From: Joerg Roedel <[email protected]>

Hyper-V as a guest wants to write this bit. This patch
ignores it.

Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2c24cb5..31d44c1 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1112,6 +1112,7 @@ 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);
--
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