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[PATCH 00/15] [v3] x86, fpu: XSAVE cleanups and sanity checks

From Dave Hansen <dave@sr71.net>
Newsgroups linux.kernel
Subject [PATCH 00/15] [v3] x86, fpu: XSAVE cleanups and sanity checks
Date 2015-09-01 00:30 +0200
Message-ID <q3FKq-4gF-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Changes in v3:
 * rework XSTATE_* macros using Ingo's suggested naming
 * change state size printk to be in decimal
 * add some more sanity-checking to detect and work around
   an undersized 'xregs_state'
 * remove "nr_" from some of the names used.

Changes in v2:
 * remove references to Processor Trace XSAVE state
   (will defer to another patch set)
 * Remove some cruft from last patch
 * move last_good_offset fix in to the patch that
   introduced it

These patches make some updates to the x86 XSAVE code.

They have been build and boot tested including on hardware
and/or simulators with AVX-512 and MPX.  It boots in all
of the tested configurations without hitting any of the
new warnings in this code.

There are basically 5 things going on here:
 * removal of the LWP (lightweight profiling) code
 * naming and type cleanups
 * removal of xfeatures_nr variable
 * addition of AVX-512 C structures
 * new sanity checks of XSAVE buffer sizing

Cc: Ingo Molnar <mingo@redhat.com>
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
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Thread

[PATCH 00/15] [v3] x86, fpu: XSAVE cleanups and sanity checks Dave Hansen <dave@sr71.net> - 2015-09-01 00:30 +0200
  [PATCH 10/15] x86, fpu: rework MPX 'xstate' types Dave Hansen <dave@sr71.net> - 2015-09-01 00:30 +0200
  [PATCH 15/15] x86, fpu: check CPU-provided sizes against struct declarations Dave Hansen <dave@sr71.net> - 2015-09-01 00:30 +0200
  [PATCH 02/15] x86, fpu: move XSAVE-disabling code to a helper Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 13/15] x86, fpu: correct and check XSAVE xstate size calculations Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 05/15] x86, fpu: XSAVE macro renames Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
    Re: [PATCH 05/15] x86, fpu: XSAVE macro renames Dave Hansen <dave@sr71.net> - 2015-09-01 01:50 +0200
  [PATCH 11/15] x86, fpu: rework YMM definition Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 06/15] x86, fpu: rename XFEATURES_NR_MAX Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 04/15] x86, fpu: kill LWP support Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 09/15] x86, fpu: add helper xfeature_enabled() instead of test_bit() Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 07/15] x86, fpu: rework XSTATE_* macros to remove magic '2' Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 12/15] x86, fpu: add C structures for AVX-512 state components Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 03/15] x86, fpu: remove XSTATE_RESERVE Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200
  [PATCH 08/15] x86, fpu: remove xfeature_nr Dave Hansen <dave@sr71.net> - 2015-09-01 00:40 +0200

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