Re: CVS commit: src/sys/arch

[Jean-Yves Migeon <jeanyves.migeon%free.fr@localhost>]

On 24.07.2010 12:30, Manuel Bouyer wrote:
>> How about making paddr_t always 64bit? That makes it much easier to deal
>> with in libkvm.
>
> The overhead would need to be evaluated first.
> Also, I'm not sure this would fix all the libkvm issues (the page table
> format is still different).

For the page table format, the PAE types and macros could be redefined
with a prefix, and then aliased to the ones used in kernel when "options
PAE" is defined.

kvatop/pa2off functions could have access to both macros/typedefs, by
just having pae_ prefixed in front (pae_pl*_pi, pae_pd_entry_t, and so
on). It becomes a matter of calling the proper code within kvm(3), by
checking if PAE was enabled within the kernel dump (through kvm_nlist,
for example).

-- 
Jean-Yves Migeon
jeanyves.migeon%free.fr@localhost