From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>, Jacob Shin <jacob.shin@amd.com>,
Yinghai Lu <yinghai@kernel.org>,
"H. Peter Anvin" <hpa@linux.intel.com>,
"Yu, Fenghua" <fenghua.yu@intel.com>,
"mingo@kernel.org" <mingo@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-tip-commits@vger.kernel.org"
<linux-tip-commits@vger.kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Subject: Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU
Date: Wed, 19 Dec 2012 16:02:25 -0800 [thread overview]
Message-ID: <50D25591.4030302@zytor.com> (raw)
In-Reply-To: <20121219234012.GO24895@liondog.tnic>
On 12/19/2012 03:40 PM, Borislav Petkov wrote:
>
> This is done on the BSP, right? So we can measure it how long it takes
> by taking TSC values of start and end.
>
Yes, and we can count the number of #PF traps cheaply enough. It would
be interesting to put a counter on the number of #PFs and the number of
resets and read them out on a large-system boot.
>
> Sounds doable but we should take a hard look at the patches so that we
> don't miss anything.
>
> Also, I don't know how stuff like that would be approached for a wider
> testing - I mean, it is a serious change in x86 boot code and there will
> be issues.
>
The goal should be to have this into -tip and -next by the middle of
January in order to make the 3.9 merge window, I think.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2012-12-20 0:03 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-30 1:47 [PATCH v2 00/11] x86/microcode: Early load microcode Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 01/10] Documentation/x86: " Fenghua Yu
2012-11-30 19:46 ` H. Peter Anvin
2012-11-30 20:40 ` Yu, Fenghua
2012-11-30 1:47 ` [PATCH v2 02/10] x86/microcode_intel.h: Define functions and macros for early loading ucode Fenghua Yu
2012-12-01 0:21 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 03/10] x86/microcode_core_early.c: Define interfaces " Fenghua Yu
2012-12-01 0:23 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 04/10] x86/microcode_intel_lib.c: Early update ucode on Intel's CPU Fenghua Yu
2012-12-01 0:24 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 05/10] x86/microcode_intel_early.c: " Fenghua Yu
2012-12-01 0:25 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-12-01 0:55 ` Yinghai Lu
2012-12-04 0:18 ` Yu, Fenghua
2012-12-11 2:39 ` Yinghai Lu
2012-12-11 3:41 ` H. Peter Anvin
2012-12-11 3:55 ` Yinghai Lu
2012-12-11 6:34 ` H. Peter Anvin
2012-12-11 7:07 ` Yinghai Lu
2012-12-11 14:57 ` Borislav Petkov
2012-12-11 16:46 ` Yinghai Lu
2012-12-11 16:48 ` H. Peter Anvin
2012-12-11 17:00 ` Yinghai Lu
2012-12-11 17:06 ` Borislav Petkov
2012-12-11 17:15 ` Yinghai Lu
2012-12-11 17:26 ` Yu, Fenghua
2012-12-11 17:38 ` H. Peter Anvin
2012-12-11 23:53 ` Yinghai Lu
2012-12-11 23:57 ` H. Peter Anvin
2012-12-12 0:27 ` Yinghai Lu
2012-12-12 0:37 ` H. Peter Anvin
2012-12-12 7:14 ` Yinghai Lu
2012-12-12 10:26 ` Yinghai Lu
2012-12-13 1:06 ` Yinghai Lu
2012-12-12 6:57 ` H. Peter Anvin
2012-12-12 13:38 ` Borislav Petkov
2012-12-12 17:43 ` H. Peter Anvin
2012-12-13 5:12 ` H. Peter Anvin
2012-12-13 5:26 ` H. Peter Anvin
2012-12-13 7:01 ` Yinghai Lu
2012-12-13 15:01 ` H. Peter Anvin
2012-12-13 19:13 ` Borislav Petkov
2012-12-13 21:36 ` H. Peter Anvin
2012-12-14 9:11 ` Yinghai Lu
2012-12-14 18:16 ` H. Peter Anvin
2012-12-14 19:46 ` H. Peter Anvin
2012-12-14 20:04 ` Yinghai Lu
2012-12-14 20:08 ` Yinghai Lu
2012-12-14 20:14 ` Yinghai Lu
2012-12-14 20:44 ` H. Peter Anvin
2012-12-15 7:57 ` Yinghai Lu
