
+#define __FS_STRUCTS_H__
+
+#include "../utils/types.h"
+
+typedef struct
+{
+    char *device_addr_buffer;
+    uint64_t device_addr_buffer_size;
+    char *device_addr_buffer_masked;
+} sdmmc_dma_buffer_t;
+
+_Static_assert(__alignof(sdmmc_dma_buffer_t) == 8, "sdmmc_dma_buffer_t definition");
+
+typedef struct sdmmc_accessor_vt
+{
+    void *ctor;
+    void *dtor;
+    void *map_device_addr_space;
+    void *unmap_device_addr_space;
+    void *controller_open;
+    uint64_t (*sdmmc_accessor_controller_close)(void *);
+    uint64_t (*read_write)(void *, uint64_t, uint64_t, void *, uint64_t, uint64_t);
+    // More not included because we don't use it.
+} sdmmc_accessor_vt_t;
+
+_Static_assert(__alignof(sdmmc_accessor_vt_t) == 8, "sdmmc_accessor_vt_t definition");
+
+typedef struct
+{
+    void *vtab;
+    t210_sdmmc_t *io_map;
+    sdmmc_dma_buffer_t dmaBuffers[3];
+    // More not included because we don't use it.
+} mmc_obj_t;
+
+typedef struct
+{
+    sdmmc_accessor_vt_t *vtab;
+    mmc_obj_t *parent;
+    // More not included because we don't use it.
+} sdmmc_accessor_t;
+
+#endif // __FS_STRUCTS_H__

emummc/source/FS/FS_versions.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __FS_VERSIONS_H__
+#define __FS_VERSIONS_H__
+
+// FS Version enum
+enum FS_VER
+{
+    FS_VER_1_0_0 = 0,
+
+    FS_VER_2_0_0,
+    FS_VER_2_0_0_EXFAT,
+
+    FS_VER_2_1_0,
+    FS_VER_2_1_0_EXFAT,
+
+    FS_VER_3_0_0,
+    FS_VER_3_0_0_EXFAT,
+
+    FS_VER_3_0_1,
+    FS_VER_3_0_1_EXFAT,
+
+    FS_VER_4_0_0,
+    FS_VER_4_0_0_EXFAT,
+
+    FS_VER_4_1_0,
+    FS_VER_4_1_0_EXFAT,
+
+    FS_VER_5_0_0,
+    FS_VER_5_0_0_EXFAT,
+
+    FS_VER_5_1_0,
+    FS_VER_5_1_0_EXFAT,
+
+    FS_VER_6_0_0,
+    FS_VER_6_0_0_EXFAT,
+
+    FS_VER_7_0_0,
+    FS_VER_7_0_0_EXFAT,
+
+    FS_VER_8_0_0,
+    FS_VER_8_0_0_EXFAT,
+
+    FS_VER_8_1_0,
+    FS_VER_8_1_0_EXFAT,
+
+    FS_VER_9_0_0,
+    FS_VER_9_0_0_EXFAT,
+
+    FS_VER_9_1_0,
+    FS_VER_9_1_0_EXFAT,
+
+    FS_VER_10_0_0,
+    FS_VER_10_0_0_EXFAT,
+
+    FS_VER_MAX,
+};
+
+#endif // __FS_VERSIONS_H__

emummc/source/FS/offsets/100.h

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __FS_100_H__
+#define __FS_100_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_100_SDMMC_ACCESSOR_GC   0x6F850
+#define FS_OFFSET_100_SDMMC_ACCESSOR_SD   0x6F65C
+#define FS_OFFSET_100_SDMMC_ACCESSOR_NAND 0x6F230
+
+// Hooks
+#define FS_OFFSET_100_SDMMC_WRAPPER_READ  0x6A930
+#define FS_OFFSET_100_SDMMC_WRAPPER_WRITE 0x6A9F0
+#define FS_OFFSET_100_RTLD                0x534
+#define FS_OFFSET_100_RTLD_DESTINATION    0xA0
+
+#define FS_OFFSET_100_CLKRST_SET_MIN_V_CLK_RATE 0x0
+
+// Misc funcs
+#define FS_OFFSET_100_LOCK_MUTEX          0x2884
+#define FS_OFFSET_100_UNLOCK_MUTEX        0x28F0
+
+#define FS_OFFSET_100_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x6A8AC
+
+// Misc Data
+#define FS_OFFSET_100_SD_MUTEX            0xE36058
+#define FS_OFFSET_100_NAND_MUTEX          0xE30610
+#define FS_OFFSET_100_ACTIVE_PARTITION    0xE30650
+#define FS_OFFSET_100_SDMMC_DAS_HANDLE    0xE2F730
+
+// NOPs
+#define FS_OFFSET_100_SD_DAS_INIT         0x0
+
+// Nintendo Paths
+#define FS_OFFSET_100_NINTENDO_PATHS \
+{ \
+    {.opcode_reg = 8, .adrp_offset = 0x00032C58, .add_rel_offset = 8}, \
+    {.opcode_reg = 9, .adrp_offset = 0x00032F40, .add_rel_offset = 8}, \
+    {.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_100_H__

