linux-kernel - Re: [PATCH 4/4] x86, gart: Make sure GART does not map physmem above 1TB

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: <20110419061259.GL2192@amd.com>
Date:	Tue, 19 Apr 2011 08:12:59 +0200
From:	"Roedel, Joerg" <Joerg.Roedel@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	"H. Peter Anvin" <hpa@...nel.org>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: [PATCH 4/4] x86, gart: Make sure GART does not map physmem
 above 1TB

On Mon, Apr 18, 2011 at 11:50:33AM -0400, Ingo Molnar wrote:
> 
> * Roedel, Joerg <Joerg.Roedel@....com> wrote:
> 
> > On Mon, Apr 18, 2011 at 10:54:17AM -0400, H. Peter Anvin wrote:
> > > On 04/18/2011 07:46 AM, H. Peter Anvin wrote:
> > > > On 04/18/2011 06:45 AM, Joerg Roedel wrote:
> > > >> The GART can only map physical memory below 1TB. Make sure
> > > >> the gart driver in the kernel does not try to map memory
> > > >> above 1TB.
> > > > 
> > > > Where does this limit come from?
> > > 
> > > Nevermind... despite the generic name of the file it looks to be
> > > specific to the K8 GART.
> > 
> > Yes, this file mostly contains the dma-ops implementation that uses the
> > K8 gart plus some k8-gart specific initialization functions.
> 
> Does the file want to be renamed to pci-amd_gart_64.c or so?

Hmm, that seems long. How about just amd64_gart.c?

	Joerg

-- 
AMD Operating System Research Center

Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632

--
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/