Re: [Xen-devel] [PATCH V3] X86/vMCE: handle broken page with regard to migration

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

George Dunlap wrote:
> On 20/11/12 17:08, Liu, Jinsong wrote:
>>> On the other hand, the whole situation is hopefully rare enough that
>>> maybe we can just do the simple correct thing, even if it's a tiny
>>> bit sub-optimal.  In that case, assuming that spurious vMCEs aren't
>>> a problem (e.g., #1), I think we basically just need to see if the
>>> last iteration contains a broken page, and if so, send the guest a
>>> vMCE on resume. 
>>> 
>>> Thoughts?
>> 
>> Yes, that's exactly V3 patch did.
> 
> Right -- but you did it by adding an extra couple of loops, which made
> us wonder if there was a more efficient way to do the same thing.  Now
> that we know *what* needs to be done, we're in a better position to
> think about other options.  Let me take a look...
> 
>   -George

Wow, thanks!

Jinsong
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