emummc/source/FS/offsets/1000.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __FS_1000_H__
+#define __FS_1000_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_1000_SDMMC_ACCESSOR_GC   0x14DC90
+#define FS_OFFSET_1000_SDMMC_ACCESSOR_SD   0x14BDA0
+#define FS_OFFSET_1000_SDMMC_ACCESSOR_NAND 0x146C20
+
+// Hooks
+#define FS_OFFSET_1000_SDMMC_WRAPPER_READ  0x142380
+#define FS_OFFSET_1000_SDMMC_WRAPPER_WRITE 0x142460
+#define FS_OFFSET_1000_RTLD                0x634
+#define FS_OFFSET_1000_RTLD_DESTINATION    0x9C
+
+#define FS_OFFSET_1000_CLKRST_SET_MIN_V_CLK_RATE 0x1415A0
+
+// Misc funcs
+#define FS_OFFSET_1000_LOCK_MUTEX          0x28910
+#define FS_OFFSET_1000_UNLOCK_MUTEX        0x28960
+
+#define FS_OFFSET_1000_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x1422E0
+
+// Misc Data
+#define FS_OFFSET_1000_SD_MUTEX            0xE273E8
+#define FS_OFFSET_1000_NAND_MUTEX          0xE22DA0
+#define FS_OFFSET_1000_ACTIVE_PARTITION    0xE22DE0
+#define FS_OFFSET_1000_SDMMC_DAS_HANDLE    0xE0AB90
+
+// NOPs
+#define FS_OFFSET_1000_SD_DAS_INIT         0x151CEC
+
+// Nintendo Paths
+#define FS_OFFSET_1000_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x0006BBA4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00078520, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x0007ED0C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 4, .adrp_offset = 0x0009115C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_1000_H__

emummc/source/FS/offsets/1000_exfat.h

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __FS_1000_EXFAT_H__
+#define __FS_1000_EXFAT_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_1000_EXFAT_SDMMC_ACCESSOR_GC   0x14DC90
+#define FS_OFFSET_1000_EXFAT_SDMMC_ACCESSOR_SD   0x14BDA0
+#define FS_OFFSET_1000_EXFAT_SDMMC_ACCESSOR_NAND 0x146C20
+
+// Hooks
+#define FS_OFFSET_1000_EXFAT_SDMMC_WRAPPER_READ  0x142380
+#define FS_OFFSET_1000_EXFAT_SDMMC_WRAPPER_WRITE 0x142460
+#define FS_OFFSET_1000_EXFAT_RTLD                0x634
+#define FS_OFFSET_1000_EXFAT_RTLD_DESTINATION    0x9C
+
+#define FS_OFFSET_1000_EXFAT_CLKRST_SET_MIN_V_CLK_RATE 0x1415A0
+
+// Misc funcs
+#define FS_OFFSET_1000_EXFAT_LOCK_MUTEX          0x28910
+#define FS_OFFSET_1000_EXFAT_UNLOCK_MUTEX        0x28960
+
+#define FS_OFFSET_1000_EXFAT_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x1422E0
+
+// Misc Data
+#define FS_OFFSET_1000_EXFAT_SD_MUTEX            0xE353E8
+#define FS_OFFSET_1000_EXFAT_NAND_MUTEX          0xE30DA0
+#define FS_OFFSET_1000_EXFAT_ACTIVE_PARTITION    0xE30DE0
+#define FS_OFFSET_1000_EXFAT_SDMMC_DAS_HANDLE    0xE18B90
+
+// NOPs
+#define FS_OFFSET_1000_EXFAT_SD_DAS_INIT         0x151CEC
+
+// Nintendo Paths
+#define FS_OFFSET_1000_EXFAT_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x0006BBA4, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00078520, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x0007ED0C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 4, .adrp_offset = 0x0009115C, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_1000_EXFAT_H__

