[vfio-users] Audio sync issues Windows 10
Eddie Yen
missile0407 at gmail.com
Tue Dec 20 05:46:05 UTC 2016
Maybe it's a silly question but,
Have you try add MSI-X support by modify registry on Windows 10 VM?
2016-12-20 13:06 GMT+08:00 Brandon Ganem <brandonganem at gmail.com>:
> I'm not entirely sure what this tells me, but IRQ usage drops
> significantly (particularly on "LOC") when not playing back a video. Maybe
> somebody smarter than I am has a though.
> The poorly drawn yellow line is roughly when i stopped any video play back
> in this graph. Time scale is a 15 minute window from collectd's irq monitor.
> [image: Inline image 1]
>
> On Sun, Dec 18, 2016 at 10:33 PM, Brandon Ganem <brandonganem at gmail.com>
> wrote:
>
>> I'm passing through USB, but only a mic is on that for audio. 00:1b.0
>> (intel built in audio) and nvidia HDMI audio both have the issue.
>>
>> On Sat, Dec 17, 2016 at 3:58 PM, Zachary Boley <zboley00 at gmail.com>
>> wrote:
>>
>>> Doesn't look like it but are you passing a USB controller in for it?
>>> Can't really see how you're using audio
>>>
>>> On Dec 16, 2016 2:39 PM, "Brandon Ganem" <brandonganem at gmail.com> wrote:
>>>
>>>> Hi all,
>>>> I've got a Windows 10 VM on top of arch linux. It appears that after
>>>> some period of time my audio / video loses sync for long running videos
>>>> (youtube for example). Switching audio devices in "sound options" in
>>>> windows causes the video to sync back up to the audio.
>>>>
>>>> The audio does not appear to be distorted, it's almost as if the video
>>>> slows down by a frame or two and over time that's enough to drop the sync.
>>>>
>>>>
>>>>
>>>> Here's my XML:
>>>> <domain type='kvm' xmlns:qemu='http://libvirt.org
>>>> /schemas/domain/qemu/1.0'>
>>>> <name>win10_gaming_1</name>
>>>> <uuid>01bd2ed1-b465-4eba-b6e4-47c6ac8171c6</uuid>
>>>> <memory unit='KiB'>16777216</memory>
>>>> <currentMemory unit='KiB'>16777216</currentMemory>
>>>> <vcpu placement='static'>12</vcpu>
>>>> <iothreads>2</iothreads>
>>>> <iothreadids>
>>>> <iothread id='1'/>
>>>> <iothread id='2'/>
>>>> </iothreadids>
>>>> <cputune>
>>>> <vcpupin vcpu='0' cpuset='2'/>
>>>> <vcpupin vcpu='1' cpuset='3'/>
>>>> <vcpupin vcpu='2' cpuset='4'/>
>>>> <vcpupin vcpu='3' cpuset='5'/>
>>>> <vcpupin vcpu='4' cpuset='6'/>
>>>> <vcpupin vcpu='5' cpuset='7'/>
>>>> <vcpupin vcpu='6' cpuset='8'/>
>>>> <vcpupin vcpu='7' cpuset='9'/>
>>>> <vcpupin vcpu='8' cpuset='12'/>
>>>> <vcpupin vcpu='9' cpuset='13'/>
>>>> <vcpupin vcpu='10' cpuset='14'/>
>>>> <vcpupin vcpu='11' cpuset='15'/>
>>>> <emulatorpin cpuset='0-1'/>
>>>> <iothreadpin iothread='1' cpuset='0'/>
>>>> <iothreadpin iothread='2' cpuset='1'/>
>>>> <iothreadsched iothreads='2' scheduler='batch'/>
>>>> </cputune>
>>>> <os>
>>>> <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
>>>> <loader readonly='yes' type='pflash'>/usr/share/edk2.
