KVM: SVM: Ignore write of hwcr.ignne

Hyper-V as a guest wants to write this bit. This patch ignores it. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
git-mirror · Apr 25, 2010 · 8249402 · 8249402
1 parent 4a81018
commit 8249402
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -1090,6 +1090,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 		break;
 	case MSR_K7_HWCR:
 		data &= ~(u64)0x40;	/* ignore flush filter disable */
+		data &= ~(u64)0x100;	/* ignore ignne emulation enable */
 		if (data != 0) {
 			pr_unimpl(vcpu, "unimplemented HWCR wrmsr: 0x%llx\n",
 				data);