emummc/source/FS/offsets/200.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __FS_200_H__
+#define __FS_200_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_200_SDMMC_ACCESSOR_GC   0x78BAC
+#define FS_OFFSET_200_SDMMC_ACCESSOR_SD   0x7894C
+#define FS_OFFSET_200_SDMMC_ACCESSOR_NAND 0x784BC
+
+// Hooks
+#define FS_OFFSET_200_SDMMC_WRAPPER_READ  0x73478
+#define FS_OFFSET_200_SDMMC_WRAPPER_WRITE 0x73538
+#define FS_OFFSET_200_RTLD                0x500
+#define FS_OFFSET_200_RTLD_DESTINATION    0x98
+
+#define FS_OFFSET_200_CLKRST_SET_MIN_V_CLK_RATE 0x0
+
+// Misc funcs
+#define FS_OFFSET_200_LOCK_MUTEX          0x3264
+#define FS_OFFSET_200_UNLOCK_MUTEX        0x32D0
+
+#define FS_OFFSET_200_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x733F4
+
+// Misc Data
+#define FS_OFFSET_200_SD_MUTEX            0xE42268
+#define FS_OFFSET_200_NAND_MUTEX          0xE3CED0
+#define FS_OFFSET_200_ACTIVE_PARTITION    0xE3CF10
+#define FS_OFFSET_200_SDMMC_DAS_HANDLE    0xE3BDD0
+
+// NOPs
+#define FS_OFFSET_200_SD_DAS_INIT         0x0
+
+// Nintendo Paths
+#define FS_OFFSET_200_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x00033F08, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00035084, .add_rel_offset = 0x0000000C}, \
+	{.opcode_reg = 3, .adrp_offset = 0x0003537C, .add_rel_offset = 0x0000000C}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_200_H__

emummc/source/FS/offsets/200_exfat.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2019 m4xw <m4x@m4xw.net>
+ * Copyright (c) 2019 Atmosphere-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __FS_200_EXFAT_H__
+#define __FS_200_EXFAT_H__
+
+// Accessor vtable getters
+#define FS_OFFSET_200_EXFAT_SDMMC_ACCESSOR_GC   0x78BAC
+#define FS_OFFSET_200_EXFAT_SDMMC_ACCESSOR_SD   0x7894C
+#define FS_OFFSET_200_EXFAT_SDMMC_ACCESSOR_NAND 0x784BC
+
+// Hooks
+#define FS_OFFSET_200_EXFAT_SDMMC_WRAPPER_READ  0x73478
+#define FS_OFFSET_200_EXFAT_SDMMC_WRAPPER_WRITE 0x73538
+#define FS_OFFSET_200_EXFAT_RTLD                0x500
+#define FS_OFFSET_200_EXFAT_RTLD_DESTINATION    0x98
+
+#define FS_OFFSET_200_EXFAT_CLKRST_SET_MIN_V_CLK_RATE 0x0
+
+// Misc funcs
+#define FS_OFFSET_200_EXFAT_LOCK_MUTEX          0x3264
+#define FS_OFFSET_200_EXFAT_UNLOCK_MUTEX        0x32D0
+
+#define FS_OFFSET_200_EXFAT_SDMMC_WRAPPER_CONTROLLER_CLOSE 0x733F4
+
+// Misc Data
+#define FS_OFFSET_200_EXFAT_SD_MUTEX            0xF22268
+#define FS_OFFSET_200_EXFAT_NAND_MUTEX          0xF1CED0
+#define FS_OFFSET_200_EXFAT_ACTIVE_PARTITION    0xF1CF10
+#define FS_OFFSET_200_EXFAT_SDMMC_DAS_HANDLE    0xF1BDD0
+
+// NOPs
+#define FS_OFFSET_200_EXFAT_SD_DAS_INIT         0x0
+
+// Nintendo Paths
+#define FS_OFFSET_200_EXFAT_NINTENDO_PATHS \
+{ \
+	{.opcode_reg = 3, .adrp_offset = 0x00033F08, .add_rel_offset = 0x00000004}, \
+	{.opcode_reg = 3, .adrp_offset = 0x00035084, .add_rel_offset = 0x0000000C}, \
+	{.opcode_reg = 3, .adrp_offset = 0x0003537C, .add_rel_offset = 0x0000000C}, \
+	{.opcode_reg = 0, .adrp_offset = 0, .add_rel_offset = 0}, \
+}
+
+#endif // __FS_200_EXFAT_H__