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Date: Tue, 13 Apr 2010 16:03:45 -0700
From: Yinghai <yinghai.lu@oracle.com>
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To: "H. Peter Anvin" <hpa@zytor.com>
CC: Bjorn Helgaas <bjorn.helgaas@hp.com>, Thomas Gleixner <tglx@linutronix.de>,
       Ingo Molnar <mingo@redhat.com>, Andy Isaacson <adi@hexapodia.org>,
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       Linus Torvalds <torvalds@linux-foundation.org>,
       "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
       "x86@kernel.org" <x86@kernel.org>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
       Thomas Renninger <trenn@suse.de>
Subject: Re: [PATCH -v2 1/2] x86: Reserve [0xa0000, 0x100000] in e820 map
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On 04/13/2010 04:02 PM, H. Peter Anvin wrote:
>>
>> Are you sure? what is BAR range? greater than 1M ?
>>
>> e820_reserve_resources() will make that range to be reserved and BUSY in resource tree.
>> and if driver for that device want to call pci_request_region, it will get failure...
>>
> 
> Yes, > 1 MB in that case, I'm fairly sure.

that is ok. actually that is handled by e820_reserve_resource_late(), and it will not put BUSY on the entry at all.

YH