Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as wellas x86_32

[H. Peter Anvin]

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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