----- Original Message -----
> >
> > Now that PHYS_OFFSET is defined as "memstart_addr", we can get the
value
> > if we can access this symbol (on a live system).
>
> When PHYS_OFFSET/memstart_addr is bumped up from the actual base of physical
> memory, is the physical memory below it no longer used/accessible?
Yes, it is! That is what Ard has managed to do in his series of
KASLR-related patches.
How is it accessed via a kernel virtual address? Or is only accessible when
mapped into a vmalloc() or user-space address?
Dave