KVM: Expose MCE control MSRs to userspace

Userspace needs to reset and save/restore these MSRs.

The MCE banks are not exposed since their number varies from vcpu to vcpu.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d721e2d..eb55ec5 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -744,6 +744,8 @@ static unsigned num_msrs_to_save;
 
 static u32 emulated_msrs[] = {
        MSR_IA32_MISC_ENABLE,
+       MSR_IA32_MCG_STATUS,
+       MSR_IA32_MCG_CTL,
 };
 
 static int set_efer(struct kvm_vcpu *vcpu, u64 efer)