On Thu, Mar 10, 2016 at 02:04:29PM -0500, Paul Gortmaker wrote:
> So, I guess that is a qemu bug? If there is no real silicon out there
> that has no MTRR but does claim PAT, then qemu32 is a flawed CPU type?
Well, AFAICT, "qemu32" is emulating something PPRO-like:
#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
^^^^^^^^^
and that one advertizes PAT but not MTRRs.
I need to go dig into history to find out what PPRO actually supported.
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Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284
(AG Nürnberg)
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