virtio: set any_layout in virtio core

Exceptions:
    - virtio-blk
    - compat machine types
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/block/virtio-blk.c

@@ -731,6 +731,7 @@ static uint64_t virtio_blk_get_features(VirtIODevice *vdev, uint64_t features)
     virtio_add_feature(&features, VIRTIO_BLK_F_TOPOLOGY);
     virtio_add_feature(&features, VIRTIO_BLK_F_BLK_SIZE);
     virtio_add_feature(&features, VIRTIO_BLK_F_SCSI);
+    virtio_clear_feature(&features, VIRTIO_F_ANY_LAYOUT);
 
     if (s->conf.config_wce) {
         virtio_add_feature(&features, VIRTIO_BLK_F_CONFIG_WCE);

hw/net/virtio-net.c

@@ -1777,8 +1777,6 @@ static void virtio_net_instance_init(Object *obj)
 }
 
 static Property virtio_net_properties[] = {
-    DEFINE_PROP_BIT("any_layout", VirtIONet, host_features,
-                    VIRTIO_F_ANY_LAYOUT, true),
     DEFINE_PROP_BIT("csum", VirtIONet, host_features, VIRTIO_NET_F_CSUM, true),
     DEFINE_PROP_BIT("guest_csum", VirtIONet, host_features,
                     VIRTIO_NET_F_GUEST_CSUM, true),

hw/scsi/virtio-scsi.c

@@ -953,8 +953,6 @@ static Property virtio_scsi_properties[] = {
                                                   0xFFFF),
     DEFINE_PROP_UINT32("cmd_per_lun", VirtIOSCSI, parent_obj.conf.cmd_per_lun,
                                                   128),
-    DEFINE_PROP_BIT("any_layout", VirtIOSCSI, host_features,
-                                              VIRTIO_F_ANY_LAYOUT, true),
     DEFINE_PROP_BIT("hotplug", VirtIOSCSI, host_features,
                                            VIRTIO_SCSI_F_HOTPLUG, true),
     DEFINE_PROP_BIT("param_change", VirtIOSCSI, host_features,

include/hw/compat.h

@@ -2,7 +2,27 @@
 #define HW_COMPAT_H
 
 #define HW_COMPAT_2_3 \
-        /* empty */
+        {\
+            .driver   = "virtio-blk-pci",\
+            .property = "any_layout",\
+            .value    = "off",\
+        },{\
+            .driver   = "virtio-balloon-pci",\
+            .property = "any_layout",\
+            .value    = "off",\
+        },{\
+            .driver   = "virtio-serial-pci",\
+            .property = "any_layout",\
+            .value    = "off",\
+        },{\
+            .driver   = "virtio-9p-pci",\
+            .property = "any_layout",\
+            .value    = "off",\
+        },{\
+            .driver   = "virtio-rng-pci",\
+            .property = "any_layout",\
+            .value    = "off",\
+        },
 
 #define HW_COMPAT_2_2 \
         /* empty */

include/hw/virtio/virtio.h

@@ -218,7 +218,9 @@ typedef struct VirtIORNGConf VirtIORNGConf;
     DEFINE_PROP_BIT64("event_idx", _state, _field,        \
                       VIRTIO_RING_F_EVENT_IDX, true),     \
     DEFINE_PROP_BIT64("notify_on_empty", _state, _field,  \
-                      VIRTIO_F_NOTIFY_ON_EMPTY, true)
+                      VIRTIO_F_NOTIFY_ON_EMPTY, true), \
+    DEFINE_PROP_BIT64("any_layout", _state, _field, \
+                      VIRTIO_F_ANY_LAYOUT, true)
 
 hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n);
 hwaddr virtio_queue_get_avail_addr(VirtIODevice *vdev, int n);