@@ -562,6 +562,7 @@ struct kvm_vcpu_arch {
u64 smbase;
u64 smi_count;
bool tpr_access_reporting;
+ bool xsaves_enabled;
u64 ia32_xss;
u64 microcode_version;
u64 arch_capabilities;
@@ -5887,6 +5887,9 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
+ vcpu->arch.xsaves_enabled = guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
+ boot_cpu_has(X86_FEATURE_XSAVES);
+
/* Update nrips enabled cache */
svm->nrips_enabled = !!guest_cpuid_has(&svm->vcpu, X86_FEATURE_NRIPS);
@@ -4040,6 +4040,8 @@ static void vmx_compute_secondary_exec_control(struct vcpu_vmx *vmx)
guest_cpuid_has(vcpu, X86_FEATURE_XSAVE) &&
guest_cpuid_has(vcpu, X86_FEATURE_XSAVES);
+ vcpu->arch.xsaves_enabled = xsaves_enabled;
+
if (!xsaves_enabled)
exec_control &= ~SECONDARY_EXEC_XSAVES;
@@ -7093,6 +7095,9 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
+ /* xsaves_enabled is recomputed in vmx_compute_secondary_exec_control(). */
+ vcpu->arch.xsaves_enabled = false;
+
if (cpu_has_secondary_exec_ctrls()) {
vmx_compute_secondary_exec_control(vmx);
vmcs_set_secondary_exec_control(vmx);