From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Otte Subject: Re: kvm_mmu doubts Date: Mon, 30 Jun 2008 16:13:36 +0200 Message-ID: <4868EA10.6000607@de.ibm.com> References: <2452.10.9.1.37.1214831194.squirrel@www.cse.iitb.ac.in> Reply-To: carsteno@de.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Sukanto Ghosh Return-path: Received: from mtagate7.de.ibm.com ([195.212.29.156]:1876 "EHLO mtagate7.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751553AbYF3OOZ (ORCPT ); Mon, 30 Jun 2008 10:14:25 -0400 Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate7.de.ibm.com (8.13.8/8.13.8) with ESMTP id m5UEDi7M180270 for ; Mon, 30 Jun 2008 14:13:44 GMT Received: from d12av01.megacenter.de.ibm.com (d12av01.megacenter.de.ibm.com [9.149.165.212]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v9.0) with ESMTP id m5UEDiLH3756088 for ; Mon, 30 Jun 2008 16:13:44 +0200 Received: from d12av01.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av01.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m5UEDidK008381 for ; Mon, 30 Jun 2008 16:13:44 +0200 In-Reply-To: <2452.10.9.1.37.1214831194.squirrel@www.cse.iitb.ac.in> Sender: kvm-owner@vger.kernel.org List-ID: Sukanto Ghosh wrote: > What do these refer to ? > i) kvm_rmap_desc > ii) rmap_pde > iii) kvm_mmu_page-> spt ??? ( i thought kvm_mmu_page itself refers to page > of shadow PT, then what does spt points to ? ) I liked Avis presentation about the kvm softmmu at the developer forum 2007. I felt like I understood what's going on after that, but I've forgotten at least 75% since. Maybe this helps? http://kvm.qumranet.com/kvmwiki/KvmForum2007?action=AttachFile&do=get&target=shadowy-depths-of-the-kvm-mmu.pdf