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| author |   Michael Neuling <mikey@neuling.org> | 2018-03-27 15:37:21 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-03-27 23:55:32 +1100 |
| commit | e8ebedbf3131ce2db0c7092a27f752ab365eef53 (patch) | |
| tree | 07da44b7f87118b72475f66ddd62b72843ceeba7 /arch/powerpc/include/asm/hvcall.h | |
| parent | KVM: PPC: Book3S HV: Return error from h_set_mode(SET_DAWR) on POWER9 (diff) | |
| download | linux-dev-e8ebedbf3131ce2db0c7092a27f752ab365eef53.tar.xz linux-dev-e8ebedbf3131ce2db0c7092a27f752ab365eef53.zip | |
KVM: PPC: Book3S HV: Return error from h_set_dabr() on POWER9
POWER7 compat mode guests can use h_set_dabr on POWER9. POWER9 should
use the DAWR but since it's disabled there we can't.
This returns H_UNSUPPORTED on a h_set_dabr() on POWER9 where the DAWR
is disabled.
Current Linux guests ignore this error, so they will silently not get
the DAWR (sigh). The same error code is being used by POWERVM in this
case.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/hvcall.h')
| -rw-r--r-- | arch/powerpc/include/asm/hvcall.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index eca3f9c68907..e87d465af4f8 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -88,6 +88,7 @@ #define H_P8 -61 #define H_P9 -62 #define H_TOO_BIG -64 +#define H_UNSUPPORTED -67 #define H_OVERLAP -68 #define H_INTERRUPT -69 #define H_BAD_DATA -70 |