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kernel: add xsave support

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monkuous
2025-11-15 23:20:05 +01:00
parent 4024c42af1
commit d301ec6955
8 changed files with 190 additions and 61 deletions
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kernel-src/include/x86-64/arch/signal.h
+8 -1
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@@ -56,9 +56,15 @@ typedef struct {
context_t context;
extracontext_t extracontext;
siginfo_t siginfo;
uint8_t xsave[];
} sigframe_t;
#define ARCH_SIGFRAME_GET_UCONTEXT_POINTER(x) (&(x)->uc_flags)
#define ARCH_SIGFRAME_SIZE (sizeof(sigframe_t) + arch_xsave_size)
static inline void arch_sigframe_init(sigframe_t *sigframe) {
sigframe->extracontext.xsave = sigframe->xsave;
}
static inline void arch_sigframe_prepare_mcontext(void *stack, sigframe_t *sigframe) {
context_t *context = &sigframe->context;
@@ -89,7 +95,8 @@ static inline void arch_sigframe_prepare_mcontext(void *stack, sigframe_t *sigfr
gregs[MCONTEXT_REG_OLDMASK] = 0;
gregs[MCONTEXT_REG_CR2] = context->cr2;
sigframe->mcontext.fpu_state_p = &((sigframe_t *)stack)->extracontext.fx;
extracontext->xsave = ((sigframe_t *)stack)->xsave;
sigframe->mcontext.fpu_state_p = extracontext->xsave;
}
static inline void arch_sigframe_get_context_from_mcontext(sigframe_t *sigframe) {