linux-kernel - [PATCH 0/6] x86, fpu: cleanups, introduce non-lazy FPU restore for xsave

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Date:	Fri, 24 Aug 2012 14:12:56 -0700
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	hpa@...or.com, mingo@...nel.org, torvalds@...ux-foundation.org,
	andreas.herrmann3@....com, bp@...64.org, robert.richter@....com
Cc:	linux-kernel@...r.kernel.org,
	Suresh Siddha <suresh.b.siddha@...el.com>
Subject: [PATCH 0/6] x86, fpu: cleanups, introduce non-lazy FPU restore for xsave

These patches are against tip/x86/fpu. Few cleanups and more improtantly
this series introduces the non-lazy FPU restore mechanism for processors
supporting xsave feature. More details in the individual patch changelogs.

Thanks.

Suresh Siddha (6):
  x86, fpu: drop_fpu() before restoring new state from sigframe
  x86, fpu: remove unnecessary user_fpu_end() in save_xstate_sig()
  x86, kvm: use kernel_fpu_begin/end() in kvm_load/put_guest_fpu()
  x86, fpu: always use kernel_fpu_begin/end() for in-kernel FPU usage
  lguest, x86: handle guest TS bit for lazy/non-lazy fpu host models
  x86, fpu: use non-lazy fpu restore for processors supporting xsave

 arch/x86/include/asm/fpu-internal.h |  118 +++++++++++++++++++---------------
 arch/x86/include/asm/i387.h         |    1 +
 arch/x86/include/asm/xor_32.h       |   56 +++--------------
 arch/x86/include/asm/xor_64.h       |   61 +++---------------
 arch/x86/include/asm/xor_avx.h      |   54 ++++------------
 arch/x86/include/asm/xsave.h        |    1 +
 arch/x86/kernel/i387.c              |   20 +++++-
 arch/x86/kernel/process.c           |   12 +++-
 arch/x86/kernel/process_32.c        |    4 -
 arch/x86/kernel/process_64.c        |    4 -
 arch/x86/kernel/traps.c             |    5 +-
 arch/x86/kernel/xsave.c             |   58 +++++++++++++----
 arch/x86/kvm/x86.c                  |    3 +-
 drivers/lguest/x86/core.c           |   10 ++-
 14 files changed, 180 insertions(+), 227 deletions(-)

-- 
1.7.6.5

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