On Apr 15, 2008, at 7:03 PM, Paul Mackerras wrote:
Kumar Gala writes:
What happens if CONFIG_KERNEL_START != CONFIG_PAGE_OFFSET and the
kernel is loaded at some address != CONFIG_PHYSICAL_START?
Assuming its not a CONFIG_RELOCATABLE kernel than bad things. Is
there some concern you have here?
No, I meant if it is a CONFIG_RELOCATABLE kernel.
if CONFIG_RELOCATABLE is set, than PHYSICAL_START has no meaning
(beyond being what we set paddr to for the PHDR).
Its ok if KERNEL_START != PAGE_OFFSET. The key is that the physical
address the kernel is loaded at meet the alignment requirements.
(currently 256M, will relax in the future once we get a form of this
in the tree).
BTW, the various bits of discussion we've about this stuff would make
good material for the patch description.
Agreed was thinking the same thing. Suggestions on useful bits to add
are welcome.
- k
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