• Linus Torvalds's avatar
    Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ac07f5c3
    Linus Torvalds authored
    Pull x86/fpu update from Ingo Molnar:
     "The biggest change is the addition of the non-lazy (eager) FPU saving
      support model and enabling it on CPUs with optimized xsaveopt/xrstor
      FPU state saving instructions.
    
      There are also various Sparse fixes"
    
    Fix up trivial add-add conflict in arch/x86/kernel/traps.c
    
    * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86, kvm: fix kvm's usage of kernel_fpu_begin/end()
      x86, fpu: remove cpu_has_xmm check in the fx_finit()
      x86, fpu: make eagerfpu= boot param tri-state
      x86, fpu: enable eagerfpu by default for xsaveopt
      x86, fpu: decouple non-lazy/eager fpu restore from xsave
      x86, fpu: use non-lazy fpu restore for processors supporting xsave
      lguest, x86: handle guest TS bit for lazy/non-lazy fpu host models
      x86, fpu: always use kernel_fpu_begin/end() for in-kernel FPU usage
      x86, kvm: use kernel_fpu_begin/end() in kvm_load/put_guest_fpu()
      x86, fpu: remove unnecessary user_fpu_end() in save_xstate_sig()
      x86, fpu: drop_fpu() before restoring new state from sigframe
      x86, fpu: Unify signal handling code paths for x86 and x86_64 kernels
      x86, fpu: Consolidate inline asm routines for saving/restoring fpu state
      x86, signal: Cleanup ifdefs and is_ia32, is_x32
    ac07f5c3
traps.c 20.1 KB