hmp: Allow using qdev ID for qemu-io command
In order to issue requests on an existing BlockBackend with the
'qemu-io' HMP command, allow specifying the BlockBackend not only with a
BlockBackend name, but also with a qdev ID/QOM path for a device that
owns the (possibly anonymous) BlockBackend.
Because qdev names could be conflicting with BlockBackend and node
names, introduce a -d option to explicitly address a device. If the
option is not given, a BlockBackend or a node is addressed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index cfcc044..dc23185 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1875,9 +1875,11 @@
{
.name = "qemu-io",
- .args_type = "device:B,command:s",
- .params = "[device] \"[command]\"",
- .help = "run a qemu-io command on a block device",
+ .args_type = "qdev:-d,device:B,command:s",
+ .params = "[-d] [device] \"[command]\"",
+ .help = "run a qemu-io command on a block device\n\t\t\t"
+ "-d: [device] is a device ID rather than a "
+ "drive ID or node name",
.cmd = hmp_qemu_io,
},
