diff options
| author |   Ram Pai <linuxram@us.ibm.com> | 2018-01-18 17:50:40 -0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-01-20 22:59:04 +1100 |
| commit | e6c2a4797e101a25eced94aa9e1fc42c30247aec (patch) | |
| tree | 97ab4186d328b99f469a0252f419a2f692524139 /arch/powerpc/include/asm/reg.h | |
| parent | powerpc: implementation for arch_vma_access_permitted() (diff) | |
| download | linux-dev-e6c2a4797e101a25eced94aa9e1fc42c30247aec.tar.xz linux-dev-e6c2a4797e101a25eced94aa9e1fc42c30247aec.zip | |
powerpc: Handle exceptions caused by pkey violation
Handle Data and Instruction exceptions caused by memory
protection-key.
The CPU will detect the key fault if the HPTE is already
programmed with the key.
However if the HPTE is not hashed, a key fault will not
be detected by the hardware. The software will detect
pkey violation in such a case.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/reg.h')
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index b779f3ccd412..ffc9990e8040 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -312,7 +312,6 @@ DSISR_BAD_EXT_CTRL) #define DSISR_BAD_FAULT_64S (DSISR_BAD_FAULT_32S | \ DSISR_ATTR_CONFLICT | \ - DSISR_KEYFAULT | \ DSISR_UNSUPP_MMU | \ DSISR_PRTABLE_FAULT | \ DSISR_ICSWX_NO_CT | \ |