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SubjectRe: [PATCH -v2 1/2] x86: Reserve [0xa0000, 0x100000] in e820 map
On 04/13/2010 04:03 PM, Yinghai wrote:
> 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.
>

OK... why is that handled differently?

-hpa



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