Re: [Valgrind-developers] valgrind/coregrind

[Tom H. <th...@cy...>]

In message <200...@of...>
          Jeremy Fitzhardinge <je...@go...> wrote:

> Virtualize CPUID.  Rather than just using the host CPU's CPUID,
> we now completely virtualize it.  The feature flags returned are the
> intersection of the set the CPU supports, and the set of flags Valgrind
> supports.  This turns out to be a small number of features, like FPU,
> TSC, MMX, SSE, SSE2, FXSR.  All mention of things which are only useful
> to kernel-mode code are also suppressed.  This CPUID doesn't support
> any extended feature flags, or extended CPUID operations.  It returns a
> vendor string of "ValgrindVCPU".

We should really handle extended flags and set the MMXEXT bit as we
do support all the MMXEXT instructions on Athlons.

Tom

-- 
Tom Hughes (th...@cy...)
Software Engineer, Cyberscience Corporation
http://www.cyberscience.com/