Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

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

diff --cc Documentation/kernel-parameters.txt
Simple merge

diff --cc arch/x86/include/asm/cpufeature.h
Simple merge

diff --cc arch/x86/kernel/cpu/common.c
index 134505e07b09ec46612a6b2bf6dee4c2c6e5b089,b0fe078614d88713a86e0dff75eb23870e6b7495..761cb354704151041b6820f38749c9e8289ec4f5
--- 1/arch/x86/kernel/cpu/common.c
--- 2/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@@ -1297,8 -1297,9 +1297,7 @@@ void __cpuinit cpu_init(void
        dbg_restore_debug_regs();
  
        fpu_init();
-       xsave_init();
  
 -      raw_local_save_flags(kernel_eflags);
 -
        if (is_uv_system())
                uv_cpu_init();
  }

diff --cc arch/x86/kernel/ptrace.c
Simple merge

diff --cc arch/x86/kernel/signal.c
Simple merge

diff --cc arch/x86/kernel/traps.c
index cfbe3fc415866c6fe7c257d210bf27391576ffa6,4f4aba0551b0833e0b0155205b4f576f94a6a488..8276dc6794cceec9ffa6a9183eb5707ece9bceeb
--- 1/arch/x86/kernel/traps.c
--- 2/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@@ -644,7 -630,8 +645,9 @@@ EXPORT_SYMBOL_GPL(math_state_restore)
  dotraplinkage void __kprobes
  do_device_not_available(struct pt_regs *regs, long error_code)
  {
 +      exception_enter(regs);
+       BUG_ON(use_eager_fpu());
+ 
  #ifdef CONFIG_MATH_EMULATION
        if (read_cr0() & X86_CR0_EM) {
                struct math_emu_info info = { };

diff --cc arch/x86/kvm/vmx.c
Simple merge

diff --cc arch/x86/kvm/x86.c
Simple merge