Messages in this thread | | | Date | Fri, 09 Apr 2010 09:44:55 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: Reserve legacy VGA MMIO area for x86_64 as well as x86_32 |
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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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