RE: [Xen-devel] [PATCH] X86 MCE: Add SRAR handler

["Liu, Jinsong" <jinsong.liu@xxxxxxxxx>]

Liu, Jinsong wrote:
> Jan Beulich wrote:
>>>>> On 30.09.11 at 11:42, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx>
>>>>> wrote: 
>>> Jan Beulich wrote:
>>>>>>> On 30.09.11 at 10:21, "Liu, Jinsong" <jinsong.liu@xxxxxxxxx>
>>>>>>> wrote:
>>>>> Executing guest code will not satisfy the check
>>>>> if ( !(gstatus & MCG_STATUS_RIPV) && !guest_mode(regs))   return
>>>>> -1; so it would not panic system.
>>>> 
>>>> Exactly. But it should when the prefetch was to hypervisor code.
>>>> 
>>> 
>>> Wouldn't processor refresh instruction prefetch queue under such
>>> case?
>> 
>> That's a question that you are better positioned to answer than me.
>> But the SRAR errors being a sub-category of uncorrected errors I
>> would think it can't be that simple.
>> 
> 
> Hmm, I will check this question internally first.
> BTW, we would have 7 days holiday (1/10 ~ 7/10), so email reply maybe
> some slow. 
> 
> Thanks,
> Jinsong

Ah, just think our talking context: the prefetched instruction would have been 
flushed since we now at mce exception context.
So I think no need to overkill here, just let guest handle it --> who own, who 
take.

Thanks,
Jinsong
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