• Linus Torvalds's avatar
    Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5645688f
    Linus Torvalds authored
    Pull x86 asm updates from Ingo Molnar:
     "The main changes in this development cycle were:
    
       - a large number of call stack dumping/printing improvements: higher
         robustness, better cross-context dumping, improved output, etc.
         (Josh Poimboeuf)
    
       - vDSO getcpu() performance improvement for future Intel CPUs with
         the RDPID instruction (Andy Lutomirski)
    
       - add two new Intel AVX512 features and the CPUID support
         infrastructure for it: AVX512IFMA and AVX512VBMI. (Gayatri Kammela,
         He Chen)
    
       - more copy-user unification (Borislav Petkov)
    
       - entry code assembly macro simplifications (Alexander Kuleshov)
    
       - vDSO C/R support improvements (Dmitry Safonov)
    
       - misc fixes and cleanups (Borislav Petkov, Paul Bolle)"
    
    * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
      scripts/decode_stacktrace.sh: Fix address line detection on x86
      x86/boot/64: Use defines for page size
      x86/dumpstack: Make stack name tags more comprehensible
      selftests/x86: Add test_vdso to test getcpu()
      x86/vdso: Use RDPID in preference to LSL when available
      x86/dumpstack: Handle NULL stack pointer in show_trace_log_lvl()
      x86/cpufeatures: Enable new AVX512 cpu features
      x86/cpuid: Provide get_scattered_cpuid_leaf()
      x86/cpuid: Cleanup cpuid_regs definitions
      x86/copy_user: Unify the code by removing the 64-bit asm _copy_*_user() variants
      x86/unwind: Ensure stack grows down
      x86/vdso: Set vDSO pointer only after success
      x86/prctl/uapi: Remove #ifdef for CHECKPOINT_RESTORE
      x86/unwind: Detect bad stack return address
      x86/dumpstack: Warn on stack recursion
      x86/unwind: Warn on bad frame pointer
      x86/decoder: Use stderr if insn sanity test fails
      x86/decoder: Use stdout if insn decoder test is successful
      mm/page_alloc: Remove kernel address exposure in free_reserved_area()
      x86/dumpstack: Remove raw stack dump
      ...
    5645688f
dumpstack.c 7.67 KB