diff options
| author | Dave Hansen <dave.hansen@linux.intel.com> | 2015-06-07 21:37:04 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-06-09 13:24:33 +0300 |
| commit | 54587653904c552c56b9dec153d7a89063394b09 (patch) | |
| tree | 4de02a9b75978d004e1dd800c1d37be6f3d5c499 /arch/x86/include/asm/mpx.h | |
| parent | a1149fc83a1f97612e72ec24a0bdbabff7b85e77 (diff) | |
| download | linux-54587653904c552c56b9dec153d7a89063394b09.tar.xz | |
x86/mpx: Introduce new 'directory entry' to 'addr' helper function
Currently, to get from a bounds directory entry to the virtual
address of a bounds table, we simply mask off a few low bits.
However, the set of bits we mask off is different for 32-bit and
64-bit binaries.
This breaks the operation out in to a helper function and also
adds a temporary variable to store the result until we are
sure we are returning one.
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: Dave Hansen <dave@sr71.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150607183704.007686CE@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/mpx.h')
| -rw-r--r-- | arch/x86/include/asm/mpx.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/include/asm/mpx.h b/arch/x86/include/asm/mpx.h index 871e5e5b0499..99d374eb7b08 100644 --- a/arch/x86/include/asm/mpx.h +++ b/arch/x86/include/asm/mpx.h @@ -45,7 +45,6 @@ #define MPX_BNDSTA_TAIL 2 #define MPX_BNDCFG_TAIL 12 #define MPX_BNDSTA_ADDR_MASK (~((1UL<<MPX_BNDSTA_TAIL)-1)) -#define MPX_BT_ADDR_MASK (~((1UL<<MPX_BD_ENTRY_TAIL)-1)) #define MPX_BNDCFG_ADDR_MASK (~((1UL<<MPX_BNDCFG_TAIL)-1)) #define MPX_BNDSTA_ERROR_CODE 0x3 |