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
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