From: Andy Lutomirski <luto@kernel.org>
To: 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: [RFC PATCH 0/6] CPUID and FPU fixes
Date: Mon, 5 Dec 2016 17:01:09 -0800 [thread overview]
Message-ID: <cover.1480985979.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.
Thoughts?
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 | 35 ++++++++++++++++++++++++-----------
arch/x86/kernel/fpu/init.c | 30 +++++++++++++++++-------------
arch/x86/kernel/fpu/xstate.c | 7 ++++++-
4 files changed, 48 insertions(+), 26 deletions(-)
--
2.9.3
next reply other threads:[~2016-12-06 1:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-06 1:01 Andy Lutomirski [this message]
2016-12-06 1:01 ` [RFC PATCH 1/6] x86/CPU: Add X86_FEATURE_CPUID Andy Lutomirski
2016-12-06 8:08 ` Borislav Petkov
2016-12-06 1:01 ` [RFC PATCH 2/6] x86/cpu: Factor out application of forced cpu caps Andy Lutomirski
2016-12-06 8:32 ` Borislav Petkov
2016-12-06 1:01 ` [RFC PATCH 3/6] x86/cpu: Re-apply forced caps every time cpu caps are re-read Andy Lutomirski
2016-12-06 8:57 ` Borislav Petkov
2016-12-06 1:01 ` [RFC PATCH 4/6] x86/fpu: Fix "x86/fpu: Legacy x87 FPU detected" message Andy Lutomirski
2016-12-06 9:24 ` Borislav Petkov
2016-12-06 17:59 ` Andy Lutomirski
2016-12-06 18:04 ` Borislav Petkov
2016-12-06 1:01 ` [RFC PATCH 5/6] x86/fpu: Fix CPUID-less FPU detection Andy Lutomirski
2016-12-06 9:40 ` Borislav Petkov
2016-12-06 17:52 ` Andy Lutomirski
2016-12-07 9:42 ` Borislav Petkov
2016-12-06 1:01 ` [RFC PATCH 6/6] x86/fpu: Fix the "Giving up, no FPU found" test Andy Lutomirski
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