On Wed, Aug 22, 2018 at 11:21 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
>
> Yes, KVM is correct but the i915 bits are at least fishy. It's probably
> as simple as adding a mmget/mmput pair respectively in kvmgt_guest_init
> and kvmgt_guest_exit, or maybe mmget_not_zero.
Definitely mmget_not_zero(). If it was just mmgrab()'ed earlier, the
actual page tables might already be gone.
Linus
