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ams: replace sept with tsec firmware (#1594)

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* ams: replace sept with tsec firmware

This replaces sept with a custom tsec key derivation firmware.

NOTE: This does not use any TSEC exploits whatsoever; it is a well-signed
TSEC binary assembled with envyas and signed with the real cauth key.

For more details, contact SciresM#0524.

* fusee: only set SBK if it's readable
This commit is contained in:
SciresM
2021-08-20 13:13:29 -07:00
committed by GitHub
parent f175802136
commit 17ca463c3f
137 changed files with 149 additions and 28364 deletions
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30
fusee/fusee-secondary/src/nxboot_iram.c
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@@ -24,18 +24,10 @@
#include "mc.h"
#include "nxboot.h"
#include "se.h"
#include "smmu.h"
#include "timers.h"
#include "sysreg.h"
/* Determine the current SoC for Mariko specific code. */
static bool is_soc_mariko() {
return (fuse_get_soc_type() == 1);
}
void nxboot_finish(uint32_t boot_memaddr) {
bool is_mariko = is_soc_mariko();
/* Boot up Exosphère. */
MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE = 0;
MAILBOX_NX_BOOTLOADER_SETUP_STATE = NX_BOOTLOADER_STATE_DRAM_INITIALIZED_4X;
@@ -43,26 +35,8 @@ void nxboot_finish(uint32_t boot_memaddr) {
/* Terminate the display. */
display_end();
if (is_mariko) {
/* Boot CPU0. */
cluster_boot_cpu0(boot_memaddr);
} else {
/* Check if SMMU emulation has been used. */
uint32_t smmu_magic = *(uint32_t *)(SMMU_AARCH64_PAYLOAD_ADDR + 0xFC);
if (smmu_magic == 0xDEADC0DE) {
/* Clear the magic. */
*(uint32_t *)(SMMU_AARCH64_PAYLOAD_ADDR + 0xFC) = 0;
/* Pass the boot address to the already running payload. */
*(uint32_t *)(SMMU_AARCH64_PAYLOAD_ADDR + 0xF0) = boot_memaddr;
/* Wait a while. */
mdelay(500);
} else {
/* Boot CPU0. */
cluster_boot_cpu0(boot_memaddr);
}
}
/* Boot CPU0. */
cluster_boot_cpu0(boot_memaddr);
/* Wait for Exosphère to wake up. */
while (MAILBOX_NX_BOOTLOADER_IS_SECMON_AWAKE == 0) {