Messages in this thread | | | Date | Fri, 22 Feb 2008 02:04:49 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] X86: don't print a warning when MTRR are blank and running in KVM |
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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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