From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: [mtosatti-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org: [patch 3/4] paravirt: set_access_flags/set_wrprotect should use paravirt interface] Date: Thu, 31 Jan 2008 10:28:17 -0800 Message-ID: <47A21341.5020109@goop.org> References: <20080130223928.GA26561@dmt> <47A101A1.9030705@goop.org> <47A17637.4050800@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Marcelo Tosatti , kvm-devel To: Avi Kivity Return-path: In-Reply-To: <47A17637.4050800-atKUWr5tajBWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Avi Kivity wrote: > It has the advantage of not falsely triggering any unshadowing > heuristics, and of avoiding the lovely x86 emulator. Not sure how big > that advantage is, though. Fair enough. But doing partial pte updates needs an update-with-mask hypercall (or something) to prevent the hardware race. J ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/