OmniNX/Atmosphere
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kern: add speculation barriers after eret

Browse Source
This commit is contained in:
Michael Scire
2023-10-11 03:21:06 -07:00
parent 9e99f36d7c
commit b9a4c2bdba
6 changed files with 22 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_assembly_macros.h
View File

@@ -94,3 +94,8 @@ label_done:
ENABLE_FPU(xtmp1) \
GET_THREAD_CONTEXT_AND_RESTORE_FPCR_FPSR(ctx, xtmp1, xtmp2, wtmp1, wtmp2) \
RESTORE_FPU32_ALL_REGISTERS(ctx, xtmp1)
#define ERET_WITH_SPECULATION_BARRIER \
eret; \
dsb nsh; \
isb

2
libraries/libmesosphere/source/arch/arm64/svc/kern_svc_exception_asm.s
View File

@@ -130,4 +130,4 @@ _ZN3ams4kern3svc14RestoreContextEm:
/* Return. */
add sp, sp, #(EXCEPTION_CONTEXT_SIZE)
eret
ERET_WITH_SPECULATION_BARRIER

8
libraries/libmesosphere/source/arch/arm64/svc/kern_svc_handlers_asm.s
View File

@@ -194,7 +194,7 @@ _ZN3ams4kern4arch5arm6412SvcHandler64Ev:
/* Return. */
add sp, sp, #(EXCEPTION_CONTEXT_SIZE)
eret
ERET_WITH_SPECULATION_BARRIER
5: /* Return from SVC. */
@@ -297,7 +297,7 @@ _ZN3ams4kern4arch5arm6412SvcHandler64Ev:
/* Return. */
add sp, sp, #(EXCEPTION_CONTEXT_SIZE)
eret
ERET_WITH_SPECULATION_BARRIER
/* ams::kern::arch::arm64::SvcHandler32() */
.section .text._ZN3ams4kern4arch5arm6412SvcHandler32Ev, "ax", %progbits
@@ -467,7 +467,7 @@ _ZN3ams4kern4arch5arm6412SvcHandler32Ev:
/* Return. */
add sp, sp, #(EXCEPTION_CONTEXT_SIZE)
eret
ERET_WITH_SPECULATION_BARRIER
5: /* Return from SVC. */
@@ -547,4 +547,4 @@ _ZN3ams4kern4arch5arm6412SvcHandler32Ev:
/* Return. */
add sp, sp, #(EXCEPTION_CONTEXT_SIZE)
eret
ERET_WITH_SPECULATION_BARRIER