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SubjectRe: [PATCH] X86: don't print a warning when MTRR are blank and running in KVM
Ingo Molnar wrote:
> * H. Peter Anvin <hpa@zytor.com> wrote:
>
>> Ingo Molnar wrote:
>>> * H. Peter Anvin <hpa@zytor.com> wrote:
>>>
>>>>> I'm not sure how we could detect pure Qemu instances - perhaps it should
>>>>> define some special MSR or something?
>>>> Perhaps they should fix the Qemu BIOS to actually simulate working MSRs;
>>>> if nothing else, they should set up the default MTRR to be cachable.
>>> btw., should KVM do the same?
>> Yes. Especially since they share a BIOS.
>
> ok. Then i guess we should just leave the warning and the backtrace in
> place until they get a fix done?
>

That would be my opinion.

Last I checked, they didn't even clear the cache disable bits in %cr0.

-hpa


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