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SubjectRe: [PATCH -v2 1/2] x86: Reserve [0xa0000, 0x100000] in e820 map
On 04/13/2010 02:18 PM, H. Peter Anvin wrote:
> On 04/13/2010 02:11 PM, Yinghai wrote:
>>> I guess the real question (which I haven't looked at myself) is if the
>>> E820_RESERVED -> BUSY will cause an explicitly assigned BAR from being
>>> moved. That's bad, not so much for this particular range, but from BARs
>>> which may be assigned by SMM. Hacking that up in a simulator
>>> (Qemu/Bochs) and testing it is probably on the to do list...
>> no, if some device BAR fall in that range, it should still use that range, and will not be relocated.
>> will update the change log.
> Good, that's what we want.

the driver for that device later can not use pci_request_region(). because that region is BUSY already.


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