[PATCH] powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
mpe at ellerman.id.au
Tue May 31 20:32:25 AEST 2016
On Tue, 2016-05-31 at 12:19 +0200, Thomas Huth wrote:
> On 31.05.2016 12:04, Michael Ellerman wrote:
> > On Tue, 2016-05-31 at 07:51 +0200, Thomas Huth wrote:
> > > If we do not provide the PVR for POWER8NVL, a guest on this
> > > system currently ends up in PowerISA 2.06 compatibility mode on
> > > KVM, since QEMU does not provide a generic PowerISA 2.07 mode yet.
> > > So some new instructions from POWER8 (like "mtvsrd") get disabled
> > > for the guest, resulting in crashes when using code compiled
> > > explicitly for POWER8 (e.g. with the "-mcpu=power8" option of GCC).
> > >
> > > Signed-off-by: Thomas Huth <thuth at redhat.com>
> > So this should say:
> > Fixes: ddee09c099c3 ("powerpc: Add PVR for POWER8NVL processor")
> > And therefore:
> > Cc: stable at vger.kernel.org # v4.0+
> > Am I right?
> Right. (At least for virtualized systems ... for bare-metal systems,
> that original patch was enough). So shall I resubmit my patch with these
> two lines, or could you add them when you pick this patch up?
Thanks, I'll add them here.
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