Re: [PATCH for-3.6] kvm: fix KVM_GET_MSR for PV EOI

From: Marcelo Tosatti
Date: Mon Aug 27 2012 - 16:54:34 EST


On Sun, Aug 26, 2012 at 06:00:29PM +0300, Michael S. Tsirkin wrote:
> KVM_GET_MSR was missing support for PV EOI,
> which is needed for migration.
>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
>
> Please consider this bugfix patch for 3.6.
> Thanks!
>
> arch/x86/kvm/x86.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 91a5958..ff5e985 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1993,6 +1993,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
> case MSR_KVM_STEAL_TIME:
> data = vcpu->arch.st.msr_val;
> break;
> + case MSR_KVM_PV_EOI_EN:
> + data = vcpu->arch.pv_eoi.msr_val;
> + break;
> case MSR_IA32_P5_MC_ADDR:
> case MSR_IA32_P5_MC_TYPE:
> case MSR_IA32_MCG_CAP:

Should increase KVM_SAVE_MSRS_BEGIN.
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