In the context of vhost-user, we need the guest RAM to be backed by
a file in order to be accessed by an external process. This patch
adds the new flag "file=" to the "--memory" option so that we can
specify from the command line if the memory needs to be backed, and
by which specific file.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The user can now share some files and directories with the guest by
providing the corresponding vhost-user socket. The virtiofsd daemon
should be started by the user before to start the VM.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Based on the newly added code, we expect the split irqchip to be used.
This means we should not see any "timer" or "cascade" components
attached to the IOAPIC since our userspace IOAPIC does not advertise
those.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
KVM exposes CPUID 0BH when host supports that, but the APIC ID that KVM
provides is the host APIC ID so we need replace that with ours.
Without this Linux guest reports something like:
[Firmware Bug]: CPU1: APIC id mismatch. Firmware: 1 APIC: 21
Fixes#42
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Download and build a Linux kernel and use the vmlinux produced as the
kernel used with a direct boot kernel test.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
With slide variations in the kernel the memory size checks can fail so
round down the testing numbers to the nearest multiple of 1000 to make
the tests more stable.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Switch the Clear Linux version to a newer release and cache that in an
azure bucket in the same region to improve the CI speed.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Launch the test binary by command rather than using using the vmm layer.
This makes it easier to manage the running VM as you can explicitly kill
it.
Also switch to using credibility for the tests which catches assertions
and continues with subsequent commands and reports the issues at the
end. This means it is possible to cleanup even on failed test runs.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add basic integration testing of the hypervisor using a cloud-init to
configure the VM at boot and SSH to control it at runtime.
Initial test just boots the VM up checks some basic resources and
reboots. With a second test that calls into the first to check that
subsequent tests work correctly.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The command line parsing of the user input was not properly
abstracted from the vmm specific code. In the case of --net,
the parsing was done when the device manager was adding devices.
In order to fix this confusion, this patch introduces a new
module "config" dedicated to the translation of a VmParams
structure into a VmCfg structure. The former is built based
on the input provided by the user, while the latter is the
result of the parsing of every options.
VmCfg is meant to be consumed by the vmm specific code, and
it is also a fully public structure so that it can directly
be built from a testing environment.
Fixes#31
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Store the list of disks in a Vec<PathBuf> and then iterate over that
when creating the block devices.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Recent refactoring of the flags parsing broke the --net behavior where
the network tap interface should be created by the VMM if the user does
not provide any argument to this option.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
CONTRIBUTING.md: removed a space to suport markdown linking
Refactored cmdline and net_params arguments to use option adapters
to achieve the same parsed results in a "more rusty" way.
Deleted a space in the contributing markdown to link properly.
Signed-off-by: Logan Saso <logansaso+tech@gmail.com>
If no commandline is supplied replace with an empty string. No kernel
commandline is needed when using the firmware to boot.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
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>
