[Qemu-devel] [Bug 1175513] [NEW] Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

[Qemu-devel] [Bug 1175513] [NEW] Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

[commiethebeastie]

Public bug reported:

I run qemu from git with such command:

qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
-enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
-drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
-drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
-spice port=5930,disable-ticketing

Before guest (Windows 7) reboot, videocard works in 3D mode with full
frequency. But after reboot videocard works in 3D only with powersafe
frequency. Then I must reboot host for recover gpu clock control.

** Affects: qemu
     Importance: Undecided
         Status: New

** Attachment added: "00002.png"
   https://bugs.launchpad.net/bugs/1175513/+attachment/3662378/+files/00002.png

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Title:
  Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

[commiethebeastie]

** Tags added: vfio-pci

** Attachment added: "lspci -vvvnn"
   https://bugs.launchpad.net/qemu/+bug/1175513/+attachment/3662420/+files/lspci1.txt

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Title:
  Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

[commiethebeastie]

Linux localhost 3.8.10-gentoo #3 SMP PREEMPT Wed May 1 19:30:30 MSK 2013
x86_64 AMD FX(tm)-8120 Eight-Core Processor AuthenticAMD GNU/Linux

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Title:
  Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

[Alex Williamson]

One-shot use is about the state of the art until we implement a way for
vfio to do a bus reset on devices.  A couple comments on the usage;
we're using the x-vga option to vfio-pci and also using -vga qxl.
Without specifying a bus for the vfio-pci device this will put qxl vga
and vfio vga both on the root complex with no way to switch between them
aside from completely disabling the device.  This likely means qxl is
disabled and effectively the same as booting with -vga none.  Second
oddity, vfio vga support wasn't added to the kernel until 3.9, how does
this qemu command like work on 3.8?

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Title:
  Qemu 1.5.0 gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

** Summary changed:

- Qemu 1.5.0 gpu clock control doesn`t work after guest reboot
+ Qemu 1.5-git gpu clock control doesn`t work after guest reboot

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

First I added radeon.ko and fglrx.ko to the blacklist.

Second I ran the

modprobe vfio-pci
echo "0000:02:00.0" > /sys/bus/pci/devices/0000\:02\:00.0/driver/unbind
echo "0000:02:00.1" > /sys/bus/pci/devices/0000\:02\:00.1/driver/unbind
echo "1002 6739" > /sys/bus/pci/drivers/vfio-pci/new_id
echo "1002 aa88" > /sys/bus/pci/drivers/vfio-pci/new_id

And third I ran qemu with the -device vfio-pci,host=02:00.0,x-vga=on
options

4-th I installed the Catalyst drivers in windows 7 and change display to
HDMI output. But during a reboot the Catalyst driver switches the
graphics card to powersave mode.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

With kernel-3.9.0 host system hangs after guest (win 7) poweroff or
reboot.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Alex Williamson]

Try these:

git://github.com/awilliam/linux-vfio.git vfio-vga-reset
git://github.com/awilliam/qemu-vfio.git vfio-vga-reset

When using both this kernel and this qemu, we'll do a PCI bus reset,
which should give you much more consistent behavior both between
instances of the guest and at guest reset.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

With VFIO_PCI_VGA, vfio-vga-reset branches and "-vga none -device vfio-
pci,host=02:00.0,x-vga=on" host system hangs after guest restarting or
turning off.

With no VFIO_PCI_VGA, vfio-vga-reset branches and "-vga none -device
vfio-pci,host=02:00.0" catalyst drivers works fine in guest. But after
guest restarting the video card is running in powersafe mode.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

With VFIO_PCI_VGA, vfio-vga-reset branches and "-vga none -device vfio-
pci,host=02:00.0,x-vga=on"  I also received an error:

"qemu-system-x86_64: Attempt to reset PCI bus for VGA support failed
(Inappropriate ioctl for device).  VGA may not work."

But the drivers were run without problems.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions

[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

I installed Windows 8 with VFIO_PCI_VGA, vfio-vga-reset branches and
"-vga none -device vfio-pci,host=02:00.0,x-vga=on" I received an error:

"qemu-system-x86_64: Attempt to reset PCI bus for VGA support failed
(Inappropriate ioctl for device). VGA may not work." on start.

Then I installed the catalyst drivers. I started the Valley benchmark
and the video card is working in normally 3D mode. After rebooting the
host system does not hang, but in guest graphics card was in powersafe
mode with 100 mhz GPU and 300 mhz memry clocks.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Alex Williamson]

Please confirm that you're running the kernel from this branch on the
host system:

git://github.com/awilliam/linux-vfio.git vfio-vga-reset

Both host kernel and qemu changes are required.  Unfortunately the error
code from the ioctl makes it difficult to tell if it isn't available in
the kernel or failed, something I need to correct in getting them
upstream.  These branches only modify the x-vga=on path.  Comment #8
indicates using this hangs the host, but comments #9 & #10 says the bus
reset call didn't work, did you perhaps boot back into the wrong kernel
after the system hang?

