[PATCH 2/3] docs: drvqemu: Give example how to query device properties for overriding

Peter Krempa pkrempa at redhat.com
Mon Nov 21 12:57:07 UTC 2022


Add an example of invoking qemu with '-device TYPE,?' to query
properties of a given type.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 docs/drvqemu.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/drvqemu.rst b/docs/drvqemu.rst
index 7bfb28ea9c..b31b1785db 100644
--- a/docs/drvqemu.rst
+++ b/docs/drvqemu.rst
@@ -722,6 +722,11 @@ attribute are:
 The overrides are applied only to initial device configuration passed to QEMU
 via the commandline. Later hotplug operations will not apply any modifications.

+The properties of a device can be queried directly in qemu (e.g. for the
+``virtio-blk-pci`` device) via ::
+
+  # qemu-system-x86_64 -device virtio-blk-pci,?
+
 Configuring override for a device alias which is not used or attempting to
 remove a device property which is not formatted by libvirt will cause failure
 to startup the VM.
-- 
2.37.3



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