From: Jesse Barnes <jesse.barnes@intel.com>
To: Howard Chu <hyc@symas.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: MTRR initialization
Date: Wed, 19 Sep 2007 14:52:57 -0700 [thread overview]
Message-ID: <200709191452.57505.jesse.barnes@intel.com> (raw)
In-Reply-To: <46EAB7DA.10507@symas.com>
On Friday, September 14, 2007 9:33 am Howard Chu wrote:
> So the question is - was there an easier/correct way to do this?
>
> It might have been nice if the MTRR ioctls allowed the register
> number to be specified on the Set commands, though I'm not sure that
> would have helped in this case.
To do this in a nicer way (and be less vulnerable to similar BIOS
funkiness) the kernel really needs full PAT support. That should allow
WC over WB and WC over UC mappings to occur, at least if I'm
remembering the docs right...
Jesse
next prev parent reply other threads:[~2007-09-19 21:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-14 16:33 MTRR initialization Howard Chu
2007-09-14 17:12 ` Yinghai Lu
2007-09-16 16:08 ` Howard Chu
2007-09-16 17:53 ` Yinghai Lu
2007-09-16 18:40 ` Eric W. Biederman
2007-09-18 17:53 ` Howard Chu
2007-09-18 18:18 ` Eric W. Biederman
2007-09-19 21:52 ` Jesse Barnes [this message]
2007-09-20 6:50 ` Andi Kleen
2007-09-20 12:05 ` Avi Kivity
2007-09-20 12:10 ` Andi Kleen
2007-09-20 12:46 ` Avi Kivity
2007-09-20 15:03 ` Jesse Barnes
2007-09-20 17:08 ` Jesse Barnes
2007-09-22 0:27 ` Siddha, Suresh B
2007-09-22 0:46 ` Howard Chu
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