From: Alex Williamson <alex.l.williamson@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 1792523] Re: usb passthrough not resetting on host after vm shutdown if started with -daemonize
Date: Fri, 14 Sep 2018 15:48:55 -0000 [thread overview]
Message-ID: <153694013547.8804.11010988468370046033.malone@soybean.canonical.com> (raw)
In-Reply-To: 153690806645.16635.9456702675801152758.malonedeb@chaenomeles.canonical.com
To clarify, are the problematic USB passthrough devices these:
-device usb-host,vendorid=0x04d9,productid=0x0171 \
-device usb-host,vendorid=0x1532,productid=0x005c \
-device usb-host,vendorid=0x1b1c,productid=0x0c09
or this:
-device vfio-pci,host=04:00.0 \
Without knowing what the vfio-pci devices are (assuming 1:00.x is
GPU+audio), I don't know if passthrough is being used as a colloquial
for device assignment or if the issue is really with the usb-host
devices.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1792523
Title:
usb passthrough not resetting on host after vm shutdown if started
with -daemonize
Status in QEMU:
New
Bug description:
Below is the full Qemu command used to launch the VM. Have been using
this same setup since Qemu 2.12, plus a couple of cherry picked patch
commits fixing ide-hd and e1000e in Windows guests. Both sets of
patches have now been merged to 3.0, so decided to update to 3.0.
The VM launches and runs fine, but after shutting down, the usb
devices that are passed through from the host (keyboard, mouse) do not
work until unplugged and plugged in again. Have narrowed this down to
the -daemonize -pidfile arguments.. if those lines are removed, usb
devices work in the host again right away after VM shutdown.
CPU: Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
OS: Linux dev 4.18.6-arch1-1-ARCH #1 SMP PREEMPT Wed Sep 5 11:54:09 UTC 2018 x86_64 GNU/Linux
Thank you for looking into this!
#!/usr/bin/env bash
echo vfio-pci > /sys/bus/pci/devices/0000:04:00.0/driver_override
echo 0000:04:00.0 > /sys/bus/pci/devices/0000:04:00.0/driver/unbind
echo 0000:04:00.0 > /sys/bus/pci/drivers/vfio-pci/bind
echo > /sys/bus/pci/devices/0000:04:00.0/driver_override
/usr/bin/qemu-system-x86_64 \
-name winnt \
-daemonize \
-pidfile /run/vms/qemu/winnt.pid \
-boot menu=on \
-drive if=pflash,format=raw,readonly,file=/opt/vms/qemu/machines/ovmf_code_patched.fd \
-drive if=pflash,format=raw,file=/opt/vms/qemu/machines/winnt/ovmf_vars_patched.fd \
-machine pc-q35-3.0,accel=kvm \
-nodefaults \
-cpu host,kvm=off,hv_vendor_id=RedHat,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff \
-accel kvm \
-smp 4,sockets=1,cores=4,threads=1 \
-m 16G \
-nic bridge,br=br0,mac=52:54:00:12:34:77,model=e1000e \
-device vfio-pci,host=01:00.0,multifunction=on \
-device vfio-pci,host=01:00.1 \
-vga none \
-display none \
-monitor none \
-blockdev raw,node-name=ide-hd.0,cache.direct=on,discard=unmap,file.driver=host_device,file.aio=native,file.filename=/dev/disk/by-id/ata-WDC_WDS500G2B0A-00SM50_181265803048 \
-device ide-hd,drive=ide-hd.0,bus=ide.0,rotation_rate=1 \
-blockdev raw,node-name=ide-hd.1,cache.direct=on,file.driver=host_device,file.aio=native,file.filename=/dev/disk/by-id/ata-TOSHIBA_HDWE160_X746K8ZTF56D-part1 \
-device ide-hd,drive=ide-hd.1,bus=ide.1 \
-device vfio-pci,host=04:00.0 \
-device qemu-xhci \
-device usb-host,vendorid=0x04d9,productid=0x0171 \
-device usb-host,vendorid=0x1532,productid=0x005c \
-device usb-host,vendorid=0x1b1c,productid=0x0c09
echo 0000:04:00.0 > /sys/bus/pci/devices/0000:04:00.0/driver/unbind
echo 0000:04:00.0 > /sys/bus/pci/drivers_probe
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1792523/+subscriptions
next prev parent reply other threads:[~2018-09-14 16:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 6:54 [Qemu-devel] [Bug 1792523] [NEW] usb passthrough not resetting on host after vm shutdown if started with -daemonize Marshall Porter
2018-09-14 15:48 ` Alex Williamson [this message]
2018-09-14 18:26 ` [Qemu-devel] [Bug 1792523] " Marshall Porter
2019-10-22 4:45 ` Marshall Porter
2020-11-12 18:26 ` Thomas Huth
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=153694013547.8804.11010988468370046033.malone@soybean.canonical.com \
--to=alex.l.williamson@gmail.com \
--cc=1792523@bugs.launchpad.net \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.