On Monday 20 April 2015 12:54 PM, Baoquan He wrote:
On 04/16/15 at 10:17pm, Pratyush Anand wrote:
> >This patch adds support to use binary image ie arch/arm64/boot/Image.
> >
> >Binary image does not have sufficient knowledge to extract page offset
> >information, which is needed by kexec tool. Use a new command parameter
> >--page-offset, so that user can provide page offset information for
> >liner mapping.
> >
> >Signed-off-by: Pratyush Anand<panand(a)redhat.com>
> >---
Seems there's a function get_kernel_page_offset used to get page_offset
automatically in arm. arm64 should have it either.
ARM still takes user option for --page-offset in user_page_offset
variable and then cross check that value with one found in /proc/kallsyms.
May be for ARM64, we can read it like "value of symbol _text in
/proc/kallsyms & 0xfffffffffff00000".
~Pratyush