How to implement kexec on e500 ?

[wilbur.chan]

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 ?



Cheers,

wilbur