[PATCH v3 14/41] powerpc/book3s64/kuep: Add MMU_FTR_KUEP
From: Aneesh Kumar K.V <hidden>
Date: 2020-06-10 10:19:15
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
This will be used to enable/disable Kernel Userspace Execution Prevention (KUEP). Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/include/asm/mmu.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 72966d3d8f64..94435f85e3bc 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h@@ -24,6 +24,7 @@ /* Radix page table supported and enabled */ #define MMU_FTR_TYPE_RADIX ASM_CONST(0x00000040) #define MMU_FTR_PKEY ASM_CONST(0x00000080) +#define MMU_FTR_KUEP ASM_CONST(0x00000100) /* * Individual features below.
@@ -181,6 +182,10 @@ enum { #ifdef CONFIG_PPC_MEM_KEYS MMU_FTR_PKEY | #endif +#ifdef CONFIG_PPC_KUEP + MMU_FTR_KUEP | +#endif /* CONFIG_PPC_KUAP */ + 0, };
--
2.26.2