From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 13 Feb 2008 08:31:18 -0600 From: Jack Steiner Subject: Re: [patch 0/6] MMU Notifiers V6 Message-ID: <20080213143114.GA26715@sgi.com> References: <20080208220616.089936205@sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080208220616.089936205@sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: akpm@linux-foundation.org, Andrea Arcangeli , Robin Holt , Avi Kivity , Izik Eidus , kvm-devel@lists.sourceforge.net, Peter Zijlstra , linux-kernel@vger.kernel.org, linux-mm@kvack.org, daniel.blueman@quadrics.com List-ID: > GRU > - Simple additional hardware TLB (possibly covering multiple instances of > Linux) > - Needs TLB shootdown when the VM unmaps pages. > - Determines page address via follow_page (from interrupt context) but can > fall back to get_user_pages(). > - No page reference possible since no page status is kept.. I applied the latest mmuops patch to a 2.6.24 kernel & updated the GRU driver to use it. As far as I can tell, everything works ok. Although more testing is needed, all current tests of driver functionality are working on both a system simulator and a hardware simulator. The driver itself is still a few weeks from being ready to post but I can send code fragments of the portions related to mmuops or external TLB management if anyone is interested. --- jack -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org