[PATCH RFC 5/6] arm64: Add support for binary image

[Baoquan He]

On 04/21/15 at 10:12am, Pratyush Anand wrote:
> 
> 
> 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 at 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.

Well, this looks good. Try --page-offset and then fetch it in
/proc/kallsysms if not specificed by user. ARM64 should have this too.

> 
> May be for ARM64, we can read it like "value of symbol _text in
> /proc/kallsyms & 0xfffffffffff00000".
> 
> ~Pratyush
> 
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