On 12/13/2012 02:02 PM, Yinghai Lu wrote:
> + * If we come here from a bootloader, kernel(text+data+bss+brk),
> + * ramdisk, zero_page, command line could be above 4G.
> + * We depend on an identity mapped page table being provided
> + * that maps our entire kernel(text+data+bss+brk), and hopefully
> + * all of memory.
We should make it explicit what we depend on. We certainly *can* depend
only on text+data+bss+brk ... with the dynamic page table approach we
can do that, and that would be most conservative; if we depend on other
things we should make that explicit, not just here but in boot.txt.
-hpa
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