Hi,
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
SetupDiGetClassDevs()
SetupDiEnumDeviceInterfaces()
SetupDiGetDeviceInterfaceDetail()
--> provides PSP_DEVICE_INTERFACE_DETAIL_DATA
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.
} SP_DEVICE_INTERFACE_DETAIL_DATA_W,
*PSP_DEVICE_INTERFACE_DETAIL_DATA_W;
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?
Michael
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