linux-kernel - Re: [PATCH -v2] pci: clear bridge resource size if BIOS assign bad one

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Message-ID: <4C0ED401.6060800@oracle.com>
Date:	Tue, 08 Jun 2010 16:36:33 -0700
From:	Yinghai Lu <yinghai.lu@...cle.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Yannick Roehlly <yannick.roehlly@...e.fr>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -v2] pci: clear bridge resource size if BIOS assign bad
 one

On 06/08/2010 03:48 PM, Bjorn Helgaas wrote:
> On Tuesday, June 08, 2010 03:43:50 pm Jesse Barnes wrote:

> 
> In this case, the aperture *size* from the BIOS is actually OK, but
> the beginning of the aperture overlaps system memory.  With Yinghai's
> patch, we reduce the size and move the start.  Windows was able to
> just move the start of the aperture and preserve the original
> 0x20000000 size (but I think it had to move something else out of
> the way).

are you sure? that looks more aggressive.

Yinghai
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