linux-kernel - Re: i686 quirk for AMD Geode

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

Message-ID: <20091113212148.5cb829d4@lxorguk.ukuu.org.uk>
Date:	Fri, 13 Nov 2009 21:21:48 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
Cc:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>,
	Pavel Machek <pavel@....cz>, "H. Peter Anvin" <hpa@...or.com>,
	Matteo Croce <technoboy85@...il.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: i686 quirk for AMD Geode

> > Which usually means some form of write gathering is enabled or something
> > thinks the device is write combining on the PCI bus. What does the PCI
> > bus and the RCRR MTRR set look like ?
> 
> Well there is no /proc/mtrr.

Linux doesn't have an RCRR driver - so you need to dump the MSRs directly
(see the Geode GX manual MSR list) and read out the msrs.
--
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/