From: Borislav Petkov <bp@alien8.de>
To: Havard Skinnemoen <hskinnemoen@google.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ewout van Bekkum <ewout@google.com>
Subject: Re: [PATCH 3/6] x86-mce: Clear CMCI enable on all claimed CMCI banks before reboot.
Date: Thu, 10 Jul 2014 20:30:01 +0200 [thread overview]
Message-ID: <20140710183001.GD5603@pd.tnic> (raw)
In-Reply-To: <CAFQmdRb-qENEhFrEeNzvBrMuBjusZcxvhanTuzL9VmKncv-1Tg@mail.gmail.com>
On Thu, Jul 10, 2014 at 10:56:05AM -0700, Havard Skinnemoen wrote:
> Even on kexec-enabled kernels, we might be doing a regular BIOS boot.
> Is there any way to detect that we're doing a kexec boot and only
> clearing the MSRs in that case?
What Tony said: if the processor resets, those MSRs are cleared, forget
BIOS.
I dunno though whether the processor gets reset during kexec though. It
needs code staring...
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2014-07-10 18:30 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-09 17:09 [PATCH 0/6] x86 mce fixes Havard Skinnemoen
2014-07-09 17:09 ` [PATCH 1/6] x86-mce: Modify CMCI poll interval to adjust for small check_interval values Havard Skinnemoen
2014-07-09 19:17 ` Borislav Petkov
2014-07-09 21:24 ` Havard Skinnemoen
2014-07-10 9:01 ` Chen, Gong
2014-07-10 17:16 ` Havard Skinnemoen
2014-07-11 2:12 ` Chen, Gong
2014-07-10 11:42 ` Borislav Petkov
2014-07-10 17:51 ` Havard Skinnemoen
2014-07-10 18:55 ` Tony Luck
2014-07-10 22:45 ` Havard Skinnemoen
2014-07-11 15:35 ` Borislav Petkov
2014-07-11 18:56 ` Havard Skinnemoen
2014-07-11 20:10 ` Borislav Petkov
2014-07-11 20:39 ` Havard Skinnemoen
2014-07-14 14:57 ` Borislav Petkov
2014-07-11 20:22 ` Borislav Petkov
2014-07-12 0:10 ` Havard Skinnemoen
2014-07-14 15:14 ` Borislav Petkov
2014-07-11 20:36 ` Borislav Petkov
2014-07-11 21:05 ` Havard Skinnemoen
2014-07-09 17:09 ` [PATCH 2/6] x86-mce: Modify CMCI storm exit to reenable instead of rediscover banks Havard Skinnemoen
2014-07-09 20:20 ` Luck, Tony
2014-07-09 21:34 ` Havard Skinnemoen
2014-07-10 15:51 ` Borislav Petkov
2014-07-10 18:32 ` Havard Skinnemoen
2014-07-09 17:09 ` [PATCH 3/6] x86-mce: Clear CMCI enable on all claimed CMCI banks before reboot Havard Skinnemoen
2014-07-09 20:36 ` Luck, Tony
2014-07-09 21:40 ` Havard Skinnemoen
2014-07-10 16:24 ` Borislav Petkov
2014-07-10 16:33 ` Tony Luck
2014-07-10 17:56 ` Havard Skinnemoen
2014-07-10 18:27 ` Tony Luck
2014-07-10 18:30 ` Borislav Petkov [this message]
2014-07-09 17:09 ` [PATCH 4/6] x86-mce: Add spinlocks to prevent duplicated MCP and CMCI reports Havard Skinnemoen
2014-07-09 20:35 ` Andi Kleen
2014-07-09 21:51 ` Havard Skinnemoen
2014-07-09 23:32 ` Luck, Tony
2014-07-10 8:16 ` Borislav Petkov
2014-07-09 20:47 ` Luck, Tony
2014-07-09 21:56 ` Havard Skinnemoen
2014-07-10 16:41 ` Borislav Petkov
2014-07-10 18:03 ` Havard Skinnemoen
2014-07-10 18:44 ` Borislav Petkov
2014-07-10 18:57 ` Tony Luck
2014-07-10 19:12 ` Borislav Petkov
2014-07-11 9:24 ` Borislav Petkov
2014-07-11 19:06 ` Tony Luck
2014-07-11 19:52 ` Borislav Petkov
2014-07-11 21:15 ` Havard Skinnemoen
2014-07-17 10:50 ` Borislav Petkov
2014-07-18 21:23 ` Tony Luck
2014-07-18 21:31 ` Borislav Petkov
2014-07-09 17:09 ` [PATCH 5/6] x86-mce: check if no_way_out applies before deciding not to clear MCE banks Havard Skinnemoen
2014-07-09 21:00 ` Luck, Tony
2014-07-09 23:00 ` Havard Skinnemoen
2014-07-09 23:27 ` Luck, Tony
2014-07-10 16:49 ` Borislav Petkov
2014-07-09 17:09 ` [PATCH 6/6] x86-mce: ensure the MCP timer is not already set in the mce_timer_fn Havard Skinnemoen
2014-07-09 21:04 ` Luck, Tony
2014-07-09 23:01 ` Havard Skinnemoen
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=20140710183001.GD5603@pd.tnic \
--to=bp@alien8.de \
--cc=ewout@google.com \
--cc=hskinnemoen@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=tony.luck@intel.com \
/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.