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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-07-09 08:59:37 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-20 22:57:58 +1000 |
| commit | e10cc8715d180509a367d3ab25d40e4a1612cb2f (patch) | |
| tree | bbb012385737f7d42b1b64acb2046007d679438f /arch/powerpc/include/asm/mmu.h | |
| parent | d3cd91fb8d2e202cf8ebb6f271898aaf37ecda8f (diff) | |
| download | lwn-e10cc8715d180509a367d3ab25d40e4a1612cb2f.tar.gz lwn-e10cc8715d180509a367d3ab25d40e4a1612cb2f.zip | |
powerpc/book3s64/kuep: Add MMU_FTR_KUEP
This will be used to enable/disable Kernel Userspace Execution
Prevention (KUEP).
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200709032946.881753-15-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 17cbaf132631..255a1837e9f7 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -29,6 +29,11 @@ */ /* + * Support for KUEP feature. + */ +#define MMU_FTR_KUEP ASM_CONST(0x00000400) + +/* * Support for memory protection keys. */ #define MMU_FTR_PKEY ASM_CONST(0x00000800) @@ -189,6 +194,10 @@ enum { #ifdef CONFIG_PPC_MEM_KEYS MMU_FTR_PKEY | #endif +#ifdef CONFIG_PPC_KUEP + MMU_FTR_KUEP | +#endif /* CONFIG_PPC_KUAP */ + 0, }; |