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kern: add speculation barriers after eret

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Michael Scire 2023-10-11 03:21:06 -07:00 • committed by SciresM
parent ec96203cb7
commit c72ba35684
6 changed files with 22 additions and 19 deletions
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5
libraries/libmesosphere/include/mesosphere/arch/arm64/kern_assembly_macros.h
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@ -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