diff options
| author | Dave Hansen <dave.hansen@linux.intel.com> | 2016-02-13 00:02:32 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-02-18 21:46:31 +0300 |
| commit | 66d375709d2c891acc639538fd3179fa0cbb0daf (patch) | |
| tree | e4130fdef51a5d4820e8e870d34a42d7b384c9b0 /arch/x86/Kconfig | |
| parent | e6bfb70959a0ca6ddedb29e779a293c6f71ed0e7 (diff) | |
| download | linux-66d375709d2c891acc639538fd3179fa0cbb0daf.tar.xz | |
mm/core, x86/mm/pkeys: Add arch_validate_pkey()
The syscall-level code is passed a protection key and need to
return an appropriate error code if the protection key is bogus.
We will be using this in subsequent patches.
Note that this also begins a series of arch-specific calls that
we need to expose in otherwise arch-independent code. We create
a linux/pkeys.h header where we will put *all* the stubs for
these functions.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/20160212210232.774EEAAB@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index b8754348de4d..eda18cecdbbd 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -156,6 +156,7 @@ config X86 select X86_DEV_DMA_OPS if X86_64 select X86_FEATURE_NAMES if PROC_FS select ARCH_USES_HIGH_VMA_FLAGS if X86_INTEL_MEMORY_PROTECTION_KEYS + select ARCH_HAS_PKEYS if X86_INTEL_MEMORY_PROTECTION_KEYS config INSTRUCTION_DECODER def_bool y |