KVM: SVM: Report Nested Paging support to userspace

This patch implements the reporting of the nested paging
feature support to userspace.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index de1930ee2abb..36e6c88913dc 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3481,6 +3481,10 @@ static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry)
                 if (svm_has(SVM_FEATURE_NRIP))
                         entry->edx |= SVM_FEATURE_NRIP;
 
+                /* Support NPT for the guest if enabled */
+                if (npt_enabled)
+                        entry->edx |= SVM_FEATURE_NPT;
+
                 break;
         }
 }