[21/22] KVM: SVM: Report Nested Paging support to userspace

Commit Message

Joerg Roedel April 27, 2010, 10:38 a.m. UTC

None

Patch

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 266b1d4..6d6b300 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3233,7 +3233,12 @@  static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
 		entry->ebx = 8; /* Lets support 8 ASIDs in case we add proper
 				   ASID emulation to nested SVM */
 		entry->ecx = 0; /* Reserved */
-		entry->edx = 0; /* Do not support any additional features */
+		entry->edx = 0; /* Per default do not support any
+				   additional features */
+
+		/* Support NPT for the guest if enabled */
+		if (npt_enabled)
+			entry->edx = SVM_FEATURE_NPT;
 
 		break;
 	}