This config option provided very little value and instead we now enable
this feature (which then lets the guest control the cache mode)
unconditionally.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add a new "host_mac" parameter to "--net" and "--net-backend" and use
this to set the MAC address on the tap interface. If no address is given
one is randomly assigned and is stored in the config.
Support for vhost-user-net self spawning was also included.
Fixes: #1177
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Rather than repeat syntax for the vhost-user-block backend in multiple
places store it in one place and reference it from the required places.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Rather than repeat syntax for the vhost-user-net backend in multiple
places store it in one place and reference it from the required places.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
It's possible to have multiple vsock devices so in preparation for
hotplug/unplug it is important to be able to have a unique identifier
for each device.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Check that if any device using vhost-user (net & disk with
vhost_user=true) or virtio-fs is enabled then check shared memory is
also enabled.
Fixes: #848
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The new 'shared' and 'hugepages' controls aim to replace the 'file'
option in MemoryConfig. This patch also updated all related integration
tests to use the new controls (instead of providing explicit paths to
"/dev/shm" or "/dev/hugepages").
Fixes: #1011
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Signed-off-by: Bo Chen <chen.bo@intel.com>
Currently unimplemented. Once implemented, this API will allow for
creating virtio-fs devices in the VM after it has booted.
Signed-off-by: Dean Sheather <dean@coder.com>
As the VmConfig::Parse() also does validation work it only make sense to
parse the VM options on the VM boot path only.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Replace the existing VmConfig::valid() check with a call into
.validate() as part of earlier config setup or boot API checks.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The goal here is to move the restore parameters into a dedicated
structure that can be reused from the entire codebase, making the
addition or removal of a parameter easier.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
currently unused, the initramfs argument is added to the cli,
and stored in vmm::config:VmConfig as an Option(InitramfsConfig(PathBuf))
Signed-off-by: Damjan Georgievski <gdamjan@gmail.com>
This commit adds new option hotplug_method to memory config.
It can set the hotplug method to "acpi" or "virtio-mem".
Signed-off-by: Hui Zhu <teawater@antfin.com>
This change introduces a new CLI option --seccomp. This allows the user
to enable/disable the seccomp filters when needed. Because the user now
has the possibility to disable the seccomp filters, and because the
Cloud-Hypervisor project wants to enforce the maximum security by
default, the seccomp filters are now applied by default.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit introduces the application of the seccomp filter to the VMM
thread. The filter is empty for now (SeccompLevel::None).
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This opens the backing file read-only, makes the pages in the mmap()
read-only and also makes the KVM mapping read-only. The file is also
mapped with MAP_PRIVATE to make the changes local to this process only.
This is functional alternative to having support for making a
virtio-pmem device readonly. Unfortunately there is no concept of
readonly virtio-pmem (or any type of NVDIMM/PMEM) in the Linux kernel so
to be able to have a block device that is appears readonly in the guest
requires significant specification and kernel changes.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This option was superseded by using "--net" with "vhost_user=true". This
option wasn't being parsed any more but was left over.
Fixes: #806
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Some of the help strings had extra newlines in them or otherwise strange
wrapping. The strings were rewrapped with the nightly version of rustfmt
that supports string formatting.
Fixes: #899
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add the ability to specify the "id" associated with a device, by adding
an extra option to the parameter --device.
This new option is not mandatory, and by default, the VMM will take care
of finding a unique identifier.
If the identifier provided by the user through this new option is not
unique, an error will be thrown and the VM won't be started.
Fixes#881
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The integration test test_memory_mergeable_on has been fairly unstable
for quite some time now. Because it can take some time for the VM to be
spawned and to be able to perform a correct measure of the PSS, this
commit simply increases the time before such measure is done.
This should return more accurate PSS results, which should help
stabilize the test.
Fixes#781
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Now that vhost_user_fs rust daemon supports virtiofs's dax mode, this adds
the two dax tests accordingly.
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Add a build-script to propagate the git commit hash to other crates at
compile time through environment variables, and display the hash along
with the '--version' option.
Fixes#729
Signed-off-by: Bo Chen <chen.bo@intel.com>
test_vfio has been failing consistently on the CI so mark it with
a "#[ignore]" and then forceably build it again but ignore the build
result.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Check the rust formatting rather than just reformatting code on the CI
agent.
Also fix a formatting error that slipped in whilst the cargo fmt check
was not working correctly.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
A previous version of this change attempted to avoid panicking by not
using .expect() when handling an error when attempting to write to the
log file. Unfortunately the macro eprintln!() that was used to replace
the .expect() also has the behaviour of panicking if stderr cannot be
used. Instead swallow the error completely as if writing to the log has
failed at logging time it is almost certainly the case that any message
about the log would also not be seen.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Since the vhost-user-blk binary will be removed and the newer
release will integrate this block backend into cloud-hypervisor
binary. The block backend code has been added num_queues cmdline
support, we need update multiple queues help info for this
block-backend in the cloud-hypervisor.
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
We measure the memory overhead that the VMM process adds to the guest VM
and compare it with a maximum acceptable limit. The test is run against
a simple VM, running 1 vCPU and 512MB of RAM. Although this is not by
any mean a comprehensive VMM overhead measurement, it will allow us to
detect when and if any PR makes our code cross an arbitrary memory
overhead threshold.
