From: Borislav Petkov <bp@alien8.de>
To: Andy Lutomirski <luto@kernel.org>
Cc: x86@kernel.org, One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Brian Gerst <brgerst@gmail.com>,
Matthew Whitehead <tedheadster@gmail.com>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Subject: Re: [PATCH 3/4] x86/microcode/intel: Replace sync_core() with cpuid_eax(1)
Date: Thu, 1 Dec 2016 10:11:21 +0100 [thread overview]
Message-ID: <20161201091121.igdbxppevrmjiwbz@pd.tnic> (raw)
In-Reply-To: <aa2ff833caa71ae65cda38573d7f45d5454db3bb.1480536936.git.luto@kernel.org>
On Wed, Nov 30, 2016 at 12:34:54PM -0800, Andy Lutomirski wrote:
> The Intel microcode driver is using sync_core() to mean "do CPUID
> with EAX=1". I want to rework sync_core(), but first the Intel
> microcode driver needs to stop depending on its current behavior.
>
> Reported-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
> Cc: Borislav Petkov <bp@alien8.de>
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
> arch/x86/kernel/cpu/microcode/intel.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Acked-by: Borislav Petkov <bp@suse.de>
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2016-12-01 9:11 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 20:34 [PATCH 0/4] CPUID-less CPU fixes and improvements Andy Lutomirski
2016-11-30 20:34 ` [PATCH 1/4] x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels Andy Lutomirski
2016-11-30 20:34 ` [PATCH 2/4] Revert "x86/boot: Fail the boot if !M486 and CPUID is missing" Andy Lutomirski
2016-12-01 5:53 ` Peter Zijlstra
2016-12-01 9:02 ` Borislav Petkov
2016-12-01 10:07 ` Thomas Gleixner
2016-12-01 11:15 ` [PATCH] x86/CPU: Add X86_FEATURE_CPUID Borislav Petkov
2016-12-01 17:00 ` Andy Lutomirski
2016-12-02 0:33 ` [PATCH 2/4] Revert "x86/boot: Fail the boot if !M486 and CPUID is missing" Andy Lutomirski
2016-12-01 17:00 ` Andy Lutomirski
2016-11-30 20:34 ` [PATCH 3/4] x86/microcode/intel: Replace sync_core() with cpuid_eax(1) Andy Lutomirski
2016-12-01 9:11 ` Borislav Petkov [this message]
2016-11-30 20:34 ` [PATCH 4/4] x86/asm: Change sync_core() to use MOV to CR2 to serialize Andy Lutomirski
2016-12-01 9:22 ` Borislav Petkov
2016-12-01 17:08 ` Andy Lutomirski
2016-12-01 17:46 ` Andrew Cooper
2016-12-02 7:34 ` Ingo Molnar
2016-12-02 0:34 ` [PATCH v2 0/6] CPUID-less CPU/sync_core fixes and improvements Andy Lutomirski
2016-12-02 0:34 ` [PATCH v2 1/6] x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels Andy Lutomirski
2016-12-02 0:34 ` [PATCH v2 2/6] Revert "x86/boot: Fail the boot if !M486 and CPUID is missing" Andy Lutomirski
2016-12-02 0:34 ` [PATCH v2 3/6] x86/microcode/intel: Replace sync_core() with cpuid_eax(1) Andy Lutomirski
2016-12-02 0:35 ` [PATCH v2 4/6] x86/paravirt: Make sync_core() be a paravirt op Andy Lutomirski
2016-12-02 0:35 ` [PATCH v2 5/6] x86/xen: Add a Xen-specific sync_core() implementation Andy Lutomirski
2016-12-02 11:44 ` Andrew Cooper
2016-12-02 17:07 ` Andy Lutomirski
2016-12-02 17:16 ` Andrew Cooper
2016-12-02 17:23 ` Andy Lutomirski
2016-12-02 17:26 ` Andrew Cooper
2016-12-02 18:50 ` Boris Ostrovsky
2016-12-02 19:34 ` Andy Lutomirski
2016-12-02 20:09 ` Boris Ostrovsky
2016-12-02 17:32 ` Linus Torvalds
2016-12-02 17:38 ` Andy Lutomirski
2016-12-02 17:53 ` Linus Torvalds
2016-12-02 18:03 ` Borislav Petkov
2016-12-02 18:27 ` Linus Torvalds
2016-12-02 18:50 ` Borislav Petkov
2016-12-02 19:03 ` Linus Torvalds
2016-12-02 19:20 ` Borislav Petkov
2016-12-02 19:24 ` Linus Torvalds
2016-12-02 19:28 ` Borislav Petkov
2016-12-03 15:02 ` [PATCH] x86/alternatives: Do not use sync_core() to serialize I$ Borislav Petkov
2016-12-03 17:05 ` Andy Lutomirski
2016-12-20 7:58 ` [tip:x86/urgent] " tip-bot for Borislav Petkov
2016-12-20 9:35 ` tip-bot for Borislav Petkov
2016-12-02 19:30 ` [PATCH v2 5/6] x86/xen: Add a Xen-specific sync_core() implementation Andy Lutomirski
2016-12-02 19:35 ` Linus Torvalds
2016-12-02 20:41 ` Andy Lutomirski
2016-12-02 21:10 ` Linus Torvalds
2016-12-02 22:55 ` Andy Lutomirski
2016-12-02 23:09 ` Linus Torvalds
2016-12-02 19:23 ` Andy Lutomirski
2016-12-02 19:30 ` Borislav Petkov
2016-12-03 12:44 ` Borislav Petkov
2016-12-02 0:35 ` [PATCH v2 6/6] x86/asm: Change sync_core() to use MOV to CR2 to serialize Andy Lutomirski
2016-12-02 0:36 ` [PATCH 0/4] CPUID-less CPU fixes and improvements Andy Lutomirski
2016-12-02 10:17 ` Ingo Molnar
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