[Patch] kexec: fix the missing i386 part in commit 1100580b05e

[Vivek Goyal]

On Sun, Apr 17, 2011 at 04:29:05PM +0800, Amerigo Wang wrote:
> Vivek pointed out that I missed the i386 part in this commit,
> 
> 	commit 1100580b05e3fdfe648d9be8617d962b11f4b88b
> 	Author: Amerigo Wang <amwang at redhat.com>
> 	Date:   Thu Mar 3 00:10:43 2011 +0800
> 
> 	    get the backup area dynamically
> 
> Yes. The customer who reported that bug definitely only
> tested it on x86_64. Now make it complete.

Hi Amerigo,

Have you verified the contents of backup area? I want to make sure that
everything is working and in second kernel when we read up vmcore, we
do read contents properly.

Thanks
Vivek

> 
> Signed-off-by: Amerigo Wang <amwang at redhat.com>
> Cc: Vivek Goyal <vgoyal at redhat.com>
> Cc: Simon Horman <horms at verge.net.au>
> 
> ---
> diff --git a/kexec/arch/i386/kexec-x86.c b/kexec/arch/i386/kexec-x86.c
> index 5c701aa..014ecd5 100644
> --- a/kexec/arch/i386/kexec-x86.c
> +++ b/kexec/arch/i386/kexec-x86.c
> @@ -184,6 +184,10 @@ void arch_update_purgatory(struct kexec_info *info)
>  		&arch_options.console_vga, sizeof(arch_options.console_vga));
>  	elf_rel_set_symbol(&info->rhdr, "console_serial",
>  		&arch_options.console_serial, sizeof(arch_options.console_serial));
> +	elf_rel_set_symbol(&info->rhdr, "backup_src_start",
> +		&info->backup_src_start, sizeof(info->backup_src_start));
> +	elf_rel_set_symbol(&info->rhdr, "backup_src_size",
> +		&info->backup_src_size, sizeof(info->backup_src_size));
>  	if (info->kexec_flags & KEXEC_ON_CRASH) {
>  		panic_kernel = 1;
>  		elf_rel_set_symbol(&info->rhdr, "backup_start",