From: Nigel Cunningham <ncunningham@cyclades.com>
To: Li Shaohua <shaohua.li@intel.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
Zwane Mwaikambo <zwane@arm.linux.org.uk>, ak <ak@muc.de>,
Pavel Machek <pavel@ucw.cz>, akpm <akpm@osdl.org>
Subject: Re: [PATCH]MTRR suspend/resume cleanup
Date: Tue, 28 Jun 2005 16:30:28 +1000 [thread overview]
Message-ID: <1119940228.7513.18.camel@localhost> (raw)
In-Reply-To: <1119936124.3158.9.camel@linux-hp.sh.intel.com>
Hi.
On Tue, 2005-06-28 at 15:22, Shaohua Li wrote:
> Hi,
> There has been some discuss about solving the SMP MTRR suspend/resume
> breakage, but I didn't find a patch for it. This is an intent for it.
> The basic idea is moving mtrr initializing into cpu_identify for all APs
> (so it works for cpu hotplug). For BP, restore_processor_state is
> responsible for restoring MTRR.
I have a patch in Suspend2 that removes the sysdev drivers and
implements mtrr save & restore as part of the cpu state save/restore.
I'm not sure if that's what you were thinking of.
I'm not using hotplug CPU at the moment, so won't be trying your patch
at the moment sorry.
Regards,
Nigel
prev parent reply other threads:[~2005-06-28 6:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-28 5:22 [PATCH]MTRR suspend/resume cleanup Shaohua Li
2005-06-28 5:24 ` Andrew Morton
2005-06-28 6:24 ` Shaohua Li
2005-06-30 2:13 ` Shaohua Li
2005-06-30 2:08 ` Andrew Morton
2005-06-30 2:24 ` Shaohua Li
2005-06-30 8:26 ` Andi Kleen
2005-06-28 6:30 ` Nigel Cunningham [this message]
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