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| author | Thomas Huth <thuth@redhat.com> | 2016-05-31 07:51:17 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-06-01 13:47:34 +1000 |
| commit | 7cc851039d643a2ee7df4d18177150f2c3a484f5 (patch) | |
| tree | cc6a9dc5a3b6bfbbbdb9194d2908b15ca2a4bd6b /arch | |
| parent | 157d4d0620879b7d89ca1e3cd7bf0be1e29be198 (diff) | |
| download | linux-0-day-7cc851039d643a2ee7df4d18177150f2c3a484f5.tar.gz linux-0-day-7cc851039d643a2ee7df4d18177150f2c3a484f5.tar.xz | |
powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
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>
Diffstat (limited to 'arch')
| -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 da5192590c445..ccd2037c797f9 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -656,6 +656,7 @@ 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 */ |