linux-kernel - Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned

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Message-ID: <4BEDD03B.30106@zytor.com>
Date:	Fri, 14 May 2010 15:35:39 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Mike Travis <travis@....com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Bjorn Helgaas <bjorn.helgaas@...com>,
	Mike Habeck <habeck@....com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	Jacob Pan <jacob.jun.pan@...el.com>, Tejun Heo <tj@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Yinghai <yinghai.lu@...cle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Myron Stowe <myron.stowe@...com>
Subject: Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already
 assigned

On 05/14/2010 03:34 PM, Mike Travis wrote:
> 
> It seems that BIOS changes are much more difficult.  The real solution
> to this problem is for Card Vendors to not request I/O Bars if they
> won't be using them.  But that's the hardest option of all to accomplish.
> 

That is a non-option.  Any device which may have to be a boot or console
device in a legacy system pretty much needs them.

	-hpa
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