Hi, Avi,
On Wed, 2010-07-07 at 19:09 +0800, Avi Kivity wrote:
> 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@xxxxxxxxxx>
> ---
> arch/x86/kvm/x86.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 7070b41..1e12cc5 100644
> --- 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,
We need only clear MSR_IA32_MCG_STATUS during reset, but should not
clear MSR_IA32_MCG_CTL.
> };
>
> static int set_efer(struct kvm_vcpu *vcpu, u64 efer)
Best Regards,
Huang Ying
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