* split efi systab in sysfs
@ 2013-12-26 1:53 Dave Young
2013-12-26 1:55 ` H. Peter Anvin
0 siblings, 1 reply; 4+ messages in thread
From: Dave Young @ 2013-12-26 1:53 UTC (permalink / raw)
To: matt, hpa; +Cc: greg, linux-kernel, linux-efi
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 $entry_name
does not exist then switch to old systab file.
Thanks
Dave
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: split efi systab in sysfs
2013-12-26 1:53 split efi systab in sysfs Dave Young
@ 2013-12-26 1:55 ` H. Peter Anvin
2013-12-26 2:12 ` Dave Young
0 siblings, 1 reply; 4+ messages in thread
From: H. Peter Anvin @ 2013-12-26 1:55 UTC (permalink / raw)
To: Dave Young, matt; +Cc: greg, linux-kernel, linux-efi
On 12/25/2013 05:53 PM, Dave Young wrote:
> Hi, Matt and Peter
>
> Currently /sys/firmware/efi/systab contains multi-lines for efi systab
> entries. As previous discussion with Greg, this is not a good in sysfs.
> I wonder if there's other users for this file except kexec-tools.
>
> If kexec-tools is the only user, maybe I can split it as several files.
> In kexec-tools just use /sys/firmware/efi/"$entry_name" and if $entry_name
> does not exist then switch to old systab file.
>
Yes, the sysfs standard is "one entry per datum". I have no idea about
who the user(s) might be, though.
-hpa
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: split efi systab in sysfs
2013-12-26 1:55 ` H. Peter Anvin
@ 2013-12-26 2:12 ` Dave Young
2013-12-26 2:17 ` Dave Young
0 siblings, 1 reply; 4+ messages in thread
From: Dave Young @ 2013-12-26 2:12 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: matt, greg, linux-kernel, linux-efi
On 12/25/13 at 05:55pm, H. Peter Anvin wrote:
> On 12/25/2013 05:53 PM, Dave Young wrote:
> > Hi, Matt and Peter
> >
> > Currently /sys/firmware/efi/systab contains multi-lines for efi systab
> > entries. As previous discussion with Greg, this is not a good in sysfs.
> > I wonder if there's other users for this file except kexec-tools.
> >
> > If kexec-tools is the only user, maybe I can split it as several files.
> > In kexec-tools just use /sys/firmware/efi/"$entry_name" and if $entry_name
> > does not exist then switch to old systab file.
> >
>
> Yes, the sysfs standard is "one entry per datum". I have no idea about
> who the user(s) might be, though.
Even the only known user kexec-tools, for new kernel + old kexec-tools we
have no way to support, maybe this systab should be kept forever...
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: split efi systab in sysfs
2013-12-26 2:12 ` Dave Young
@ 2013-12-26 2:17 ` Dave Young
0 siblings, 0 replies; 4+ messages in thread
From: Dave Young @ 2013-12-26 2:17 UTC (permalink / raw)
To: H. Peter Anvin; +Cc: matt, greg, linux-kernel, linux-efi, kexec, horms
CCing Simon and kexec list
On 12/26/13 at 10:12am, Dave Young wrote:
> On 12/25/13 at 05:55pm, H. Peter Anvin wrote:
> > On 12/25/2013 05:53 PM, Dave Young wrote:
> > > Hi, Matt and Peter
> > >
> > > Currently /sys/firmware/efi/systab contains multi-lines for efi systab
> > > entries. As previous discussion with Greg, this is not a good in sysfs.
> > > I wonder if there's other users for this file except kexec-tools.
> > >
> > > If kexec-tools is the only user, maybe I can split it as several files.
> > > In kexec-tools just use /sys/firmware/efi/"$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...
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-12-26 2:17 UTC | newest]
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