Re: [PATCH 3/3] Fix TSC MSR read in nested SVM

Joerg Roedel
2011-08-10T13:02:09Z

On Wed, Aug 10, 2011 at 03:35:28PM +0300, Nadav Har'El wrote:
> On Sun, Aug 07, 2011, Joerg Roedel wrote about "Re: [PATCH 3/3] Fix TSC MSR read in nested SVM":
> > > Joerg, can you review and ack Nadav's SVM patch? TIA
> >
> > Tested-by: Joerg Roedel <joerg.roedel@amd.com>
> > Acked-by: Joerg Roedel <joerg.roedel@amd.com>
> >
> > Reviewed and tested (didn't apply cleanly, but was easy to fix that up).
> > Looks all good so far.
>
> Hi guys, I'm a bit confused how we want to proceed from here.
>
> The patches which I sent appear to fix the original bug (as confirmed by
> the two people who reported it), but Zachary warned that it would break
> migration of nested SVM while L2 is running. I asked whether migration
> works at all while L2 is running (without exiting to L1 first) - and
> Marcelo suggested that it doesn't.

Migration doesn't work today when L2 is running, so don't worry about it
for now.

Regards,

Joerg