diff options
| author |  Ram Pai <linuxram@us.ibm.com>
| 2018-01-18 17:50:31 -0800 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2018-01-20 22:59:00 +1100 |
| commit | 06bb53b33804613627c7ca1eda246459a7be2803 (patch) | |
| tree | 61428a22fe89565f607bf32480a6173255fb8c7b /arch/powerpc/include/asm/processor.h | |
| parent | powerpc: ability to create execute-disabled pkeys (diff) | |
| download | linux-06bb53b33804613627c7ca1eda246459a7be2803.tar.gz linux-06bb53b33804613627c7ca1eda246459a7be2803.tar.bz2 linux-06bb53b33804613627c7ca1eda246459a7be2803.zip | |
powerpc: store and restore the pkey state across context switches
Store and restore the AMR, IAMR and UAMOR register state of the task
before scheduling out and after scheduling in, respectively.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index bdab3b74eb98..01299cdc9806 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -309,6 +309,11 @@ struct thread_struct { struct thread_vr_state ckvr_state; /* Checkpointed VR state */ unsigned long ckvrsave; /* Checkpointed VRSAVE */ #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ +#ifdef CONFIG_PPC_MEM_KEYS + unsigned long amr; + unsigned long iamr; + unsigned long uamor; +#endif #ifdef CONFIG_KVM_BOOK3S_32_HANDLER void* kvm_shadow_vcpu; /* KVM internal data */ #endif /* CONFIG_KVM_BOOK3S_32_HANDLER */ |