linux-kernel - Re: MTRR initialization

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: <20070920121013.GH18707@one.firstfloor.org>
Date:	Thu, 20 Sep 2007 14:10:13 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Avi Kivity <avi@...ranet.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Jesse Barnes <jesse.barnes@...el.com>,
	Howard Chu <hyc@...as.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: MTRR initialization

> Is there any reason not to set the MTRRs to define the entire memory as 
> write back, and use PAT exclusively for setting cacheability?

That risks breaking SMM or BIOS code.

-Andi
-
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/