From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932264Ab0FUQMW (ORCPT ); Mon, 21 Jun 2010 12:12:22 -0400 Received: from smtp.ctxuk.citrix.com ([62.200.22.115]:2247 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757913Ab0FUQMU (ORCPT ); Mon, 21 Jun 2010 12:12:20 -0400 X-IronPort-AV: E=Sophos;i="4.53,453,1272844800"; d="scan'208";a="514333" Date: Mon, 21 Jun 2010 17:12:20 +0100 From: Stefano Stabellini X-X-Sender: sstabellini@kaball-desktop To: "linux-kernel@vger.kernel.org" CC: Jeremy Fitzhardinge , "xen-devel@lists.xensource.com" , Don Dutile , Sheng Yang , Stefano Stabellini Subject: [PATCH 0/12] PV on HVM Xen Message-ID: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, this is another update on the PV on HVM Xen series; a list of changes compared to the previous version follows: - the bug caused by modprobing xen frontend modules when xenbus is not initialized has been fixed: now xenbus is always initialized during postcore_initcall, before device drivers are initialized, so that we can be sure that loading xen pv frontends will always happen afterwards, no matter how the xen platform pci driver is built. In order to do that xenbus_probe has been moved out of the xenbus initialization and called it later on at device_initcall. - a new HVMOP_pagetable_dying hypercall has been added to notify Xen that a pagetable is going to be destroyed: this improves performances significantly when running on shadow pagetables. A patch is currently need on the Xen side for this to work. Jeremy's comments have been addressed: - xen_guest_init has been renamed xen_hvm_guest_init; - init_hvm_time has been moved to arch/x86/xen/time.c; Konrad's comments have been addressed: - gnttab_max_nr_grant_frames has been renamed gnttab_max_grant_frames; - few inaccurate comments have been rewritten; - the preprocessor checks in platform-pci-unplug.c have been moved to platform_pci.h; - few other code style improvements, like using dev_err instead of printk and strncmp instead of strcmp. A git tree is available here: git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git branch name 2.6.34-pvhvm-v4. Cheers, Stefano From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Stabellini Subject: [PATCH 0/12] PV on HVM Xen Date: Mon, 21 Jun 2010 17:12:20 +0100 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "linux-kernel@vger.kernel.org" Cc: Stefano Stabellini , Jeremy Fitzhardinge , "xen-devel@lists.xensource.com" , Don Dutile , Sheng Yang List-Id: xen-devel@lists.xenproject.org Hi all, this is another update on the PV on HVM Xen series; a list of changes compared to the previous version follows: - the bug caused by modprobing xen frontend modules when xenbus is not initialized has been fixed: now xenbus is always initialized during postcore_initcall, before device drivers are initialized, so that we can be sure that loading xen pv frontends will always happen afterwards, no matter how the xen platform pci driver is built. In order to do that xenbus_probe has been moved out of the xenbus initialization and called it later on at device_initcall. - a new HVMOP_pagetable_dying hypercall has been added to notify Xen that a pagetable is going to be destroyed: this improves performances significantly when running on shadow pagetables. A patch is currently need on the Xen side for this to work. Jeremy's comments have been addressed: - xen_guest_init has been renamed xen_hvm_guest_init; - init_hvm_time has been moved to arch/x86/xen/time.c; Konrad's comments have been addressed: - gnttab_max_nr_grant_frames has been renamed gnttab_max_grant_frames; - few inaccurate comments have been rewritten; - the preprocessor checks in platform-pci-unplug.c have been moved to platform_pci.h; - few other code style improvements, like using dev_err instead of printk and strncmp instead of strcmp. A git tree is available here: git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git branch name 2.6.34-pvhvm-v4. Cheers, Stefano