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>
@@ -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);