On Thu, Sep 13, 2007 at 10:20:56AM -0700, H. Peter Anvin wrote:
> Yinghai Lu wrote:
> >
> > BIOS guys also said that fam 10h need mmconfig via eax accessing, may
> > need OS do sth, so it is safe to stay with MCFG entry for SB like
> > mcp55...
> >
> > but latest kernel already have that workaround to make mmconfig via eax...
> >
>
> This is actually a good point. Since the CPU vendor managed to
> completely fuck up the operation of MMCONFIG itself on this CPU (it's a
> *MEMORY REFERENCE*, guys!), it is actually to be expected and prudent
> that BIOS vendors will drop the MCFG entry. MMCONFIG doesn't actually
> work on this CPU for any system software which doesn't already know to
> work around this particular piece of severe braindamage;
But wait, isn't it true that Vista is using MCFG?
So, poor BIOS guys what should they do now?
If you have a special problem here why not upgrading your Linux kernel?
> standards-complicant MMCONFIG isn't supported at all.
And yes, it is complicated to follow your argumentation.
Andreas
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