From patchwork Thu Mar 8 12:52:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Druzhinin X-Patchwork-Id: 10268047 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4618C602C8 for ; Thu, 8 Mar 2018 13:13:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B29127031 for ; Thu, 8 Mar 2018 13:13:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6F8B42846C; Thu, 8 Mar 2018 13:13:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E2C6F27031 for ; Thu, 8 Mar 2018 13:13:00 +0000 (UTC) Received: from localhost ([::1]:38659 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etvLw-0000jw-2M for patchwork-qemu-devel@patchwork.kernel.org; Thu, 08 Mar 2018 08:13:00 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59694) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1etv2Q-0007n0-FI for qemu-devel@nongnu.org; Thu, 08 Mar 2018 07:52:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1etv2L-0006oj-Nm for qemu-devel@nongnu.org; Thu, 08 Mar 2018 07:52:50 -0500 Received: from smtp.citrix.com ([66.165.176.89]:28406) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1etv2L-0006o6-Hw for qemu-devel@nongnu.org; Thu, 08 Mar 2018 07:52:45 -0500 X-IronPort-AV: E=Sophos;i="5.47,441,1515456000"; d="scan'208";a="467039514" From: Igor Druzhinin To: , Date: Thu, 8 Mar 2018 12:52:31 +0000 Message-ID: <1520513551-19851-1-git-send-email-igor.druzhinin@citrix.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 66.165.176.89 Subject: [Qemu-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Igor Druzhinin , sstabellini@kernel.org, mst@redhat.com, paul.durrant@citrix.com, anthony.perard@citrix.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This should help to avoid problems with accessing the device after migration/resume without PV drivers. Older systems will acquire the new record when migrated which should not change their state for worse. Signed-off-by: Igor Druzhinin Acked-by: Anthony PERARD --- hw/i386/xen/xen_pvdevice.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/hw/i386/xen/xen_pvdevice.c b/hw/i386/xen/xen_pvdevice.c index c093b34..ef22a03 100644 --- a/hw/i386/xen/xen_pvdevice.c +++ b/hw/i386/xen/xen_pvdevice.c @@ -71,6 +71,16 @@ static const MemoryRegionOps xen_pv_mmio_ops = { .endianness = DEVICE_LITTLE_ENDIAN, }; +static const VMStateDescription vmstate_xen_pvdevice = { + .name = "xen-pvdevice", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_PCI_DEVICE(parent_obj, XenPVDevice), + VMSTATE_END_OF_LIST() + } +}; + static void xen_pv_realize(PCIDevice *pci_dev, Error **errp) { XenPVDevice *d = XEN_PV_DEVICE(pci_dev); @@ -120,6 +130,7 @@ static void xen_pv_class_init(ObjectClass *klass, void *data) k->class_id = PCI_CLASS_SYSTEM_OTHER; dc->desc = "Xen PV Device"; dc->props = xen_pv_props; + dc->vmsd = &vmstate_xen_pvdevice; } static const TypeInfo xen_pv_type_info = {