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authorThomas Huth <thuth@redhat.com>2016-05-31 07:51:17 +0200
committerSasha Levin <sasha.levin@oracle.com>2016-06-17 09:29:29 -0400
commit3327b0c01cf4941a7692e715c158bce85011e0a6 (patch)
treed9cf170ab6d4c218e6449c4485611bcf4f5fcb9b
parentfbcda466f1b3cb237eb5416393671e9e1bece57b (diff)
powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
[ Upstream commit 7cc851039d643a2ee7df4d18177150f2c3a484f5 ] 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: ddee09c099c3 ("powerpc: Add PVR for POWER8NVL processor") Cc: stable@vger.kernel.org # v4.0+ Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
-rw-r--r--arch/powerpc/kernel/prom_init.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index fd1fe4c37599..42654360f84e 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -647,6 +647,7 @@ unsigned char ibm_architecture_vec[] = {
W(0xffff0000), W(0x003e0000), /* POWER6 */
W(0xffff0000), W(0x003f0000), /* POWER7 */
W(0xffff0000), W(0x004b0000), /* POWER8E */
+ W(0xffff0000), W(0x004c0000), /* POWER8NVL */
W(0xffff0000), W(0x004d0000), /* POWER8 */
W(0xffffffff), W(0x0f000004), /* all 2.07-compliant */
W(0xffffffff), W(0x0f000003), /* all 2.06-compliant */