[virt-tools-list] virtio-serial port name on Windows

Trapp, Michael michael.trapp at sap.com
Tue Feb 19 15:09:57 UTC 2019


I'm looking for further information about virtio-serial port attributes in the VM.

On Linux there is also a symlink
/dev/virtio-ports/org.github.vhostmd.1 -> ../vport2p2
to the device which also provides the name as additional information about the host side of the port.

On Windows the situation seems to be a bit different.

The device manager shows a hidden device vport2p2 with the attribute
      'Bus reported device description: vport2p2'
but no available device attribute contains the device name from the qemu configuration.

I had a look into the vioser-test code of the KVM/QEMU Windows guest drivers
(https://github.com/virtio-win/kvm-guest-drivers-windows) and the functions called are
        which is
        typedef struct _SP_DEVICE_INTERFACE_DETAIL_DATA_W {
            DWORD cbSize; // The size, in bytes, of the SP_DEVICE_INTERFACE_DETAIL_DATA structure
            WCHAR DevicePath[ANYSIZE_ARRAY]; // NULL-terminated string that contains the device interface path.

But this provides only a DevicePath which also does not contain the name from the qemu config.

Is there any way to read the virtio-serial port name on Windows?


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