arch/x86/registers.cpp

53 static void fxsave(void* register_state);
54 static void fxrstor(void* register_state);
55 static void xrstor(void* register_state, uint64_t feature_mask);
56 static void xrstors(void* register_state, uint64_t feature_mask);
57 static void xsave(void* register_state, uint64_t feature_mask);
58 static void xsaveopt(void* register_state, uint64_t feature_mask);
59 static void xsaves(void* register_state, uint64_t feature_mask);
342 void x86_extended_register_init_state(void* register_state) {
345     memcpy(register_state, extended_register_init_state, sizeof(extended_register_init_state));
348 void x86_extended_register_save_state(void* register_state) {
350     if (unlikely(!register_state)) {
355         xsaves(register_state, ~0ULL);
357         xsaveopt(register_state, ~0ULL);
359         xsave(register_state, ~0ULL);
361         fxsave(register_state);
365 void x86_extended_register_restore_state(void* register_state) {
367     if (unlikely(!register_state)) {
372         xrstors(register_state, ~0ULL);
374         xrstor(register_state, ~0ULL);
376         fxrstor(register_state);
498 static void fxsave(void* register_state) {
500                          : "=m"(*(uint8_t*)register_state)
505 static void fxrstor(void* register_state) {
508                          : "m"(*(uint8_t*)register_state)
512 static void xrstor(void* register_state, uint64_t feature_mask) {
515                      : "m"(*(uint8_t*)register_state),
521 static void xrstors(void* register_state, uint64_t feature_mask) {
524                      : "m"(*(uint8_t*)register_state),
530 static void xsave(void* register_state, uint64_t feature_mask) {
532                      : "+m"(*(uint8_t*)register_state)
538 static void xsaveopt(void* register_state, uint64_t feature_mask) {
540                      : "+m"(*(uint8_t*)register_state)
546 static void xsaves(void* register_state, uint64_t feature_mask) {
548                      : "+m"(*(uint8_t*)register_state)
570 void* x86_get_extended_register_state_component(void* register_state, uint32_t component,
577     xsave_area* area = reinterpret_cast<xsave_area*>(register_state);
608         uint8_t* component_begin = static_cast<uint8_t*>(register_state) + leaf.b;
647     uint8_t* component_begin = static_cast<uint8_t*>(register_state) + offset;