diff options
| author | Thomas Huth <thuth@redhat.com> | 2016-05-31 07:51:17 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-06-17 09:29:29 -0400 |
| commit | 3327b0c01cf4941a7692e715c158bce85011e0a6 (patch) | |
| tree | d9cf170ab6d4c218e6449c4485611bcf4f5fcb9b | |
| parent | fbcda466f1b3cb237eb5416393671e9e1bece57b (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.c | 1 |
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 */ |