Re: [Xen-devel] [PATCH 1/2] Xen/MCA: bugfix for mca bank clear

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.03.13 at 09:05, "Ren, Yongjie" <yongjie.ren@xxxxxxxxx> wrote:
>> From: Liu, Jinsong
>> Would you please test Jan's patch at *the* WSM-EX machine? It should be
>> fine but test is necessary and better.
>
> Your patch can work fine during my testing.
> Tested-by: Yongjie Ren <yongjie.ren@xxxxxxxxx>

Jinsong,

so I think your concerns regarding broadcast not working were in
fact misguided then? With the tool interposing values on the 
target CPU only, MSR reads and writes should end up to be
consistent on every individual CPU (either always reading real
MSRs and clearing them based on those real values, or always
reading interposed values, and skipping the clearing write upon
detection of reads having returned fake values).

Hence even if the tool interposed values on multiple CPUs, things
ought to work fine as long as those values are consistent.

If you agree, do you mind putting your acked-by under the patch?

Jan


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