virtio_console: virtio 1.0 support

Pretty straight-forward, just use accessors for all fields.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 17 insertions, 12 deletions

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 8d00aa7f60f0..775c89821364 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -566,9 +566,9 @@ static ssize_t __send_control_msg(struct ports_device *portdev, u32 port_id,
         if (!use_multiport(portdev))
                 return 0;
 
-        cpkt.id = port_id;
-        cpkt.event = event;
-        cpkt.value = value;
+        cpkt.id = cpu_to_virtio32(portdev->vdev, port_id);
+        cpkt.event = cpu_to_virtio16(portdev->vdev, event);
+        cpkt.value = cpu_to_virtio16(portdev->vdev, value);
 
         vq = portdev->c_ovq;
 
@@ -1602,7 +1602,8 @@ static void unplug_port(struct port *port)
 }
 
 /* Any private messages that the Host and Guest want to share */
-static void handle_control_message(struct ports_device *portdev,
+static void handle_control_message(struct virtio_device *vdev,
+                                   struct ports_device *portdev,
                                    struct port_buffer *buf)
 {
         struct virtio_console_control *cpkt;
@@ -1612,15 +1613,16 @@ static void handle_control_message(struct ports_device *portdev,
 
         cpkt = (struct virtio_console_control *)(buf->buf + buf->offset);
 
-        port = find_port_by_id(portdev, cpkt->id);
-        if (!port && cpkt->event != VIRTIO_CONSOLE_PORT_ADD) {
+        port = find_port_by_id(portdev, virtio32_to_cpu(vdev, cpkt->id));
+        if (!port &&
+            cpkt->event != cpu_to_virtio16(vdev, VIRTIO_CONSOLE_PORT_ADD)) {
                 /* No valid header at start of buffer.  Drop it. */
                 dev_dbg(&portdev->vdev->dev,
                         "Invalid index %u in control packet\n", cpkt->id);
                 return;
         }
 
-        switch (cpkt->event) {
+        switch (virtio16_to_cpu(vdev, cpkt->event)) {
         case VIRTIO_CONSOLE_PORT_ADD:
                 if (port) {
                         dev_dbg(&portdev->vdev->dev,
@@ -1628,13 +1630,15 @@ static void handle_control_message(struct ports_device *portdev,
                         send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
                         break;
                 }
-                if (cpkt->id >= portdev->config.max_nr_ports) {
+                if (virtio32_to_cpu(vdev, cpkt->id) >=
+                    portdev->config.max_nr_ports) {
                         dev_warn(&portdev->vdev->dev,
-                                "Request for adding port with out-of-bound id %u, max. supported id: %u\n",
+                                "Request for adding port with "
+                                "out-of-bound id %u, max. supported id: %u\n",
                                 cpkt->id, portdev->config.max_nr_ports - 1);
                         break;
                 }
-                add_port(portdev, cpkt->id);
+                add_port(portdev, virtio32_to_cpu(vdev, cpkt->id));
                 break;
         case VIRTIO_CONSOLE_PORT_REMOVE:
                 unplug_port(port);
@@ -1670,7 +1674,7 @@ static void handle_control_message(struct ports_device *portdev,
                 break;
         }
         case VIRTIO_CONSOLE_PORT_OPEN:
-                port->host_connected = cpkt->value;
+                port->host_connected = virtio16_to_cpu(vdev, cpkt->value);
                 wake_up_interruptible(&port->waitqueue);
                 /*
                  * If the host port got closed and the host had any
@@ -1752,7 +1756,7 @@ static void control_work_handler(struct work_struct *work)
                 buf->len = len;
                 buf->offset = 0;
 
-                handle_control_message(portdev, buf);
+                handle_control_message(vq->vdev, portdev, buf);
 
                 spin_lock(&portdev->c_ivq_lock);
                 if (add_inbuf(portdev->c_ivq, buf) < 0) {
@@ -2126,6 +2130,7 @@ static struct virtio_device_id id_table[] = {
 static unsigned int features[] = {
         VIRTIO_CONSOLE_F_SIZE,
         VIRTIO_CONSOLE_F_MULTIPORT,
+        VIRTIO_F_VERSION_1,
 };
 
 static struct virtio_device_id rproc_serial_id_table[] = {