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authorRui Wang <rui.y.wang@intel.com>2017-12-18 11:34:10 +0300
committerIngo Molnar <mingo@kernel.org>2018-02-15 03:15:52 +0300
commit961888b1d76d84efc66a8f5604b06ac12ac2f978 (patch)
tree86b0a55fa18b843cf21efa3a7c98e055567e72a4 /arch/x86/lib/cpu.c
parent1299ef1d8870d2d9f09a5aadf2f8b2c887c2d033 (diff)
downloadlinux-961888b1d76d84efc66a8f5604b06ac12ac2f978.tar.xz
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
For distributions with old userspace header files, the _sigfault structure is different. mpx-mini-test fails with the following error: [root@Purley]# mpx-mini-test_64 tabletest XSAVE is supported by HW & OS XSAVE processor supported state mask: 0x2ff XSAVE OS supported state mask: 0x2ff BNDREGS: size: 64 user: 1 supervisor: 0 aligned: 0 BNDCSR: size: 64 user: 1 supervisor: 0 aligned: 0 starting mpx bounds table test ERROR: siginfo bounds do not match shadow bounds for register 0 Fix it by using the correct offset of _lower/_upper in _sigfault. RHEL needs this patch to work. Signed-off-by: Rui Wang <rui.y.wang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dave.hansen@linux.intel.com Fixes: e754aedc26ef ("x86/mpx, selftests: Add MPX self test") Link: http://lkml.kernel.org/r/1513586050-1641-1-git-send-email-rui.y.wang@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/lib/cpu.c')
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