Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753627AbbGAJgP (ORCPT ); Wed, 1 Jul 2015 05:36:15 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:49978 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753127AbbGAJf6 (ORCPT ); Wed, 1 Jul 2015 05:35:58 -0400 Date: Wed, 1 Jul 2015 11:35:55 +0200 From: Pavel Machek To: Richard Yao Cc: Kernel development list Subject: Re: Is there anyway to do direct mapped cache on Intel hardware? Message-ID: <20150701093554.GA24985@amd> References: <555A2A62.80309@gentoo.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <555A2A62.80309@gentoo.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 885 Lines: 21 On Mon 2015-05-18 14:07:30, Richard Yao wrote: > Is there anyway to do direct mapped cache on Intel hardware? > > Direct mapped cache should allow me to implement software ECC via the > low memory / high memory split. It would be slow, but I would prefer to > have a slow laptop than one that is vulnerable to bit flips. One of the bit flip papers actually presented the way to detect RAM attacks using performance coutners.... But yes, software ECC would be cooler hack ;-). Pavel -- (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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/