RE: [Linux-ia64] [patch 2.5.39] allow kernel to be virtually mapp ed from any physi cal address

From: Luck, Tony <tony.luck_at_intel.com>
Date: 2002-10-17 03:56:17
Yesterday I wrote:
> This patch provides just the code needed to virtually map the
> kernel to a fixed virtual address from whatever physical address
> it happened to be loaded at (it is assumed that the bootloader
> handled the issue of finding a suitably aligned piece of memory).

Elilo already knows how to find memory, as long as you either use
the "relocatable" keyword in elilo.conf, or the "-r" command-line
option to let it know that it is OK to relocate.

Using this elilo option means that the changes I provided for
vmlinux.ld.S can be very slightly simplified, it isn't necessary
to define BASE_KVADDR as "KERNEL_START + KERNEL_TR_PAGE_SIZE", you
can just use:

#define BASE_KVADDR	KERNEL_START

-Tony
Received on Wed Oct 16 13:14:54 2002

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