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>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1aa4d6e26badfe1134b88d7b73c9f59ec967dead..81b7af5558f939a77f64fbf23784d0837e5205fd 100644 (file)
--- 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);