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| author | Dave Hansen <dave.hansen@linux.intel.com> | 2015-06-07 11:37:06 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-06-09 12:24:34 +0200 |
| commit | 97ac46a5087eaf87fd76ff7bb31ec9c896010442 (patch) | |
| tree | 9947e89e35381781675e15d2bf0f1fd134f343ea | |
| parent | bea03c50b871a2fa922f31ad7c9993bb4fc7b192 (diff) | |
| download | linux-97ac46a5087eaf87fd76ff7bb31ec9c896010442.tar.gz | |
x86/mpx: Allow 32-bit binaries on 64-bit kernels again
Now that the bugs in mixed mode MPX handling are fixed, re-allow 32-bit binaries on 64-bit kernels again. 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/20150607183706.70277DAD@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/mm/mpx.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c index 6233d5195f01..7a657f58bbea 100644 --- a/arch/x86/mm/mpx.c +++ b/arch/x86/mm/mpx.c @@ -367,12 +367,6 @@ static __user void *mpx_get_bounds_dir(void) return MPX_INVALID_BOUNDS_DIR; /* - * 32-bit binaries on 64-bit kernels are currently - * unsupported. - */ - if (IS_ENABLED(CONFIG_X86_64) && test_thread_flag(TIF_IA32)) - return MPX_INVALID_BOUNDS_DIR; - /* * The bounds directory pointer is stored in a register * only accessible if we first do an xsave. */ |