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KVM: x86: mark hyper-v hypercall page as dirty 

Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vadim Rozenfeld 2014-01-23 18:12:52 +11:00 committed by Paolo Bonzini
parent c760f5e29d
commit b94b64c9a7
1 changed files with 1 additions and 0 deletions
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arch/x86/kvm/x86.c
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@ -1840,6 +1840,7 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data)
if (__copy_to_user((void __user *)addr, instructions, 4)) if (__copy_to_user((void __user *)addr, instructions, 4))
return 1; return 1;
kvm->arch.hv_hypercall = data; kvm->arch.hv_hypercall = data;
mark_page_dirty(kvm, gfn);
break; break;
} }
case HV_X64_MSR_REFERENCE_TSC: { case HV_X64_MSR_REFERENCE_TSC: {