2012-12-15 19:30 ` H. Peter Anvin
2012-12-15 20:55 ` Yinghai Lu
2012-12-15 21:31 ` H. Peter Anvin
2012-12-15 21:40 ` H. Peter Anvin
2012-12-15 22:13 ` Yinghai Lu
2012-12-15 22:17 ` H. Peter Anvin
2012-12-15 23:15 ` Yinghai Lu
2012-12-15 23:17 ` H. Peter Anvin
2012-12-19 20:37 ` Borislav Petkov
2012-12-19 21:07 ` Jacob Shin
2012-12-19 21:48 ` H. Peter Anvin
2012-12-19 22:05 ` Jacob Shin
2012-12-19 22:25 ` H. Peter Anvin
2012-12-19 22:47 ` Yinghai Lu
2012-12-19 22:59 ` H. Peter Anvin
2012-12-19 22:51 ` Borislav Petkov
2012-12-19 22:59 ` Jacob Shin
2012-12-19 23:03 ` Borislav Petkov
2012-12-19 23:21 ` Jacob Shin
2012-12-19 23:56 ` H. Peter Anvin
2012-12-19 23:22 ` H. Peter Anvin
2012-12-19 23:40 ` Borislav Petkov
2012-12-20 0:02 ` H. Peter Anvin [this message]
2012-12-20 0:10 ` Borislav Petkov
2012-12-20 0:15 ` H. Peter Anvin
2012-12-19 23:40 ` Yinghai Lu
2012-12-19 23:43 ` H. Peter Anvin
2012-12-19 23:48 ` Yinghai Lu
2012-12-19 23:40 ` Jacob Shin
2012-12-19 23:45 ` Yinghai Lu
2012-12-19 23:50 ` H. Peter Anvin
2012-12-19 23:55 ` Borislav Petkov
2012-12-19 23:57 ` H. Peter Anvin
2012-12-20 0:07 ` Jacob Shin
2012-12-20 0:24 ` H. Peter Anvin
2012-12-20 0:29 ` Jacob Shin
2012-12-20 0:41 ` H. Peter Anvin
2012-12-20 2:37 ` H. Peter Anvin
2012-12-20 4:16 ` Jacob Shin
2012-12-20 4:21 ` H. Peter Anvin
2012-12-19 22:55 ` Jacob Shin
2012-12-19 23:00 ` Borislav Petkov
2012-12-19 23:17 ` H. Peter Anvin
2012-12-19 23:30 ` Borislav Petkov
2012-12-19 23:37 ` H. Peter Anvin
2012-12-19 23:23 ` H. Peter Anvin
2012-12-16 2:09 ` Yinghai Lu
2012-12-16 5:17 ` Yinghai Lu
2012-12-16 8:50 ` Yinghai Lu
2012-12-17 22:47 ` Yinghai Lu
2012-12-17 23:11 ` H. Peter Anvin
2012-12-17 23:26 ` Yinghai Lu
2012-12-18 1:11 ` Yinghai Lu
2012-12-18 1:51 ` Yinghai Lu
2012-12-18 2:42 ` Yinghai Lu
2012-12-14 20:10 ` H. Peter Anvin
2012-12-14 20:17 ` Yinghai Lu
2012-12-14 20:52 ` H. Peter Anvin
2012-12-14 21:07 ` Yinghai Lu
2012-12-11 18:02 ` H. Peter Anvin
2012-12-11 18:20 ` H. Peter Anvin
2012-12-11 18:42 ` Yinghai Lu
2012-12-11 18:46 ` H. Peter Anvin
2012-12-11 19:18 ` Yinghai Lu
2012-12-11 19:33 ` H. Peter Anvin
2012-11-30 1:47 ` [PATCH v2 06/10] x86/head_32.S: Early update ucode in 32-bit Fenghua Yu
2012-12-01 0:26 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 07/10] x86/head64.c: Early update ucode in 64-bit Fenghua Yu
2012-12-01 0:27 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 08/10] x86/smpboot.c: Early update ucode on AP Fenghua Yu
2012-12-01 0:28 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 09/10] x86/mm/init.c: Copy ucode from initrd image to memory Fenghua Yu
2012-12-01 0:29 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
2012-11-30 1:47 ` [PATCH v2 10/10] x86/Kconfig: Configurations to enable/disable the feature Fenghua Yu
2012-12-01 0:30 ` [tip:x86/microcode] x86/Kconfig: Configurations to enable/ disable " tip-bot for Fenghua Yu
-- strict thread matches above, loose matches on Subject: below --
2012-12-21 7:44 [PATCH v5 08/12] x86/microcode_intel_early.c: Early update ucode on Intel's CPU Fenghua Yu
2013-01-31 22:33 ` [tip:x86/microcode] " tip-bot for Fenghua Yu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50D25591.4030302@zytor.com \
--to=hpa@zytor.com \
--cc=Stefano.Stabellini@eu.citrix.com \
--cc=bp@alien8.de \
--cc=fenghua.yu@intel.com \
--cc=hpa@linux.intel.com \
--cc=jacob.shin@amd.com \
--cc=konrad.wilk@oracle.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=tglx@linutronix.de \
--cc=yinghai@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.