Hi,

> Agreed.  If we can know the virtual device for KVM in a better way
> (e.g. any specific PCI SSID or such), we can narrow the condition more
> safely.

PCI Subsystem ID 1af4:1100 is qemu/kvm (not only Intel HDA, most other
emulated pci devices have it too). Complete entry:

00:04.0 0403: 8086:2668 (rev 01)
        Subsystem: 1af4:1100
        Physical Slot: 4
        Flags: bus master, fast devsel, latency 0, IRQ 11
        Memory at e2030000 (32-bit, non-prefetchable) [size=16K]
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel

cheers,
  Gerd

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