Message-ID: <4BBF70BC.3080809@zytor.com>
Date: Fri, 09 Apr 2010 11:23:56 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Yinghai <yinghai.lu@oracle.com>,
       Guenter Roeck <guenter.roeck@ericsson.com>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
       Bjorn Helgaas <bjorn.helgaas@hp.com>,
       Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
       linux-pci@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org,
       Andy Isaacson <adi@hexapodia.org>, Thomas Renninger <trenn@suse.de>
Subject: Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well
 as x86_32
References: <20100407210628.28364.96982.stgit@bob.kio> <201004071705.07176.bjorn.helgaas@hp.com> <4BBD13C3.2060404@oracle.com> <201004091004.39857.bjorn.helgaas@hp.com> <4BBF5987.3010100@zytor.com> <4BBF626A.3060800@oracle.com>
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[Adding Guenter Roeck as he was commenting on something writing to the
VGA area...]

On 04/09/2010 10:22 AM, Yinghai wrote:
> 
> then please check this one
> 
> update e820 at first, and later put them resource tree, but give pci BAR chance to claim
> the range, before assign unassigned resources.
> 
> in case some system doesn't have VGA, and use [0xa0000, ..] for mmio of some other pci devices.
> 

Do we have any evidence of any such system?

Either which way, the patch looks saner...

	-hpa
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