[PATCH] powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call

Thomas Huth thuth at redhat.com
Tue May 31 20:19:53 AEST 2016

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?


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