Until now, the only way to get some networking with cloud-hypervisor
was to let the user create a TAP interface first, and then to provide
the name of this interface to the VMM.
This patch extend the previous behavior by adding the support for the
creation of a brand new TAP interface from the VMM itself. In case no
interface name is provided through "tap=<if_name>", we will assume
the user wants the VMM to create and set the interface on its behalf,
no matter the value of other parameters (ip, mask, and mac).
In this same scenario, because the user expects the VMM to create the
TAP interface, he can also provide the associated IP address and subnet
mask associated with it. In case those values are not provided, some
default ones will be picked.
No matter the value of "tap", the MAC address will always be set, and
if no value is provided, the VMM will come up with a default value for
it.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Most of the code is taken from crosvm(bbd24c5) but is modified to
be adapted to the current VirtioDevice definition and epoll
implementation.
A new command option '--rng' is provided and it gives one the option
to override the entropy source which is /dev/urandom by default.
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
This patch expand the device registration to add a new virtio-net
device in case the user provide the appropriate flag --net from the
command line.
If the flag is provided, the code will parse the TAP interface name
and the expected MAC address from the command line. The VM will be
connected to the provided TAP interface, and it will communicate the
MAC address to the virtio-net driver.
If the flag is not provided, the VM will not register any virtio-net
device, therefore it will not have any connectivity with the host.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
In order to let the user choose which kernel parameters to append, the
kernel boot parameters can be now specified from the command line.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Based on the new virtio-blk support, this commit allows any user to
specify a --disk option in order to select the rootfs it wants to
use for the VM.
For now it assumes the partition 3 /dev/vd3 is the one where we can
find the rootfs.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Based on the Firecracker devices crate from commit 9cdb5b2.
It is a trimmed down version compared to the Firecracker one, to remove
a bunch of pulled dependencies (logger, metrics, rate limiter, etc...).
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
