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Passing Zigbee USB Device Causes High CPU in VM

joelones
in VM Engine (KVM)

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I need to pass the following device to a Hass OS VM (Home Assistant):

 

"Texas Instruments TI CC2531 USB CDC (0451:16a8)"
 

The device is a USB CC2531  dongle flashed with zigbee2mqtt firmware which the VM sees as /dev/ttyACM0.

 

Without the dongle passed the qemu-system-x86 process for this VM consumes approx 25% cpu, when attached to the VM the cpu rises to 150%.

 

I really don't have any pertinenent logs or any. I'm on 6.8 stable and the VM is using Q35-2.11.

 

Any advice thoughts here will be greatly appreciated.

 

 

 

Edited by joelones

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