How to implement kexec on e500 ?

[Kumar Gala]

On Jun 29, 2009, at 8:47 AM, wilbur.chan wrote:

> kernel 2.6.21.7
>
> As we know , kexec stores  data  for new kernel image ,  in the form
> of   a page list.
>
> And kexec uses the physical address of the another  page for a
> "next-page" pointer.
>
> However, PowerPC e500  does not allow users to turn off the MMU, so we
> can not used physical address directly in our code.
>
>
> Someone suggested that changing  relocate_kernel.S to add a TLB 1-to-1
> mapping of DRAM .
>
> What does "mapping" mean ?
>
> Any suggestion to implement kexec on e500 ?

Wilbur, kexec has been implemented on e500.  There are some patches on  
the list for this and they just need to be respun and reviewed again.

- k