On Tue, Jan 12, 2021 at 09:56:12AM +, Daniel P. Berrangé wrote:
> On Tue, Jan 12, 2021 at 03:45:05PM +1100, David Gibson wrote:
> > Some upcoming POWER machines have a system called PEF (Protected
> > Execution Facility) which uses a small ultravisor to allow guests to
> > run in a way that
On Tue, Jan 12, 2021 at 12:27:50PM +0100, Greg Kurz wrote:
> On Tue, 12 Jan 2021 15:45:05 +1100
> David Gibson wrote:
>
> > Some upcoming POWER machines have a system called PEF (Protected
> > Execution Facility) which uses a small ultravisor to allow guests to
> > run in a way that they can't
On Tue, 12 Jan 2021 15:45:05 +1100
David Gibson wrote:
> Some upcoming POWER machines have a system called PEF (Protected
> Execution Facility) which uses a small ultravisor to allow guests to
> run in a way that they can't be eavesdropped by the hypervisor. The
> effect is roughly similar to
On Tue, Jan 12, 2021 at 03:45:05PM +1100, David Gibson wrote:
> Some upcoming POWER machines have a system called PEF (Protected
> Execution Facility) which uses a small ultravisor to allow guests to
> run in a way that they can't be eavesdropped by the hypervisor. The
> effect is roughly similar
On Tue, Jan 12, 2021 at 03:45:05PM +1100, David Gibson wrote:
> Some upcoming POWER machines have a system called PEF (Protected
> Execution Facility) which uses a small ultravisor to allow guests to
> run in a way that they can't be eavesdropped by the hypervisor. The
> effect is roughly similar
On Tue, Jan 12, 2021 at 08:56:53AM +0100, Christian Borntraeger wrote:
>
>
> On 12.01.21 05:45, David Gibson wrote:
> [...]
> > diff --git a/include/hw/ppc/pef.h b/include/hw/ppc/pef.h
> > new file mode 100644
> > index 00..7c92391177
> > --- /dev/null
> > +++ b/include/hw/ppc/pef.h
> >
On 12.01.21 05:45, David Gibson wrote:
[...]
> diff --git a/include/hw/ppc/pef.h b/include/hw/ppc/pef.h
> new file mode 100644
> index 00..7c92391177
> --- /dev/null
> +++ b/include/hw/ppc/pef.h
> @@ -0,0 +1,26 @@
> +/*
> + * PEF (Protected Execution Facility) for POWER support
> + *
>
Some upcoming POWER machines have a system called PEF (Protected
Execution Facility) which uses a small ultravisor to allow guests to
run in a way that they can't be eavesdropped by the hypervisor. The
effect is roughly similar to AMD SEV, although the mechanisms are
quite different.
Most of the
