On Linux, if you want to pass through a PCI(e) device to a VM, one of the first things to do is to check the IOMMU groups. If the device is not properly isolated, one can apply some hacky ACS patch to "fix" that. The Internet is full of information about all this.
In the FreeBSD world, on the...
I want to pass my WLAN card to bhyve VM. Host is FreeBSD 13.0-RC5, tried on FreeBSD, OpenBSD and Linux guests.
WLAN card is M.2 device and works on host. Passing another PCIe card (PCIe x4 LAN) to guests works.
WLAN card on host:
Apr 7 12:11:55 hostname kernel: ath0: <Atheros AR946x/AR948x>...
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