ACK: [H][PATCH 0/1] KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path (LP: 1920784)

[Guilherme Piccoli]

On Wed, Mar 24, 2021 at 11:38 AM <frank.heimes at canonical.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/1920784
>
> The Facility Status and Control Register is a privileged SPR that
> defines the availability of some features in problem state. Since it
> can be written by the guest, we must restore it to the previous host
> value after guest exit.
>
> That fixes a problem with qemu-system-ppc64le with kvm acceleration active.
>
> Fabiano Rosas (1):
>   KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path
>
>  arch/powerpc/kvm/book3s_hv.c | 4 ++++
>  1 file changed, 4 insertions(+)
>

Thanks Frank, it makes sense!

Acked-by: Guilherme G. Piccoli <gpiccoli at canonical.com>