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

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commit 7cc851039d upstream.

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).

Fixes: ddee09c099 ("powerpc: Add PVR for POWER8NVL processor")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Thomas Huth 2016-05-31 07:51:17 +02:00 • committed by Greg Kroah-Hartman

parent cac2863ff3

commit a976f62a60

1 changed files with 1 additions and 0 deletions

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arch/powerpc/kernel/prom_init.c

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