Re: [PATCH 00/19] x86, mpx updates for 4.2 (take 8)
On 06/01/2015 04:14 AM, Ingo Molnar wrote: > So you already sent 'take 8', so it's unclear to me what changed in this > series. > > Also, only 1,3,4,5 made it to lkml it appears. (it's not in my spam box > either.) I accidentally send that. I'll send a real series with a proper changelog shortly. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 00/19] x86, mpx updates for 4.2 (take 8)
* Dave Hansen wrote: > > Changes from take 7 / v22: > * Add Thomas's reviewed-by > * merge with tip/x86/fpu changes > * Fix tiny spelling nit So you already sent 'take 8', so it's unclear to me what changed in this series. Also, only 1,3,4,5 made it to lkml it appears. (it's not in my spam box either.) Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 00/19] x86, mpx updates for 4.2 (take 8)
Changes from take 7 / v22: * Add Thomas's reviewed-by * merge with tip/x86/fpu changes * Fix tiny spelling nit Changes from take 6 / v21: * Address a bunch of Thomas's review comments. Changes from take 5 / v20: * Fix get_xsave_addr() to consult xstate_bv in anticipation of fixes to xsave code. * Bug fix for when an VMA being unmapped has neighbors which are bounds tables. * Rewrite unmapping code. I didn't do this lightly. It was not originally my own code, and I resisted changing it because it worked. But, I started bug chasing and decided it was unmaintainable. The rewrite ended up removing about 20% of the unmapping code and made it much simpler. Changes from take 4 / v19: * Do not pass a task_struct around when we are really just going to operate on current Changes from take 3 / v18 (all minor): * use DECLARE_EVENT_CLASS()/DEFINE_EVENT() for the ranged tracepoints to save 10 lines of code. Changes from take 2 / v17 (all minor): * fix a couple of whitespace borkages caught by checkpatch, and a spelling error or two. * replace printk with pr_info() for boot disable * change trace print format for address intervals * fix up variable name in tsk_get_xsave_addr() comment * remove tsk_get_xsave_field() GPL export * fix up Qiaowei's From: -- Hi x86 maintainers, There are a few basic things going on here: 1. Make FPU/xsave code preempt safe and work properly 2. Add trace points to make kernel and app debugging easier 3. Add a boot-time disable for mpx 4. Rewrite the unmapping code. 5. Support 32-bit binaries to run on 64-bit kernels This set is also available against tip/x86/fpu (8c05f05edb) in git: git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx.git mpx-v23 Dave Hansen (19): x86, mpx, xsave: Fix up bad get_xsave_addr() assumptions x86, fpu: Wrap get_xsave_addr() to make it safer x86, mpx: Use new get_xsave_field_ptr() x86, mpx: Cleanup: Do not pass task around when unnecessary x86, mpx: remove redundant MPX_BNDCFG_ADDR_MASK x86, mpx: Restrict mmap size check to bounds tables x86, mpx: boot-time disable x86, mpx: trace #BR exceptions x86, mpx: trace entry to bounds exception paths x86, mpx: Trace the attempts to find bounds tables x86, mpx: trace allocation of new bounds tables x86: make is_64bit_mm() widely available x86, mpx: Add temporary variable to reduce masking x86, mpx: new directory entry to addr helper x86, mpx: do 32-bit-only cmpxchg for 32-bit apps x86, mpx: support 32-bit binaries on 64-bit kernel x86, mpx: rewrite unmap code x86, mpx: do not count MPX VMAs as neighbors when unmapping x86, mpx: allow mixed binaries again Documentation/kernel-parameters.txt | 4 + arch/x86/include/asm/fpu/xstate.h | 1 + arch/x86/include/asm/mmu_context.h | 13 + arch/x86/include/asm/mpx.h | 74 +++--- arch/x86/include/asm/processor.h| 12 +- arch/x86/include/asm/trace/mpx.h| 131 ++ arch/x86/kernel/cpu/common.c| 16 ++ arch/x86/kernel/fpu/xstate.c| 78 +- arch/x86/kernel/traps.c | 18 +- arch/x86/kernel/uprobes.c | 10 +- arch/x86/mm/mpx.c | 508 ++-- kernel/sys.c| 8 +- 12 files changed, 606 insertions(+), 267 deletions(-) create mode 100644 arch/x86/include/asm/trace/mpx.h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 00/19] x86, mpx updates for 4.2 (take 8)
