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bhyve PCI Passthrough
% cbsd bhyve-ppt
CBSD allows you to configure bhyve arguments to throw devices into the guest, if your hardware supports it
Attention! Read the information on the page FreeBSD Wiki: bhyve pci_passthru
In order to mark the device as passthrough, you must put the parameter in /boot/loader.conf as described in the wiki page, for example:
If you need to specify more than one device:
pptdevs="2/0/0 1/2/6 4/9/0"
Please note that when using pptdevs, vmm the module must be initialized on /boot/loader.conf stage to pick up these records.
If you init/load vmm after kernel loading, for example via kldload, then pptdevs will not work.
Next, after booting up the system, make sure that CBSD sees the marked devices. With the command 'cbsd bhyve-ppt mode=list' you should see your devices:
% cbsd bhyve-ppt mode=list 5/1/0 : DGE-528T Gigabit Ethernet Adapter : D-Link System Inc : - 0/31/3 : 7 Series/C216 Chipset Family SMBus Controller : Intel Corporation : -
Now, by using the ppt device ( 5/1/0 or 0/31/3 in this example) you can attach or detach this device to a specific virtual machine:
cbsd bhyve-ppt mode=attach jname=vmname
cbsd bhyve-ppt mode=detach jname=vmname