2014-06-02 11:23:27

by Matt Fleming

[permalink] [raw]
Subject: Re: [PATCH]x86 efi: do not export efi runtime map in case old map

On 30 May 2014 04:20, Dave Young <[email protected]> wrote:
>
> For ioremapped efi memory aka old_map the virt addresses are not persistant
> across kexec reboot. kexec-tools will read the runtime maps from sysfs then
> pass them to 2nd kernel and assuming kexec efi boot is ok. This will cause
> kexec boot failure.
>
> To address this issue do not export runtime maps in case efi old_map so
> userspace can use no efi boot instead.
>
> Signed-off-by: Dave Young <[email protected]>
> ---
> arch/x86/platform/efi/efi.c | 3 +++
> 1 file changed, 3 insertions(+)

Thanks Dave, applied with acks.