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2016-07-01x86/Documentation: Fix various typos in Documentation/x86/ filesMasanari Iida
Signed-off-by: Masanari Iida <standby24x7@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: corbet@lwn.net Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/20160701034601.30308-1-standby24x7@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-28Documentation: x86: fix spelling mistakesEric Engestrom
Signed-off-by: Eric Engestrom <eric@engestrom.ch> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2014-12-15x86, mpx: Give MPX a real config option promptDave Hansen
Give MPX a real config option. The CPUs that support it (referenced here): https://software.intel.com/en-us/forums/topic/402393 are not available publicly yet. Right now only the software emulator provides MPX for the general public. [ tglx: Make it default off. There is no point in having it on right now as no hardware and no proper tooling support are available ] Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Hansen <dave@sr71.net> Link: http://lkml.kernel.org/r/20141212183836.2569D58D@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-15x86, mpx: Update documentationDave Hansen
I was writing some MPX test programs and realized that the current design makes it tricky. I did something like: bndcfgu |= bnd_dir | BNDCFGU_ENABLE; xrstor(); printf("xrstor done"); // #BR bounds exception here prctl(MPX_ENABLE_MANAGEMENT); and then compiled the app with "-fcheck-pointer-bounds -mmpx" to enable MPX instrumentation. The problem is that there is MPX instrumentation inserted in to the area of the printf(). The kernel gets a bounds exception and since management isn't yet enabled, it SIGSEGV's. Add a bit to the documentation to explain a way around this and where apps need to be careful. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dave Hansen <dave@sr71.net> Link: http://lkml.kernel.org/r/20141212183835.8C581B3E@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-11-18x86, mpx: Add documentation on Intel MPXQiaowei Ren
This patch adds the Documentation/x86/intel_mpx.txt file with some information about Intel MPX. Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: linux-mm@kvack.org Cc: linux-mips@linux-mips.org Cc: Dave Hansen <dave@sr71.net> Link: http://lkml.kernel.org/r/20141114151832.7FDB1720@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>