From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Patrick Mochel <mochel@osdl.org>
Cc: Pavel Machek <pavel@ucw.cz>,
Richard Gooch <rgooch@ras.ucalgary.ca>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Nigel Cunningham <ncunningham@clear.net.nz>
Subject: Re: PATCH: MTRR save and restore.
Date: 15 Apr 2003 21:28:41 +0100 [thread overview]
Message-ID: <1050438520.28591.4.camel@dhcp22.swansea.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.44.0304151313260.912-100000@cherise>
On Maw, 2003-04-15 at 21:18, Patrick Mochel wrote:
> MTRRs are one interface to an x86 CPU. CPUs are already represented in the
> device tree. The proper thing to do would be to have the CPU suspend/
> resume methods save and restore the MTRRs. It still requires an #ifdef in
> the CPU code, but with a little work, could be massaged down a ways.
Also it has to be done kernel side for SMP because having mismatched
MTRRs between processors is unsafe, yet lots of BIOSen get it wrong.
next prev parent reply other threads:[~2003-04-15 21:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1049530866.2241.23.camel@laptop-linux.cunninghams>
[not found] ` <200304062220.h36MKC35017233@vindaloo.ras.ucalgary.ca>
[not found] ` <1049680104.12790.46.camel@laptop-linux.cunninghams>
[not found] ` <20030407130507.GA16919@atrey.karlin.mff.cuni.cz>
[not found] ` <200304071646.h37GkBd6005985@vindaloo.ras.ucalgary.ca>
2003-04-07 20:13 ` Pavel Machek
2003-04-15 20:18 ` Patrick Mochel
2003-04-15 20:28 ` Alan Cox [this message]
2003-04-16 11:52 ` Pavel Machek
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