CPUID bit definition as below:
CPUID.(EAX=d, ECX=1):ECX.CET_U(bit 11): user mode state
CPUID.(EAX=d, ECX=1):ECX.CET_S(bit 12): kernel mode state
Signed-off-by: Zhang Yi <yi.z.zh...@linux.intel.com>
Signed-off-by: Yang Weijiang <weijiang.y...@intel.com>
---
target/i386/cpu.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 11dbb9bcc4..ac0ceded89 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4382,13 +4382,22 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
*edx = env->features[FEAT_XSAVE_COMP_HI];
*ebx = xsave_area_size(env->xcr0);
} else if (count == 1) {
+ /* ebx is updated in kvm.*/
*eax = env->features[FEAT_XSAVE];
+ *ecx = env->features[FEAT_XSAVE_SV_LO];
+ *edx = env->features[FEAT_XSAVE_SV_HI];
} else if (count < ARRAY_SIZE(x86_ext_save_areas)) {
if ((x86_cpu_xsave_components(cpu) >> count) & 1) {
const ExtSaveArea *esa = &x86_ext_save_areas[count];
*eax = esa->size;
*ebx = esa->offset;
}
+ if ((x86_cpu_xsave_sv_components(cpu) >> count) & 1) {
+ const ExtSaveArea *esa_sv = &x86_ext_save_areas[count];
+ *eax = esa_sv->size;
+ *ebx = 0;
+ *ecx = 1;
+ }
}
break;
}
--
2.17.1
