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* [PATCH v2 0/6] CPUID and FPU fixes
@ 2017-01-18 19:15 Andy Lutomirski
  2017-01-18 19:15 ` [PATCH v2 1/6] x86/cpu: Add X86_FEATURE_CPUID Andy Lutomirski
                   ` (5 more replies)
  0 siblings, 6 replies; 15+ messages in thread
From: Andy Lutomirski @ 2017-01-18 19:15 UTC (permalink / raw)
  To: X86 ML
  Cc: One Thousand Gnomes, Borislav Petkov, linux-kernel, Brian Gerst,
	Matthew Whitehead, Andy Lutomirski

Our CPUID-less FPU detection code was terminally broken and, as far
as I can tell, it's been broken for a long, long time.  This series
tries to improve the situation.

Changes from v1:
 - Whitespace fixes
 - Prettify the FPU probing code (Borislav)
 - Improve logging (Borislav)

Andy Lutomirski (5):
  x86/cpu: Factor out application of forced cpu caps
  x86/cpu: Re-apply forced caps every time cpu caps are re-read
  x86/fpu: Fix "x86/fpu: Legacy x87 FPU detected" message
  x86/fpu: Fix CPUID-less FPU detection
  x86/fpu: Fix the "Giving up, no FPU found" test

Borislav Petkov (1):
  x86/cpu: Add X86_FEATURE_CPUID

 arch/x86/include/asm/cpufeatures.h |  2 +-
 arch/x86/kernel/cpu/common.c       | 34 +++++++++++++++++++++++-----------
 arch/x86/kernel/fpu/init.c         | 31 +++++++++++++++++--------------
 arch/x86/kernel/fpu/xstate.c       |  8 +++++++-
 4 files changed, 48 insertions(+), 27 deletions(-)

-- 
2.9.3

^ permalink raw reply	[flat|nested] 15+ messages in thread

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Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-18 19:15 [PATCH v2 0/6] CPUID and FPU fixes Andy Lutomirski
2017-01-18 19:15 ` [PATCH v2 1/6] x86/cpu: Add X86_FEATURE_CPUID Andy Lutomirski
2017-01-25 11:40   ` [tip:x86/fpu] " tip-bot for Borislav Petkov
2017-01-18 19:15 ` [PATCH v2 2/6] x86/cpu: Factor out application of forced cpu caps Andy Lutomirski
2017-01-25 11:40   ` [tip:x86/fpu] x86/cpu: Factor out application of forced CPU caps tip-bot for Andy Lutomirski
2017-01-18 19:15 ` [PATCH v2 3/6] x86/cpu: Re-apply forced caps every time cpu caps are re-read Andy Lutomirski
2017-01-19 11:23   ` Borislav Petkov
2017-01-25 11:41   ` [tip:x86/fpu] x86/cpu: Re-apply forced caps every time CPU " tip-bot for Andy Lutomirski
2017-01-18 19:15 ` [PATCH v2 4/6] x86/fpu: Fix "x86/fpu: Legacy x87 FPU detected" message Andy Lutomirski
2017-01-25 11:42   ` [tip:x86/fpu] " tip-bot for Andy Lutomirski
2017-01-18 19:15 ` [PATCH v2 5/6] x86/fpu: Fix CPUID-less FPU detection Andy Lutomirski
2017-01-19 11:23   ` Borislav Petkov
2017-01-25 11:42   ` [tip:x86/fpu] " tip-bot for Andy Lutomirski
2017-01-18 19:15 ` [PATCH v2 6/6] x86/fpu: Fix the "Giving up, no FPU found" test Andy Lutomirski
2017-01-25 11:43   ` [tip:x86/fpu] " tip-bot for Andy Lutomirski

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