[17/18] KVM: SVM: Report Nested Paging support to userspace

Commit Message

Joerg Roedel March 3, 2010, 7:12 p.m. UTC

None

Patch

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index fe1398e..ce71023 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3289,6 +3289,16 @@  static void svm_cpuid_update(struct kvm_vcpu *vcpu)
 
 static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
 {
+	switch (func) {
+	case 0x8000000A:
+		if (!npt_enabled)
+			break;
+
+		/* NPT feature is supported by Nested SVM */
+		entry->edx = SVM_FEATURE_NPT;
+
+		break;
+	}
 }
 
 static const struct trace_print_flags svm_exit_reasons_str[] = {