Messages in this thread | | | Date | Fri, 16 Oct 2009 15:00:00 +0200 | From | Ingo Molnar <> | Subject | Re: x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space |
| |
* Andreas Herrmann <herrmann.der.user@googlemail.com> wrote:
> > are there any such CPUs? > > Only Magny-Cours so far. > > > I.e. we want to know the effect of this patch on various models of > > AMD CPUs - is the change really .32 safe? Does it solve any problem > > that makes it .32 material versus being for .33? > > IMHO getting rid of the PCI config space accesses as soon as possible > is a benefit, I think.
Agreed.
Is the patch an identity transformation? Or are there CPUs where the information from the PCI config space is different from the MSR derived one?
Ingo
| |