Re: [Xen-devel] Windows SMP

[Wei Huang <wei.huang2@xxxxxxx>]

James,

Travis Betak released a Windows driver which patches Windows TPR 
accesses. You can find it from http://sourceforge.net/projects/amdvopt/. 
The code would be useful as a reference. src link:
svn co https://amdvopt.svn.sourceforge.net/svnroot/amdvopt amdvopt

Thanks,

-Wei


James Harper wrote:
> > On 29/12/2008 08:20, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
> wrote:
> > > >  3. Run Citrix drivers which patch Windows to avoid TPR writes.
> > > Can you elaborate on that last point? Does that pass WHQL?
> > The WHQL tests are oblivious to it. It's just a patching of mmio
> writes to
> > the APIC TPR register.
> Looking at the way KVM does it, it appears to detect writes to the TPR
> register when they are trapped, and then give the DomU (or whatever KVM
> calls it) the address of the instruction so that the DomU driver can
> then patch it. Is that what Citrix is doing? Does the current xensource
> tree have such a mechanism in it?
>
> Thanks
>
> James
>
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