Fixes: #64
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
As this can happen during the running of the VMM we should be very
careful not to panic() as that can lead to a thread being used by the VM
disappearing.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add a socket and vhost_user parameter to this option so that the same
configuration option can be used for both virtio-block and
vhost-user-block. For now it is necessary to specify both vhost_user
and socket parameters as auto activation is not yet implemented. The wce
parameter for supporting "Write Cache Enabling" is also added to the
disk configuration.
The original command line parameter is still supported for now and will
be removed in a future release.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Add a socket and vhost_user parameter to this option so that the same
configuration option can be used for both virtio-net and vhost-user-net.
For now it is necessary to specify both vhost_user and socket parameters
as auto activation is not yet implemented. The original command line
parameter is still supported for now.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
In order to reduce the amount of times VMs are being started through
integration tests, this commit consolidates very similar tests related
to virtio-blk into a single one.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Just add a new integration test to verify that multiqueue support is
correctly supported and that we can find the right amount of queues in
the guest.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The number of queues and the size of each queue were not configurable.
In anticipation for adding multiqueue support, this commit introduces
some new parameters to let the user decide about the number of queues
and the queue size.
Note that the default values for each of these parameters are identical
to the default values used for vhost-user-blk, that is 1 for the number
of queues and 128 for the queue size.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Add explicit exclusions with --net-backend from --block-backend (and
vice-versa.) And also with "--kernel" as this is the option for "VM boot" that is never optional.
Ideally we would conflcit the backend arguments against the "vm-group"
however this does not work as it includes some arguments that have a
default value set and thus clap thinks those arguments are always
provided. Conflicting with "--kernel" is thus a reasonable compromise.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Generate the VM params until after the logging has been enabled. This
will make it possible to reuse the logging for vhost backends.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Previous commit added 'direct' support for virtio-blk to be able to
open files backing disk images with O_DIRECT, so add an integration
test for this new feature.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Previous commit added 'readonly' support for virtio-blk to be able to
configure read-only devices, so add an integration test for this new
feature.
Signed-off-by: Sergio Lopez <slp@redhat.com>
This test is a variant of test_boot_vhost_user_blk(), named
test_boot_vhost_user_blk_direct(), that instances the vhost-user-blk
daemon with 'direct=true', to test this recently introduced feature
for opening files with O_DIRECT.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Update queue number with 4 to verify if vhost-user-net device
and backend could work well with multiple queue.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
There are two new options num_queues and queue_size defined for
virtio-net, add them in test_valid_vm_config_net which is used
to validate that both the CLI and the OpenAPI will generate the
same configuration.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
Add num_queues and queue_size for virtio-net device to make them configurable,
while add the associated options in command line.
Update cloud-hypervisor.yaml with the new options for NetConfig.
Signed-off-by: Cathy Zhang <cathy.zhang@intel.com>
This specifies how much address space should be reserved for hotplugging
of RAM. This space is reserved by adding move the start of the device
area by the desired amount.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
With the latest version of virtiofsd, some changes have been made
to the socket path parameter. This needs to be updated in the cloud
hypervisor codebase, so that our CI keeps running correctly.
Fixes#611
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The cache= option from the virtiofsd backend is meant to be used
depending on how the user wants to use the guest page cache. For most
use cases, we want to bypass the guest page cache to reduce the guest
memory footprint, which is why "cache=none" should be the default.
"cache=always" is the other option when the user wants to do something
specific by using the guest page cache, but should not be the default
anymore.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
With latest kernel, virtio-fs mount command has been simplified, and
this needs to be applied everywhere in our tests and documentation.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Because we don't always reach the expected footprint improvements with
KSM, let's review the numbers. By reducing the expectations and
increasing the amount of pages to scan, this should stabilize the CI.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This patch is to check if block device is readonly
when backend set readonly=true.
The lsblk command can show the RO value in the guest.
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
The goal here is to ensure that CLI and OpenAPI both behave as closely
as possible, and also that they behave as expected.
Leveraging the reorganization of the code, we can now compare two
VmConfig structures generated from one CLI entry on one side, and from
an OpenAPI entry (JSON payload) on the other side.
Fixes#535
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This brings more modularity to the code, which will be helpful when we
will later test the CLI and OpenAPI generate the same VmConfig output.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This brings more modularity to the code, which will be helpful when we
will later test the CLI and OpenAPI generate the same VmConfig output.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This brings more modularity to the code, which will be helpful when we
will later test the CLI and OpenAPI generate the same VmConfig output.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
On our CI the /tmp filesystem is mounted as tmpfs and this is the
location where the test disk images are located. When the CI worker
nodes have less memory and fewer CPUs the tmpfs fills up as the tests
run in parallel.
Introduce a mechanism to reduce the parallelism of the tests based on
starvation of the tmpfs disk availability.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
By default, and in order to avoid falling into the legacy CLI usage, the
CPU argument should at least include "boot=" to define the number of
CPUs.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
In order to validate that multiple devices can be passed through and
they are still fully functional, this patch extends the existing VFIO
test to pass a second virtio-net device, and verifies that both
interfaces are functional by ssh'ing into each network interface.
Fixes#503
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
The easiest way to detect if the kernel is willing to accept hotplug
vCPUs is to check the dmesg output.
Switch the test to bionic as the Clear Cloud image lacks "dmesg."
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
