[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH V4] X86/vMCE: handle broken page with regard to migration
(please trim your quotes) > More simply, we can remove not only step #8 for last iteration check, > but also the action to 'mark broken page to dirty bitmap': > In any iteration, there is a key point #4, if vmce occur before #4 it > will transfer proper pfn_type/pfn_number and (xl migration) will not > access broken page (if guest access the broken page again it will be > killed by hypervisor), if vmce occur after #4 system will crash and no > need care migration any more. > > So we can go back to the original patch which used to handle 'vmce > occur before migration' and entirely don't need add specific code to > handle 'vmce occur during migration', since it in fact has handled > both cases (and simple). Thoughts? Do you not need that stuff to handle MCEs during the live phase? Specifically an MCE occurring on a page which is not in the current batch at all can be handled safely during the live phase. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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