{"id":818305,"url":"http://patchwork.ozlabs.org/api/patches/818305/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170925160517.681-2-dgilbert@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170925160517.681-2-dgilbert@redhat.com>","list_archive_url":null,"date":"2017-09-25T16:05:17","name":"[1/1] virtio/pci/migration: Convert to VMState","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"4391d10ca68b41dd1e9e5cba1ee7e85ca56ac208","submitter":{"id":48102,"url":"http://patchwork.ozlabs.org/api/people/48102/?format=json","name":"Dr. David Alan Gilbert","email":"dgilbert@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20170925160517.681-2-dgilbert@redhat.com/mbox/","series":[{"id":4985,"url":"http://patchwork.ozlabs.org/api/series/4985/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=4985","date":"2017-09-25T16:05:16","name":"VMState conversion for virtio-pci 'modern state'","version":1,"mbox":"http://patchwork.ozlabs.org/series/4985/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/818305/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/818305/checks/","tags":{},"related":[],"headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)","ext-mx03.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx03.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=dgilbert@redhat.com"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3y188Q19fRz9t3t\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 26 Sep 2017 02:06:13 +1000 (AEST)","from localhost ([::1]:43305 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dwVta-0005YA-Oc\n\tfor incoming@patchwork.ozlabs.org; Mon, 25 Sep 2017 12:06:10 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:48321)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <dgilbert@redhat.com>) id 1dwVsu-0005Wp-TC\n\tfor qemu-devel@nongnu.org; Mon, 25 Sep 2017 12:05:29 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <dgilbert@redhat.com>) id 1dwVss-0000XM-Vz\n\tfor qemu-devel@nongnu.org; Mon, 25 Sep 2017 12:05:28 -0400","from mx1.redhat.com ([209.132.183.28]:42866)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <dgilbert@redhat.com>) id 1dwVss-0000Wu-NR\n\tfor qemu-devel@nongnu.org; Mon, 25 Sep 2017 12:05:26 -0400","from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id A0D567E429\n\tfor <qemu-devel@nongnu.org>; Mon, 25 Sep 2017 16:05:25 +0000 (UTC)","from dgilbert-t530.redhat.com (ovpn-116-100.ams2.redhat.com\n\t[10.36.116.100])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 2655870BD7;\n\tMon, 25 Sep 2017 16:05:23 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com A0D567E429","From":"\"Dr. David Alan Gilbert (git)\" <dgilbert@redhat.com>","To":"qemu-devel@nongnu.org,\n\tjasowang@redhat.com,\n\tmst@redhat.com","Date":"Mon, 25 Sep 2017 17:05:17 +0100","Message-Id":"<20170925160517.681-2-dgilbert@redhat.com>","In-Reply-To":"<20170925160517.681-1-dgilbert@redhat.com>","References":"<20170925160517.681-1-dgilbert@redhat.com>","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.12","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.27]);\n\tMon, 25 Sep 2017 16:05:25 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"[Qemu-devel] [PATCH 1/1] virtio/pci/migration: Convert to VMState","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"quintela@redhat.com","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"},"content":"From: \"Dr. David Alan Gilbert\" <dgilbert@redhat.com>\n\nConvert the 'modern_state' part of virtio-pci to modern migration\nmacros.\n\nSigned-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>\n---\n hw/virtio/virtio-pci.c | 108 +++++++++++++------------------------------------\n 1 file changed, 27 insertions(+), 81 deletions(-)","diff":"diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c\nindex 8b0d6b69cd..f825a68a84 100644\n--- a/hw/virtio/virtio-pci.c\n+++ b/hw/virtio/virtio-pci.c\n@@ -88,77 +88,19 @@ static void virtio_pci_save_config(DeviceState *d, QEMUFile *f)\n         qemu_put_be16(f, vdev->config_vector);\n }\n \n-static void virtio_pci_load_modern_queue_state(VirtIOPCIQueue *vq,\n-                                               QEMUFile *f)\n-{\n-    vq->num = qemu_get_be16(f);\n-    vq->enabled = qemu_get_be16(f);\n-    vq->desc[0] = qemu_get_be32(f);\n-    vq->desc[1] = qemu_get_be32(f);\n-    vq->avail[0] = qemu_get_be32(f);\n-    vq->avail[1] = qemu_get_be32(f);\n-    vq->used[0] = qemu_get_be32(f);\n-    