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    SubjectRe: [PATCH 1/4] x86 paravirt_ops: create no_paravirt.h for native ops
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    On Monday 07 August 2006 08:03, Rusty Russell wrote:
    > On Sun, 2006-08-06 at 22:43 -0700, Jeremy Fitzhardinge wrote:
    > > Andi Kleen wrote:
    > > >> +/* Stop speculative execution */
    > > >> +static inline void sync_core(void)
    > > >> +{
    > > >> + unsigned int eax = 1, ebx, ecx, edx;
    > > >> + __cpuid(&eax, &ebx, &ecx, &edx);
    > > >> +}
    > > >>
    > > >
    > > > Actually I don't think this one should be para virtualized at all.
    > > > I don't see any reason at all why a hypervisor should trap it and it
    > > > is very time critical. I would recommend you move it back into the
    > > > normal files without hooks.
    >
    > I don't see where it's time-critical...

    See explanation in my other email. Also in general we want this one fast.

    -Andi
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