linux-kernel - Re: Put unused PCI devices in D3

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20081003194040.GC1497@ucw.cz>
Date:	Fri, 3 Oct 2008 21:40:40 +0200
From:	Pavel Machek <pavel@...e.cz>
To:	"Jeffrey W. Baker" <jwbaker@...il.com>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>, linux-kernel@...r.kernel.org
Subject: Re: Put unused PCI devices in D3

Hi!

> > > * If the device is a bridge or hub with no downstream device
> > 
> > Potential problems with hotplugging? But sure, this kind of thing is 
> > being implemented in USB and SCSI.
> > 
> > > * Whenever userspace requests D3 via sysfs
> > 
> > This functionality was explicitly removed a few years back.
> 
> I sure would like to have it back, if only just for experimentation.

Feel free to find it and reapply for your experiments. The file was in
sysfs was called power/state, just grep git logs for that.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/