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kern: add speculation barriers after eret

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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
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2
libraries/libmesosphere/source/arch/arm64/svc/kern_svc_exception_asm.s
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@ -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