From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760441Ab0JGMcq (ORCPT ); Thu, 7 Oct 2010 08:32:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:13176 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760402Ab0JGMcp (ORCPT ); Thu, 7 Oct 2010 08:32:45 -0400 Message-ID: <4CADBDB1.9060608@redhat.com> Date: Thu, 07 Oct 2010 14:31:45 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Thunderbird/3.1.4 MIME-Version: 1.0 To: Gleb Natapov CC: kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mingo@elte.hu, a.p.zijlstra@chello.nl, tglx@linutronix.de, hpa@zytor.com, riel@redhat.com, cl@linux-foundation.org, mtosatti@redhat.com Subject: Re: [PATCH v6 04/12] Add memory slot versioning and use it to provide fast guest write interface References: <1286207794-16120-1-git-send-email-gleb@redhat.com> <1286207794-16120-5-git-send-email-gleb@redhat.com> In-Reply-To: <1286207794-16120-5-git-send-email-gleb@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/04/2010 05:56 PM, Gleb Natapov wrote: > Keep track of memslots changes by keeping generation number in memslots > structure. Provide kvm_write_guest_cached() function that skips > gfn_to_hva() translation if memslots was not changed since previous > invocation. btw, this patch (and patch 5, and perhaps more) can be applied independently. If you like, you can submit them before the patch set is complete to reduce your queue length. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.