hmp: add virtio commands

This patch implements the HMP versions of the virtio QMP commands.

[Jonah: Adjusted hmp monitor output format for features / statuses
	with their descriptions.]

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com>
Message-Id: <1660220684-24909-7-git-send-email-jonah.palmer@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index e012035541..754b1e8408 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -923,3 +923,73 @@ SRST
   ``stats``
     Show runtime-collected statistics
 ERST
+
+    {
+        .name      = "virtio",
+        .args_type = "",
+        .params    = "",
+        .help      = "List all available virtio devices",
+        .cmd       = hmp_virtio_query,
+        .flags     = "p",
+    },
+
+SRST
+  ``info virtio``
+    List all available virtio devices
+ERST
+
+    {
+        .name      = "virtio-status",
+        .args_type = "path:s",
+        .params    = "path",
+        .help      = "Display status of a given virtio device",
+        .cmd       = hmp_virtio_status,
+        .flags     = "p",
+    },
+
+SRST
+  ``info virtio-status`` *path*
+    Display status of a given virtio device
+ERST
+
+    {
+        .name      = "virtio-queue-status",
+        .args_type = "path:s,queue:i",
+        .params    = "path queue",
+        .help      = "Display status of a given virtio queue",
+        .cmd       = hmp_virtio_queue_status,
+        .flags     = "p",
+    },
+
+SRST
+  ``info virtio-queue-status`` *path* *queue*
+    Display status of a given virtio queue
+ERST
+
+    {
+        .name      = "virtio-vhost-queue-status",
+        .args_type = "path:s,queue:i",
+        .params    = "path queue",
+        .help      = "Display status of a given vhost queue",
+        .cmd       = hmp_vhost_queue_status,
+        .flags     = "p",
+    },
+
+SRST
+  ``info virtio-vhost-queue-status`` *path* *queue*
+    Display status of a given vhost queue
+ERST
+
+    {
+        .name       = "virtio-queue-element",
+        .args_type  = "path:s,queue:i,index:i?",
+        .params     = "path queue [index]",
+        .help       = "Display element of a given virtio queue",
+        .cmd        = hmp_virtio_queue_element,
+        .flags      = "p",
+    },
+
+SRST
+  ``info virtio-queue-element`` *path* *queue* [*index*]
+    Display element of a given virtio queue
+ERST