• Linus Torvalds's avatar
    Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ba33ea81
    Linus Torvalds authored
    Pull x86 asm updates from Ingo Molnar:
     "This is another big update. Main changes are:
       - lots of x86 system call (and other traps/exceptions) entry code
         enhancements.  In particular the complex parts of the 64-bit entry
         code have been migrated to C code as well, and a number of dusty
         corners have been refreshed.  (Andy Lutomirski)
       - vDSO special mapping robustification and general cleanups (Andy
       - cpufeature refactoring, cleanups and speedups (Borislav Petkov)
       - lots of other changes ..."
    * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (64 commits)
      x86/cpufeature: Enable new AVX-512 features
      x86/entry/traps: Show unhandled signal for i386 in do_trap()
      x86/entry: Call enter_from_user_mode() with IRQs off
      x86/entry/32: Change INT80 to be an interrupt gate
      x86/entry: Improve system call entry comments
      x86/entry: Remove TIF_SINGLESTEP entry work
      x86/entry/32: Add and check a stack canary for the SYSENTER stack
      x86/entry/32: Simplify and fix up the SYSENTER stack #DB/NMI fixup
      x86/entry: Only allocate space for tss_struct::SYSENTER_stack if needed
      x86/entry: Vastly simplify SYSENTER TF (single-step) handling
      x86/entry/traps: Clear DR6 early in do_debug() and improve the comment
      x86/entry/traps: Clear TIF_BLOCKSTEP on all debug exceptions
      x86/entry/32: Restore FLAGS on SYSEXIT
      x86/entry/32: Filter NT and speed up AC filtering in SYSENTER
      x86/entry/compat: In SYSENTER, sink AC clearing below the existing FLAGS test
      selftests/x86: In syscall_nt, test NT|TF as well
      x86/asm-offsets: Remove PARAVIRT_enabled
      x86/entry/32: Introduce and use X86_BUG_ESPFIX instead of paravirt_enabled
      uprobes: __create_xol_area() must nullify xol_mapping.fault
      x86/cpufeature: Create a new synthetic cpu capability for machine check recovery
Kconfig.debug 10.8 KB