On Thu, Mar 31, 2011 at 12:11:48PM +0200, Alexander Graf wrote:
> Scott, to verify that I don't completely screw up the lazy FPU work
> back when I did it, I wrote some small test program that would just
> initialize an fpu register with a value and then constantly loop to
> verify if it's still th
This is done lazily. The SPE save will be done only if the guest has
used SPE since the last preemption or heavyweight exit. Restore will be
done only on demand, when enabling MSR_SPE in the shadow MSR, in response
to an SPE fault or mtmsr emulation.
For SPEFSCR, Linux already switches it on con
On Thu, 31 Mar 2011 01:21:18 -0500
Kumar Gala wrote:
>
> On Mar 30, 2011, at 5:00 PM, Scott Wood wrote:
>
> > This allows reuse for saving/restoring KVM SPE state.
>
> Can you update commit comment to include a little about how we accomplish
> that. (something about the macro change is all I
