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NAMEvmm.ko —
bhyve virtual machine monitor
SYNOPSISTo load the driver as a module at boot, add this line to loader.conf(5):
The module can also be loaded manually with kldload(8): kldload vmm DESCRIPTIONvmm.ko provides the kernel portion of the
bhyve(4)
hypervisor.
An Intel CPU with VT-x/EPT or AMD CPU with SVM support is required. PCI device passthrough to a virtual machine requires hardware with VT-d support. PCI PASSTHROUGHWhen the hardware supports VT-d, andvmm.ko has been
loaded at boot time, PCI devices can be reserved for use by the hypervisor.
Entries consisting of the PCI
bus/slot/function
are added to the pptdevs
loader.conf(5)
variable. Additional entries are separated by spaces. Host PCI devices that
match an entry will be assigned to the hypervisor and will not be probed by
FreeBSD device drivers. See the
EXAMPLES section below for sample usage.
A large number of PCI device entries may require a string longer than the 128-character limit of loader.conf(5) variables. The pptdevs2 and pptdevs3 variables can be used for additional entries. EXAMPLESReserve three PCI devices for use by the hypervisor: bus 10 slot 0 function 0, bus 6 slot 5 function 0, and bus 6 slot 5 function 1.pptdevs="10/0/0 6/5/0 6/5/1" SEE ALSObhyve(4), loader.conf(5), bhyve(8), bhyveload(8), kldload(8)HISTORYvmm.ko first appeared in FreeBSD
10.0.
AUTHORSNeel Natu ⟨neel@freebsd.org⟩Peter Grehan ⟨grehan@freebsd.org⟩
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