Now that the restore path uses RestoreConfig structure, we add a new
parameter called "prefault" to it. This will give the user the ability
to populate the pages corresponding to the mapped regions backed by the
snapshotted memory files.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@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>
The parse_size helper function can now be consolidated into the
ByteSized FromStr implementation.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Now all parsing code makes use of the Toggle and it's FromStr support
move the helper function into the from_str() implementation.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
The integration tests and documentation make use of empty value strings
like "--net tap=" accept them but return None so that the default value
will be used as expected.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This simplifies the parsing of the option by using OptionParser along
with its automatic conversion behaviour.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Byte sizes are quantities ending in "K", "M", "G" and by implementing
this type with a FromStr implementation the values can be converted
using .parse().
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
Before porting over to OptionParser add a unit test to validate the
current memory parsing code. This showed up a bug where the "size=" was
always required. Temporarily resolve this by assigning the string a
default value which will later be replaced when the code is refactored.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This will be used to simplify and consolidate much of the parsing code
used for command line parameters.
Signed-off-by: Rob Bradford <robert.bradford@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 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>
When using "--disk" with a vhost socket and not using self spawning then
it is not necessary or helpful to specify the path.
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>
Add a new field to the DeviceConfig, allowing the VMM to allocate a name
to the VFIO devices.
By identifying a VFIO device with a unique name, we can make sure a user
can properly unplug it at any time.
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Recently, vhost_user_block gained the ability of actively polling the
queue, a feature that can be disabled with the poll_queue property.
This change adds this property to DiskConfig, so it can be used
through the "disk" argument.
For the moment, it can only be used when vhost_user=true, but this
will change once virtio-block gets the poll_queue feature too.
Fixes: #787
Signed-off-by: Sergio Lopez <slp@redhat.com>
If no socket is supplied when enabling "vhost_user=true" on "--disk"
follow the "exe" path in the /proc entry for this process and launch the
network backend (via the vmm_path field.)
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
If no socket is supplied when enabling "vhost_user=true" on "--net"
follow the "exe" path in the /proc entry for this process and launch the
network backend (via the vmm_path field.)
Currently this only supports creating a new tap interface as the network
backend also only supports that.
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
