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SubjectRe: [tip:x86/setup] x86, setup: "glove box" BIOS calls -- infrastructure
H. Peter Anvin wrote:
> Ingo Molnar wrote:
>
>> ... looks like an x86 descriptor table. Does the pattern below make
>> any sense to anyone? I've attached the relevant bits of one of the
>> reports below.
>>
>>
>
> It's weird... it's clearly not random, but the pattern is shifting all
> over the place. Almost makes me want to guess some kind of bitmask (the
> 0xaaaaaa00 bit and the stretches of 00 and ff kind of hint that way) but
> even then it doesn't really seem to make a whole lot of sense. Perhaps
> it's a data segment of some code which is barfing on memory.
>
> 960 bytes at 0xc000 (48K)... almost makes one wonder if someone confused
> address 0xc000 with segment 0xc000 (the VGA BIOS)...
>

(I wonder if its a bunch of super-secret HDMI crypto keys ;)

J


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