vq->used[1] = qemu_get_be32(f);\n-}\n-\n-static bool virtio_pci_has_extra_state(DeviceState *d)\n-{\n-    VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);\n-\n-    return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA;\n-}\n-\n-static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size,\n-                                       VMStateField *field)\n-{\n-    VirtIOPCIProxy *proxy = pv;\n-    int i;\n-\n-    proxy->dfselect = qemu_get_be32(f);\n-    proxy->gfselect = qemu_get_be32(f);\n-    proxy->guest_features[0] = qemu_get_be32(f);\n-    proxy->guest_features[1] = qemu_get_be32(f);\n-    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {\n-        virtio_pci_load_modern_queue_state(&proxy->vqs[i], f);\n-    }\n-\n-    return 0;\n-}\n-\n-static void virtio_pci_save_modern_queue_state(VirtIOPCIQueue *vq,\n-                                               QEMUFile *f)\n-{\n-    qemu_put_be16(f, vq->num);\n-    qemu_put_be16(f, vq->enabled);\n-    qemu_put_be32(f, vq->desc[0]);\n-    qemu_put_be32(f, vq->desc[1]);\n-    qemu_put_be32(f, vq->avail[0]);\n-    qemu_put_be32(f, vq->avail[1]);\n-    qemu_put_be32(f, vq->used[0]);\n-    qemu_put_be32(f, vq->used[1]);\n-}\n-\n-static int put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size,\n-                                       VMStateField *field, QJSON *vmdesc)\n-{\n-    VirtIOPCIProxy *proxy = pv;\n-    int i;\n-\n-    qemu_put_be32(f, proxy->dfselect);\n-    qemu_put_be32(f, proxy->gfselect);\n-    qemu_put_be32(f, proxy->guest_features[0]);\n-    qemu_put_be32(f, proxy->guest_features[1]);\n-    for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {\n-        virtio_pci_save_modern_queue_state(&proxy->vqs[i], f);\n+static const VMStateDescription vmstate_virtio_pci_modern_queue_state = {\n+    .name = \"virtio_pci/modern_queue_state\",\n+    .version_id = 1,\n+    .minimum_version_id = 1,\n+    .fields = (VMStateField[]) {\n+        VMSTATE_UINT16(num, VirtIOPCIQueue),\n+        VMSTATE_UNUSED(1), /* enabled was stored as be16 */\n+        VMSTATE_BOOL(enabled, VirtIOPCIQueue),\n+        VMSTATE_UINT32_ARRAY(desc, VirtIOPCIQueue, 2),\n+        VMSTATE_UINT32_ARRAY(avail, VirtIOPCIQueue, 2),\n+        VMSTATE_UINT32_ARRAY(used, VirtIOPCIQueue, 2),\n+        VMSTATE_END_OF_LIST()\n     }\n-\n-    return 0;\n-}\n-\n-static const VMStateInfo vmstate_info_virtio_pci_modern_state = {\n-    .name = \"virtqueue_state\",\n-    .get = get_virtio_pci_modern_state,\n-    .put = put_virtio_pci_modern_state,\n };\n \n static bool virtio_pci_modern_state_needed(void *opaque)\n@@ -168,21 +110,18 @@ static bool virtio_pci_modern_state_needed(void *opaque)\n     return virtio_pci_modern(proxy);\n }\n \n-static const VMStateDescription vmstate_virtio_pci_modern_state = {\n+static const VMStateDescription vmstate_virtio_pci_modern_state_sub = {\n     .name = \"virtio_pci/modern_state\",\n     .version_id = 1,\n     .minimum_version_id = 1,\n     .needed = &virtio_pci_modern_state_needed,\n     .fields = (VMStateField[]) {\n-        {\n-            .name         = \"modern_state\",\n-            .version_id   = 0,\n-            .field_exists = NULL,\n-            .size         = 0,\n-            .info         = &vmstate_info_virtio_pci_modern_state,\n-            .flags        = VMS_SINGLE,\n-            .offset       = 0,\n-        },\n+        VMSTATE_UINT32(dfselect, VirtIOPCIProxy),\n+        VMSTATE_UINT32(gfselect, VirtIOPCIProxy),\n+        VMSTATE_UINT32_ARRAY(guest_features, VirtIOPCIProxy, 2),\n+        VMSTATE_STRUCT_ARRAY(vqs, VirtIOPCIProxy, VIRTIO_QUEUE_MAX, 0,\n+                             vmstate_virtio_pci_modern_queue_state,\n+                             VirtIOPCIQueue),\n         VMSTATE_END_OF_LIST()\n     }\n };\n@@ -196,11 +135,18 @@ static const VMStateDescription vmstate_virtio_pci = {\n         VMSTATE_END_OF_LIST()\n     },\n     .subsections = (const VMStateDescription*[]) {\n-        &vmstate_virtio_pci_modern_state,\n+        &vmstate_virtio_pci_modern_state_sub,\n         NULL\n     }\n };\n \n+static bool virtio_pci_has_extra_state(DeviceState *d)\n+{\n+    VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);\n+\n+    return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA;\n+}\n+\n static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f)\n {\n     VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);\n","prefixes":["1/1"]}