From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: split efi systab in sysfs
Date: Thu, 26 Dec 2013 10:17:06 +0800
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To: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org, greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org
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CCing Simon and kexec list

On 12/26/13 at 10:12am, Dave Young wrote:
> On 12/25/13 at 05:55pm, H. Peter Anvin wrote:
> > On 12/25/2013 05:53 PM, Dave Young wrote:
> > > Hi, Matt and Peter
> > > 
> > > Currently /sys/firmware/efi/systab contains multi-lines for efi systab
> > > entries. As previous discussion with Greg, this is not a good in sysfs.
> > > I wonder if there's other users for this file except kexec-tools.
> > > 
> > > If kexec-tools is the only user, maybe I can split it as several files.
> > > In kexec-tools just use /sys/firmware/efi/"$entry_name" and if $entry_name
> > > does not exist then switch to old systab file. 
> > > 
> > 
> > Yes, the sysfs standard is "one entry per datum".  I have no idea about
> > who the user(s) might be, though.
> 
> Even the only known user kexec-tools, for new kernel + old kexec-tools we
> have no way to support, maybe this systab should be kept forever...