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SubjectRe: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32
On 04/09/2010 09:04 AM, Bjorn Helgaas wrote:
>>
>> for 64 bit, you may check boot_params.screen_info.orig_video_isVGA to see if you need to reserve that VGA range.
>> not sure if every bootloader fill that...
>
> Why is this different for 64-bit vs 32-bit? Can you point me to any
> references where I can learn about this?
>

It's not. Any differences between 32 and 64 bits in this area are just
plain wrong.

-hpa


--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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