From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrea Arcangeli Subject: Re: [PATCH 2/3] add SPTE_HOST_WRITEABLE flag to the shadow ptes Date: Thu, 24 Sep 2009 18:55:46 +0200 Message-ID: <20090924165545.GA6864@random.random> References: <1253731638-24575-1-git-send-email-ieidus@redhat.com> <1253731638-24575-2-git-send-email-ieidus@redhat.com> <1253731638-24575-3-git-send-email-ieidus@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: avi@redhat.com, kvm@vger.kernel.org, mtosatti@redhat.com To: Izik Eidus Return-path: Received: from mx1.redhat.com ([209.132.183.28]:60028 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751949AbZIXQzn (ORCPT ); Thu, 24 Sep 2009 12:55:43 -0400 Received: from int-mx04.intmail.prod.int.phx2.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.17]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id n8OGtlPW018103 for ; Thu, 24 Sep 2009 12:55:47 -0400 Content-Disposition: inline In-Reply-To: <1253731638-24575-3-git-send-email-ieidus@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Sep 23, 2009 at 09:47:17PM +0300, Izik Eidus wrote: > this flag notify that the host physical page we are pointing to from > the spte is write protected, and therefore we cant change its access > to be write unless we run get_user_pages(write = 1). > > (this is needed for change_pte support in kvm) > > Signed-off-by: Izik Eidus Acked-by: Andrea Arcangeli