From mboxrd@z Thu Jan 1 00:00:00 1970 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 From: Igor Druzhinin Date: Thu, 8 Mar 2018 12:52:31 +0000 Message-ID: <1520513551-19851-1-git-send-email-igor.druzhinin@citrix.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH] xen-pvdevice: Introduce a simplistic xen-pvdevice save state List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, paul.durrant@citrix.com, anthony.perard@citrix.com, mst@redhat.com, pbonzini@redhat.com, Igor Druzhinin 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 --- 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 = { -- 2.7.4