Merge remote-tracking branch 'remotes/kwolf/tags/for-upstream' into staging

qdev: Add JSON -device

- Add a JSON mode to the -device command line option
- net/vhost-{user,vdpa}: Fix device compatibility check
- Minor iotests fixes

# gpg: Signature made Fri 15 Oct 2021 07:41:22 AM PDT
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]

* remotes/kwolf/tags/for-upstream:
  vl: Enable JSON syntax for -device
  qdev: Base object creation on QDict rather than QemuOpts
  virtio-net: Avoid QemuOpts in failover_find_primary_device()
  virtio-net: Store failover primary opts pointer locally
  qdev: Add Error parameter to hide_device() callbacks
  qemu-option: Allow deleting opts during qemu_opts_foreach()
  softmmu/qdev-monitor: add error handling in qdev_set_id
  qdev: Make DeviceState.id independent of QemuOpts
  qdev: Avoid using string visitor for properties
  iotests/051: Fix typo
  iotests/245: Fix type for iothread property
  qom: Reduce use of error_propagate()
  net/vhost-vdpa: Fix device compatibility check
  net/vhost-user: Fix device compatibility check
  net: Introduce NetClientInfo.check_peer_type()

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 11 insertions, 4 deletions

diff --git a/qapi/qdev.json b/qapi/qdev.json
index d75e68908b..69656b14df 100644
--- a/qapi/qdev.json
+++ b/qapi/qdev.json
@@ -32,17 +32,23 @@
 ##
 # @device_add:
 #
+# Add a device.
+#
 # @driver: the name of the new device's driver
 #
 # @bus: the device's parent bus (device tree path)
 #
 # @id: the device's ID, must be unique
 #
-# Additional arguments depend on the type.
-#
-# Add a device.
+# Features:
+# @json-cli: If present, the "-device" command line option supports JSON
+#            syntax with a structure identical to the arguments of this
+#            command.
 #
 # Notes:
+#
+# Additional arguments depend on the type.
+#
 # 1. For detailed information about this command, please refer to the
 #    'docs/qdev-device-use.txt' file.
 #
@@ -67,7 +73,8 @@
 ##
 { 'command': 'device_add',
   'data': {'driver': 'str', '*bus': 'str', '*id': 'str'},
-  'gen': false } # so we can get the additional arguments
+  'gen': false, # so we can get the additional arguments
+  'features': ['json-cli'] }
 
 ##
 # @device_del: