From: Petr Fedchenkov <giggsoff@gmail.com>
To: xen-devel@lists.xen.org
Subject: [BUG] usb devices disappear on xl reboot or reboot from inside of HVM DomU
Date: Wed, 7 Apr 2021 17:12:18 +0300 [thread overview]
Message-ID: <CAAM4PUgJ-fKXriQxaA2anU_7r+a1_ygR8aatuf0_icOMoZsHtA@mail.gmail.com> (raw)
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Hi.
I have the HVM DomU with usb device assigned to it
Config for xl:
# This file is automatically generated by domainmgr
name = "12e26d98-2f0d-450c-a1ee-d287bd37794c.1.1"
type = "hvm"
uuid = "12e26d98-2f0d-450c-a1ee-d287bd37794c"
vnc = 0
memory = 977
maxmem = 977
vcpus = 1
maxcpus = 1
boot = "dc"
disk =
['/persist/vault/volumes/630ad2a6-cd3f-4659-8ac0-cdcfd5ad6b75#0.qcow2,qcow2,xvda,rw','/run/domainmgr/cloudinit/12e26d98-2f0d-450c-a1ee-d287bd37794c.cidata,raw,xvdz,ro']
vif = ['bridge=bn1,vifname=nbu1x1,mac=00:16:3e:00:01:01,type=vif']
serial = ['pty']
usbctrl = ['type=auto, version=2, ports=6']
usbdev = ['hostbus=2,hostaddr=2,controller=0,port=1']
It boots and works as expected.
But after doing xl reboot or reboot from inside DomU, I cannot see usb
devices inside VM.
Before reboot:
#xenstore-ls
...
vusb = ""
0 = ""
type = "devicemodel"
usb-ver = "2"
num-ports = "6"
port = ""
1 = "2-1"
2 = ""
3 = ""
4 = ""
5 = ""
6 = ""
#xl usb-list
Devid Type BE state usb-ver ports
0 devicemodel 0 0 2 6
Port 1: Bus 002 Device 002
Port 2:
Port 3:
Port 4:
Port 5:
Port 6:
After reboot:
#xenstore-ls
...
vusb = ""
0 = ""
type = "devicemodel"
usb-ver = "2"
num-ports = "6"
port = ""
1 = ""
2 = ""
3 = ""
4 = ""
5 = ""
6 = ""
#xl usb-list
Devid Type BE state usb-ver ports
0 devicemodel 0 0 2 6
Port 1:
Port 2:
Port 3:
Port 4:
Port 5:
Port 6:
Steps to reproduce are inside https://github.com/lf-edge/eden/issues/578
xen_version : 4.14.1
Best regard,
Petr Fedchenkov
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