Add sections describing usage of the virtio-console device and about block I/O tuning. Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com> --- docs/drvbhyve.rst | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/docs/drvbhyve.rst b/docs/drvbhyve.rst index e9eceb8740..79418537df 100644 --- a/docs/drvbhyve.rst +++ b/docs/drvbhyve.rst @@ -819,6 +819,44 @@ Example: Every NUMA domain must have `memory` and `cpus` specified. Bhyve allows configuring up to 8 NUMA domains. +Virtio-console device +~~~~~~~~~~~~~~~~~~~~~ + +:since:`Since 12.4.0`, it is possible to use the virtio console device. +Example:: + + <devices> + <channel type='unix'> + <source mode='bind' path='/var/run/libvirt/bhyve/bhyve.agent'/> + <target type='virtio' name='org.qemu.guest_agent.0'/> + <address type='virtio-serial' controller='0' bus='0' port='1'/> + </channel> + </devices> + +Bhyve supports up to 16 ports per console. + +Block I/O Tuning +~~~~~~~~~~~~~~~~ +:since:`Since 12.3.0`, it is possible to tune domain I/O. +This works on top of the +`rctl(4) <https://man.freebsd.org/cgi/man.cgi?query=rctl&sektion=4>`__ +framework. +Sample configuration:: + + <blkiotune> + <device> + <path>*</path> + <read_iops_sec>20000</read_iops_sec> + <write_iops_sec>20000</write_iops_sec> + <read_bytes_sec>10000</read_bytes_sec> + <write_bytes_sec>10000</write_bytes_sec> + </device> + </blkiotune> + +The ``*`` path here means that the limits are applied to the domain +as a whole. Currently, it is not possible to apply limits to the +individual devices of the domain. + Guest-specific considerations ----------------------------- -- 2.52.0