[6/8] KVM: SVM: Report emulated SVM features to userspace

Commit Message

Joerg Roedel April 22, 2010, 10:33 a.m. UTC

None

Patch

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 0fa2035..65fc114 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3154,6 +3154,16 @@  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:
+		entry->eax = 1; /* SVM revision 1 */
+		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 */
+
+		break;
+	}
 }
 
 static const struct trace_print_flags svm_exit_reasons_str[] = {