Re: [XEN PATCH] libxl: Fix device_add QMP calls with QEMU 9.2 and newer

[Maximilian Engelhardt <maxi@xxxxxxxxxxxxx>]

On Monday, 15 December 2025 14:51:24 CET Anthony PERARD wrote:
> From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
> 
> QEMU used to ignore JSON types and do conversion string <-> integer
> automatically for the command "device_add", but that was removed in
> QEMU 9.2 (428d1789df91 ("docs/about: Belatedly document tightening of
> QMP device_add checking")).
> 
> Fixes: 9718ab394d5d ("libxl_usb: Make libxl__device_usbctrl_add uses
> ev_qmp")
> Fixes: 40c7eca10a82 ("libxl_usb: Make libxl__device_usbdev_add
> uses ev_qmp")
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

I can confirm with this patch usb passthrough works on the debian xen 4.20 
package.

Tested-by: Maximilian Engelhardt <maxi@xxxxxxxxxxxxx>