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/mmu_context.h | |
| parent | dcf872956d444bbbd46f601024ea989ced03f8a7 (diff) | |
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/mmu_context.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu_context.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 7d0f2d05189b..4d69223d217a 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -195,6 +195,9 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma, #ifndef CONFIG_PPC_MEM_KEYS #define pkey_mm_init(mm) +#define thread_pkey_regs_save(thread) +#define thread_pkey_regs_restore(new_thread, old_thread) +#define thread_pkey_regs_init(thread) #endif /* CONFIG_PPC_MEM_KEYS */ #endif /* __KERNEL__ */ |