Changes from take 7 / v22: * Add Thomas's reviewed-by * merge with tip/x86/fpu changes * Fix tiny spelling nit Changes from take 6 / v21: * Address a bunch of Thomas's review comments. Changes from take 5 / v20: * Fix get_xsave_addr() to consult xstate_bv in anticipation of fixes to xsave code. * Bug fix for when an VMA being unmapped has neighbors which are bounds tables. * Rewrite unmapping code. I didn't do this lightly. It was not originally my own code, and I resisted changing it because it worked. But, I started bug chasing and decided it was unmaintainable. The rewrite ended up removing about 20% of the unmapping code and made it much simpler. Changes from take 4 / v19: * Do not pass a task_struct around when we are really just going to operate on current Changes from take 3 / v18 (all minor): * use DECLARE_EVENT_CLASS()/DEFINE_EVENT() for the ranged tracepoints to save 10 lines of code. Changes from take 2 / v17 (all minor): * fix a couple of whitespace borkages caught by checkpatch, and a spelling error or two. * replace printk with pr_info() for boot disable * change trace print format for address intervals * fix up variable name in tsk_get_xsave_addr() comment * remove tsk_get_xsave_field() GPL export * fix up Qiaowei's From: -- Hi x86 maintainers, There are a few basic things going on here: 1. Make FPU/xsave code preempt safe and work properly 2. Add trace points to make kernel and app debugging easier 3. Add a boot-time disable for mpx 4. Rewrite the unmapping code. 5. Support 32-bit binaries to run on 64-bit kernels This set is also available against tip/x86/fpu (8c05f05edb) in git: git://git.kernel.org/pub/scm/linux/kernel/git/daveh/x86-mpx.git mpx-v23 Dave Hansen (19): x86, mpx, xsave: Fix up bad get_xsave_addr() assumptions x86, fpu: Wrap get_xsave_addr() to make it safer x86, mpx: Use new get_xsave_field_ptr() x86, mpx: Cleanup: Do not pass task around when unnecessary x86, mpx: remove redundant MPX_BNDCFG_ADDR_MASK x86, mpx: Restrict mmap size check to bounds tables x86, mpx: boot-time disable x86, mpx: trace #BR exceptions x86, mpx: trace entry to bounds exception paths x86, mpx: Trace the attempts to find bounds tables x86, mpx: trace allocation of new bounds tables x86: make is_64bit_mm() widely available x86, mpx: Add temporary variable to reduce masking x86, mpx: new directory entry to addr helper x86, mpx: do 32-bit-only cmpxchg for 32-bit apps x86, mpx: support 32-bit binaries on 64-bit kernel x86, mpx: rewrite unmap code x86, mpx: do not count MPX VMAs as neighbors when unmapping x86, mpx: allow mixed binaries again Documentation/kernel-parameters.txt | 4 + arch/x86/include/asm/fpu/xstate.h | 1 + arch/x86/include/asm/mmu_context.h | 13 + arch/x86/include/asm/mpx.h | 74 +++--- arch/x86/include/asm/processor.h| 12 +- arch/x86/include/asm/trace/mpx.h| 131 ++ arch/x86/kernel/cpu/common.c| 16 ++ arch/x86/kernel/fpu/xstate.c| 78 +- arch/x86/kernel/traps.c | 18 +- arch/x86/kernel/uprobes.c | 10 +- arch/x86/mm/mpx.c | 508 ++-- kernel/sys.c| 8 +- 12 files changed, 606 insertions(+), 267 deletions(-) create mode 100644 arch/x86/include/asm/trace/mpx.h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
