Re: ping: [PATCH 0/3] add MEMORY_FAILURE event

[Paolo Bonzini]

On 21/09/20 04:22, zhenwei pi wrote:
> Hi,
> 
> A patchset about handling 'MCE' might have been ignored, can anyone tell
> me whether the purpose is reasonable?
> 
> https://patchwork.kernel.org/cover/11773795/

Yes, it's very useful.  Just one thing, "guest-mce" can be reported for
both AR and AO faults.  Is it worth adding a 'type' field to distinguish
the two?

Paolo

> On 9/14/20 9:43 PM, zhenwei pi wrote:
>> Although QEMU could catch signal BUS to handle hardware memory
>> corrupted event, sadly, QEMU just prints a little log and try to fix
>> it silently.
>>
>> In these patches, introduce a 'MEMORY_FAILURE' event with 4 detailed
>> actions of QEMU, then uplayer could know what situaction QEMU hit and
>> did. And further step we can do: if a host server hits a
>> 'hypervisor-ignore'
>> or 'guest-mce', scheduler could migrate VM to another host; if hitting
>> 'hypervisor-stop' or 'guest-triple-fault', scheduler could select other
>> healthy servers to launch VM.
>>
>> zhenwei pi (3):
>>    target-i386: seperate MCIP & MCE_MASK error reason
>>    iqapi/run-state.json: introduce memory failure event
>>    target-i386: post memory failure event to uplayer
>>
>>   qapi/run-state.json  | 46
>> ++++++++++++++++++++++++++++++++++++++++++++++
>>   target/i386/helper.c | 30 +++++++++++++++++++++++-------
>>   target/i386/kvm.c    |  5 ++++-
>>   3 files changed, 73 insertions(+), 8 deletions(-)
>>
>