>>>> git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
>>>> <nvram template='/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd
>>>> '>/var/lib/libvirt/qemu/nvram/win10_gaming_1_VARS.fd</nvram>
>>>> <boot dev='hd'/>
>>>> </os>
>>>> <features>
>>>> <acpi/>
>>>> <hyperv>
>>>> <relaxed state='off'/>
>>>> <vapic state='off'/>
>>>> <spinlocks state='off'/>
>>>> </hyperv>
>>>> <kvm>
>>>> <hidden state='on'/>
>>>> </kvm>
>>>> </features>
>>>> <cpu mode='host-passthrough'>
>>>> <topology sockets='1' cores='6' threads='2'/>
>>>> </cpu>
>>>> <clock offset='localtime'>
>>>> <timer name='hypervclock' present='no'/>
>>>> </clock>
>>>> <on_poweroff>destroy</on_poweroff>
>>>> <on_reboot>restart</on_reboot>
>>>> <on_crash>destroy</on_crash>
>>>> <devices>
>>>> <emulator>/usr/sbin/qemu-system-x86_64</emulator>
>>>> <disk type='file' device='disk'>
>>>> <driver name='qemu' type='raw' cache='writethrough'/>
>>>> <source file='/flash/win_gaming_1.img'/>
>>>> <target dev='vda' bus='virtio'/>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x09'
>>>> function='0x0'/>
>>>> </disk>
>>>> <disk type='file' device='disk'>
>>>> <driver name='qemu' type='raw' cache='writethrough'/>
>>>> <source file='/vmstore/steam/gaming_1/steam_library.img'/>
>>>> <target dev='vdb' bus='virtio'/>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a'
>>>> function='0x0'/>
>>>> </disk>
>>>> <controller type='pci' index='0' model='pci-root'/>
>>>> <controller type='virtio-serial' index='0'>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
>>>> function='0x0'/>
>>>> </controller>
>>>> <controller type='usb' index='0' model='piix3-uhci'>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
>>>> function='0x2'/>
>>>> </controller>
>>>> <interface type='bridge'>
>>>> <mac address='52:54:00:a0:41:92'/>
>>>> <source bridge='br0'/>
>>>> <model type='virtio'/>
>>>> <rom bar='off'/>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
>>>> function='0x0'/>
>>>> </interface>
>>>> <input type='mouse' bus='ps2'/>
>>>> <input type='keyboard' bus='ps2'/>
>>>> <memballoon model='virtio'>
>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x07'
>>>> function='0x0'/>
>>>> </memballoon>
>>>> </devices>
>>>> <qemu:commandline>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='ioh3420,bus=pci.0,addr=
>>>> 1c.0,multifunction=on,port=1,chassis=1,id=root.1'/>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='vfio-pci,host=02:00.0,b
>>>> us=root.1,addr=00.0,multifunction=on,x-vga=on'/>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='vfio-pci,host=02:00.1,b
>>>> us=root.1,addr=00.1,multifunction=on'/>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='vfio-pci,host=00:14.0,b
>>>> us=root.1,addr=00.2,multifunction=on'/>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='vfio-pci,host=00:1a.0,b
>>>> us=root.1,addr=00.3,multifunction=on'/>
>>>> <qemu:arg value='-device'/>
>>>> <qemu:arg value='vfio-pci,host=00:1b.0,b
>>>> us=root.1,addr=00.4,multifunction=on'/>
>>>> </qemu:commandline>
>>>> </domain>
>>>>
>>>>
>>>> LSPCI:
>>>> 02:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce
>>>> GTX 960] (rev a1) (prog-if 00 [VGA controller])
>>>> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
>>>> Physical Slot: 4
>>>> Flags: bus master, fast devsel, latency 0, IRQ 26, NUMA node 0
>>>> Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
>>>> Memory at c0000000 (64-bit, prefetchable) [size=256M]
>>>> Memory at d0000000 (64-bit, prefetchable) [size=32M]
>>>> I/O ports at e000 [size=128]
>>>> Expansion ROM at fb000000 [disabled] [size=512K]
>>>> Capabilities: [60] Power Management version 3
>>>> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>> Capabilities: [78] Express Legacy Endpoint, MSI 00
>>>> Capabilities: [100] Virtual Channel
>>>> Capabilities: [258] L1 PM Substates
>>>> Capabilities: [128] Power Budgeting <?>
>>>> Capabilities: [420] Advanced Error Reporting
>>>> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1
>>>> Len=024 <?>
>>>> Capabilities: [900] #19
>>>> Kernel driver in use: vfio-pci
>>>> Kernel modules: nouveau
>>>>
>>>> 02:00.1 Audio device: NVIDIA Corporation Device 0fba (rev a1)
>>>> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
>>>> Physical Slot: 4
>>>> Flags: bus master, fast devsel, latency 0, IRQ 51, NUMA node 0
>>>> Memory at fb080000 (32-bit, non-prefetchable) [size=16K]
>>>> Capabilities: [60] Power Management version 3
>>>> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>> Capabilities: [78] Express Endpoint, MSI 00
>>>> Kernel driver in use: vfio-pci
>>>> Kernel modules: snd_hda_intel
>>>>
>>>> 00:1b.0 Audio device: Intel Corporation C610/X99 series chipset HD
>>>> Audio Controller (rev 05)
>>>> Subsystem: ASRock Incorporation Device 1151
>>>> Flags: bus master, fast devsel, latency 0, IRQ 22, NUMA node 0
>>>> Memory at fb330000 (64-bit, non-prefetchable) [size=16K]
>>>> Capabilities: [50] Power Management version 2
>>>> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>> Capabilities: [70] Express Root Complex Integrated Endpoint,
>>>> MSI 00
>>>> Capabilities: [100] Virtual Channel
>>>> Kernel driver in use: vfio-pci
>>>> Kernel modules: snd_hda_intel
>>>>
>>>> 00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB
>>>> Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
>>>> Subsystem: ASRock Incorporation Device 8d26
>>>> Flags: medium devsel, IRQ 18, NUMA node 0
>>>> Memory at fb337000 (32-bit, non-prefetchable) [size=1K]
>>>> Capabilities: [50] Power Management version 2
>>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
>>>> Capabilities: [98] PCI Advanced Features
>>>> Kernel driver in use: vfio-pci
>>>> Kernel modules: ehci_pci
>>>>
>>>> 00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB
>>>> Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
>>>> Subsystem: ASRock Incorporation Device 8d2d
>>>> Flags: bus master, medium devsel, latency 0, IRQ 18, NUMA node 0
>>>> Memory at fb338000 (32-bit, non-prefetchable) [size=1K]
>>>> Capabilities: [50] Power Management version 2
>>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
>>>> Capabilities: [98] PCI Advanced Features
>>>> Kernel driver in use: vfio-pci
>>>> Kernel modules: ehci_pci
>>>>
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>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>
>>>>
>>
>
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