On 04/18/2013 12:55 PM, Matt Fleming wrote:
> On 04/18/2013 05:44 PM, Josh Triplett wrote:
>>>> The machine I developed the BGRT changes on kept the image below the 4G
>>>> mark, inside one of the memory regions reclaimable via
>>>> ExitBootServices().
>>>
>>> Well, highmem is >= ~896M. Do you have a machine with BGRT over the
>>> highmem mark?
>>
>> I don't have the machine in question anymore, and I don't remember.
>
> Sorry, I should have been more clear - having a BGRT image in highmem
> has never worked for the reasons I outlined in my previous mail. What I
> was really asking was: is it OK that we now explicitly don't support
> that case? I'm working on the assumption that it's pointless writing
> support for the BGRT in highmem because no such i386 machines exist. If
> the BGRT code works for your i386 right now, the address isn't in highmem.
>
> If there are machines out there that would require us to write support,
> it's probably worth doing now instead of punting. But it sounds like
> there aren't any.
>
I suspect if there aren't any yet there WILL be.
-hpa
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