>From your lspci, 02:00.0 and 02:00.1 are below the 00:0b.0 root port.
The properties of 00:0b.0 seem to indicate that 02:00.0 and 02:00.1
should be the only iommu group below this root port, so a bus reset
should be available, assuming we're using the correct kernel.  In
addition to verifying the kernel in use, please attach the output of
`find /sys/kernel/iommu_groups/`

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

When I use vga none -device vfio-pci,host=02:00.0,x-vga=on with "Linux
localhost 3.9.0-rc2 #2 SMP PREEMPT Sat May 4 11:45:12 MSK 2013 x86_64
AMD FX(tm)-8120 Eight-Core Processor AuthenticAMD GNU/Linux" and
VFIO_PCI_VGA support. System starting with "qemu-system-x86_64: Attempt
to reset PCI bus for VGA support failed (Inappropriate ioctl for
device). VGA may not work" warning. And Windows 7 loading with the
catalyst drivers. But when I reboot the guest, the host hangs up.

On #8, #9, #10 comments I ran system with vfio-vga-reset branch.


** Attachment added: "iommu_groups.txt"
   https://bugs.launchpad.net/qemu/+bug/1175513/+attachment/3665078/+files/iommu_groups.txt

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Alex Williamson]

The above linux tree is based on 3.9.0, not -rc2, so it appears you're
not using the correct kernel.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

Sry. With x-vga=on and "Linux localhost 3.9.0+ #3 SMP PREEMPT Sun May 5
00:58:56 MSK 2013 x86_64 AMD FX(tm)-8120 Eight-Core Processor
AuthenticAMD GNU/Linux" it`s work fine.

On Sunday or Monday I will test Geforce gt210 and gt610.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

And bad news too. System hangs after guest poweroff.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

Also I tested nvidia gt210. All works fine: 3D,  reboot, poweroff,
clocks control, bios initialization.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

** Also affects: linux
   Importance: Undecided
       Status: New

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in The Linux Kernel:
  New
Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Alex Williamson]

So the result is:

HD6850 - works fully, host hang on guest poweroff
GT210 - works fully, no host issues

Is that correct?  Are you attempting to rebind the HD6850 to host
drivers after qemu is shutdown, or does the host hang happen prior to
where that would be possible?  What about killing qemu with a ^C, does
it hang the host the same way?  If you could run the host in text mode
or with a serial or net console so we can see if there are any messages
prior to the hang, that would be extremely useful.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in The Linux Kernel:
  New
Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

>Are you attempting to rebind the HD6850 to host drivers after qemu is
shutdown

No, I did not rebind HD6850 to the host system. System hangs at shutdown
guest

>HD6850 - works fully, host hang on guest poweroff

Yes.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in The Linux Kernel:
  New
Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

In text mode and on net console there are no errors, host system just
freezes after guest poweroff. This may be a hang-up the pcie?

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in The Linux Kernel:
  New
Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[commiethebeastie]

And all work after killing qemu with ^C.

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in The Linux Kernel:
  New
Status in QEMU:
  New

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Thomas Huth]

Triaging old bug tickets... can you still reproduce this issue with the
latest version of QEMU? Or could we close this ticket nowadays?

** Changed in: qemu
       Status: New => Incomplete

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in Linux:
  New
Status in QEMU:
  Incomplete

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Thomas Huth]

** No longer affects: qemu

** Project changed: linux => qemu

** Changed in: qemu
       Status: New => Incomplete

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  Incomplete

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

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[Qemu-devel] [Bug 1175513] [NEW] Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Launchpad Bug Tracker]

You have been subscribed to a public bug:

I run qemu from git with such command:

qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
-enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
-drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
-drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
-spice port=5930,disable-ticketing

Before guest (Windows 7) reboot, videocard works in 3D mode with full
frequency. But after reboot videocard works in 3D only with powersafe
frequency. Then I must reboot host for recover gpu clock control.

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: vfio-pci
-- 
Qemu 1.5-git gpu clock control doesn`t work after guest reboot
https://bugs.launchpad.net/bugs/1175513
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[Qemu-devel] [Bug 1175513] Re: Qemu 1.5-git gpu clock control doesn`t work after guest reboot

[Launchpad Bug Tracker]

[Expired for QEMU because there has been no activity for 60 days.]

** Changed in: qemu
       Status: Incomplete => Expired

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Title:
  Qemu 1.5-git gpu clock control doesn`t work after guest reboot

Status in QEMU:
  Expired

Bug description:
  I run qemu from git with such command:

  qemu-system-x86_64 -nodefaults -m 4096 -smp 8,cores=4,threads=2,sockets=1 -cpu 'kvm64' -device usb-mouse -M q35 -vga qxl -no-hpet -boot once=c,menu=on -device vfio-pci,host=02:00.0,x-vga=on \
  -enable-kvm -monitor stdio -chardev socket,path=/tmp/qga.sock,server,nowait,id=qga0 -device virtio-serial -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0 -net nic,vlan=0,model=e1000 -net tap,ifname=tap0,script=/etc/guest-ifup -usb -device intel-hda -device hda-duplex \
  -drive file='/home/<user>/qemu/win7',if=none,id=drive-virtio-disk0,cache=writeback,aio=native,format=qed,discard=on -device virtio-blk-pci,drive=drive-virtio-disk0,id=virtio-disk \
  -drive file='/dev/sr0',if=none,id=drive-ide1-0-0,media=cdrom,snapshot=off,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide1-0-0,id=ide1-0-0 \
  -spice port=5930,disable-ticketing

  Before guest (Windows 7) reboot, videocard works in 3D mode with full
  frequency. But after reboot videocard works in 3D only with powersafe
  frequency. Then I must reboot host for recover gpu clock control.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1175513/+subscriptions