VirtIO Block driver
To compile this driver into the kernel, place the following lines in your kernel
Alternatively, to load the driver as a module at boot time, place the following
device driver provides support
for VirtIO block devices.
Tunables can be set at the
prompt before booting the kernel or stored in
These tunables disable retrieving the device identification string from the
hypervisor either globally or per-device. The default value is 0.
These tunables determine the write cache mode globally or per-device. The
mode can changed only if the ConfigWCE feature is negotiated. Set to 0 for
writethrough mode, 1 for writeback mode, and -1 to leave it as-is. The
default value is to leave as-is.
The following variables are available as
The write cache mode of the device can be either writethrough (0) or
writeback (1). If the ConfigWCE feature is negotiated, the write cache
mode can be toggled between writethrough and writeback.
driver was written by
It first appeared in FreeBSD 9.0