On 09/03/2017 20:03, Luiz Capitulino wrote:
> On Thu, 9 Mar 2017 13:49:06 +0100
> Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
>
>>> +struct kvm_x86_mce {
>>> + __u64 status;
>>> + __u64 addr;
>>> + __u64 misc;
>>> + __u64 mcg_status;
>>> + __u8 bank;
>>> + __u8 pad1[7];
>>> + __u64 pad2[3];
>>> +};
>>> +
>>> +If the MCE being reported is an uncorrected error, KVM will
>>> +inject it as a MCE exception into the guest (if an MCE
>>> +is still in progress, a triple fault is be injected).
>>
>> If the guest MCG_STATUS register reports that an MCE is in progress, KVM
>> causes an KVM_EXIT_SHUTDOWN vmexit.
>
> Oh, that's correct. But it only happens for uncorrected errors.
> So, My new paragraph would be:
>
> If the MCE being reported is an uncorrected error, KVM will
> inject it as an MCE exception into the guest. If the guest MCG_STATUS
> register reports taht an MCE is in progress, KVM causes an
> KVM_EXIT_SHUTDOWN vmexit.
>
> Otherwise, if the MCE is an corrected error, KVM will just
> store it in the corresponding bank (provided this bank is
> not holding a previously reported uncorrected error).
This is better, thanks!
Paolo
