From f28232d1a4658edc844cd84c54c0913b02d49b75 Mon Sep 17 00:00:00 2001 From: Peter Krempa Date: Mon, 21 Nov 2022 13:46:29 +0100 Subject: [PATCH] docs: drvqemu: Give example how to query device properties for overriding MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add an example of invoking qemu with '-device TYPE,?' to query properties of a given type. Signed-off-by: Peter Krempa Reviewed-by: Ján Tomko --- 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.