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Linus Torvalds 0a319ef75d Most of the changes here related to 'XSAVES supervisor state' support, 
which is a feature that allows kernel-only data to be automatically
 saved/restored by the FPU context switching code.
 
 CPU features that can be supported this way are Intel PT, 'PASID' and
 CET features.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-fpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 FPU updates from Ingo Molnar:
 "Most of the changes here related to 'XSAVES supervisor state' support,
  which is a feature that allows kernel-only data to be automatically
  saved/restored by the FPU context switching code.

  CPU features that can be supported this way are Intel PT, 'PASID' and
  CET features"

* tag 'x86-fpu-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu/xstate: Restore supervisor states for signal return
  x86/fpu/xstate: Preserve supervisor states for the slow path in __fpu__restore_sig()
  x86/fpu: Introduce copy_supervisor_to_kernel()
  x86/fpu/xstate: Update copy_kernel_to_xregs_err() for supervisor states
  x86/fpu/xstate: Update sanitize_restored_xstate() for supervisor xstates
  x86/fpu/xstate: Define new functions for clearing fpregs and xstates
  x86/fpu/xstate: Introduce XSAVES supervisor states
  x86/fpu/xstate: Separate user and supervisor xfeatures mask
  x86/fpu/xstate: Define new macros for supervisor and user xstates
  x86/fpu/xstate: Rename validate_xstate_header() to validate_user_xstate_header()
 		2020-06-01 14:09:26 -07:00
..
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
bugs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
core.c x86/fpu/xstate: Define new functions for clearing fpregs and xstates 2020-05-13 13:41:50 +02:00
init.c x86/fpu/xstate: Define new macros for supervisor and user xstates 2020-05-12 20:34:38 +02:00
regset.c x86/fpu/xstate: Rename validate_xstate_header() to validate_user_xstate_header() 2020-05-12 20:20:32 +02:00
signal.c x86/fpu/xstate: Restore supervisor states for signal return 2020-05-16 12:20:50 +02:00
xstate.c Most of the changes here related to 'XSAVES supervisor state' support, 2020-06-01 14:09:26 -07:00