From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL Date: Mon, 2 Apr 2007 19:14:07 +0200 References: <20070401071024.23757.4113.sendpatchset@schroedinger.engr.sgi.com> <200704021744.39880.ak@suse.de> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200704021914.07541.ak@suse.de> Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Martin Bligh , linux-mm@kvack.org, KAMEZAWA Hiroyuki List-ID: > No no no. For the gazillions time: All of 1-1 mapped kernel memory on > x86_64 needs a 2 MB page table entry. The virtual memmap uses the same. > There are *no* additional TLBs used. But why do you reserve an own virtual area then if you claim to not use any additional mappings? -Andi -- 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