KVM: VMX: align vmx->nested.nested_vmx_secondary_ctls_high to vmx->rd…

…tscp_enabled The SECONDARY_EXEC_RDTSCP must be available iff RDTSCP is enabled in the guest. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
mariux64 · Oct 1, 2015 · 8b97265 · 8b97265
1 parent 29541bb
commit 8b97265
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
@@ -8686,9 +8686,14 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
 					exec_control);
 		}
 
-		if (nested && !vmx->rdtscp_enabled)
-			vmx->nested.nested_vmx_secondary_ctls_high &=
-				~SECONDARY_EXEC_RDTSCP;
+		if (nested) {
+			if (vmx->rdtscp_enabled)
+				vmx->nested.nested_vmx_secondary_ctls_high |=
+					SECONDARY_EXEC_RDTSCP;
+			else
+				vmx->nested.nested_vmx_secondary_ctls_high &=
+					~SECONDARY_EXEC_RDTSCP;
+		}
 	}
 
 	/* Exposing INVPCID only when PCID is exposed */