* Avi Kivity <[email protected]> wrote:
> > Another option would be to try to set the SMEP bit *before* we
> > enable paging. In theory this should not confuse a Linux guest -
> > and while i have not tested it i *think* we let it survive in the
> > saved_cr4_features shadow variable. That would make guest
> > suspend/resume work out of box as well.
>
> Is there any reason not to do it in a hidden way in kvm? Why must
> we play tricks?
So do you have a suggestion of how to do this cleaner?
Add an ioctl that allows a VCPU to be configured in a way to set a
cr4 feature without the guest actually seeing that bit? [Assuming
both cr4 reads and writes are fully captured by KVM and thus guest
behavior is controllable.]
Thanks,
Ingo
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
