From: Andy Lutomirski <luto@kernel.org>
To: X86 ML <x86@kernel.org>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
Borislav Petkov <bp@alien8.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Brian Gerst <brgerst@gmail.com>,
Matthew Whitehead <tedheadster@gmail.com>,
Andy Lutomirski <luto@kernel.org>
Subject: [PATCH v2 0/6] CPUID and FPU fixes
Date: Wed, 18 Jan 2017 11:15:36 -0800 [thread overview]
Message-ID: <cover.1484705016.git.luto@kernel.org> (raw)
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
next reply other threads:[~2017-01-18 19:16 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-18 19:15 Andy Lutomirski [this message]
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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