From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Lm9m0-0007Q9-4J for qemu-devel@nongnu.org; Tue, 24 Mar 2009 12:46:44 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Lm9lv-0007Nw-Di for qemu-devel@nongnu.org; Tue, 24 Mar 2009 12:46:43 -0400 Received: from [199.232.76.173] (port=51080 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Lm9lv-0007Np-92 for qemu-devel@nongnu.org; Tue, 24 Mar 2009 12:46:39 -0400 Received: from mx20.gnu.org ([199.232.41.8]:54054) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1Lm9lu-0002ls-W9 for qemu-devel@nongnu.org; Tue, 24 Mar 2009 12:46:39 -0400 Received: from mail.codesourcery.com ([65.74.133.4]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1Lm9lt-0002ao-Cw for qemu-devel@nongnu.org; Tue, 24 Mar 2009 12:46:37 -0400 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH 01/25] Add support for multi-level phys map. Date: Tue, 24 Mar 2009 16:46:34 +0000 References: <1237909687-31711-1-git-send-email-gingold@adacore.com> <1237909687-31711-2-git-send-email-gingold@adacore.com> In-Reply-To: <1237909687-31711-2-git-send-email-gingold@adacore.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200903241646.34867.paul@codesourcery.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Tristan Gingold On Tuesday 24 March 2009, Tristan Gingold wrote: > As Alpha physical addresses are 44 bits, l1_phys_map can't be anymore 2 > levels. Use a more generic multi-level approach and explain why we don't > need to extend l1_map. Having two different code paths, one of which is going to be largely untested, seems like a bad idea. If done properly the multi-level code should be usable for everything, with little or no performance hit. Paul