[PATCH] Always use 64 bit addresses for the firmware memory map
H. Peter Anvin
hpa at kernel.org
Wed Nov 12 18:35:49 EST 2008
Bernhard Walle wrote:
> * H. Peter Anvin [2008-11-12 11:59]:
>> I want to make sure, though, that we don't just end up pushing the
>> truncation further down in the code.
> Well, I think that interface should export the BIOS memmap as provided.
> Since E820 does provide 64 bit addresses, that should get exported.
> It should even possible to kexec a PAE kernel from a non PAE kernel ...
> I didn't test, but it could work. But only if the E820 map is correctly
> written in the zero page, which is only the case if we get it correctly.
That's fine, but we do have to check that we don't truncate elsewhere.
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