Add a heuristic to ensure the amount of memory allocated to the
hypervisor is bigger than the size of the image.
This catches simple configuration issues where `default_memory=` is set
to a smaller value than the size of either the `image=` or `initrd=`
files.
If the configured image type is `initrd`, fail but only warn in the
logs for `image` as although it seems a highly unlikely scenario, it is
permitted.
Update tests to ensure that created resources have `>0` bytes.
Fixes#636.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
The `TestMinimalRuntimeConfig` should not be using the real
resource files that might be installed on a system so make temporary
files instead to better control the test.
Split out `TestMinimalRuntimeConfigWithVsock` to reduce cyclomatic
complexity (along with dropping the config file delete at the end - not
required as the entire test-specific directory gets auto-deleted).
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
We need this configuration due to a limitation in seabios
firmware in handling hotplug for PCI devices with large BARS.
Long term, this needs to be fixed in the firmware.
Fixes#594
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Add `use_vsock` option to enable or disable the use of vsocks
for communication between host and guest.
Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
Signed-off-by: Julio Montes <julio.montes@intel.com>
Add enable_template option to the config file.
When it is set, enable the vm template factory.
cache factory cannot be used by kata cli directly because
it requires a running daemon to maintain the cache VMs.
`kata-runtime factory init` would initialize the vm factory and
`kata-runtime factory destroy` would destroy the vm factory.
When configured, a vm factory is loaded before creating new sandboxes.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
If you build and install the runtime, the config file will contain an
entry for both an `initrd=` and an `image=` entry.
The Developer Guide explains that the user must disable one but it is
easy to forget.
Modified the runtime to fail if both an image and an initrd are
specified. Also added a new test for this scenario.
Fixes#318.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
There is a relation between the maximum number of vCPUs and the
memory footprint, if QEMU maxcpus option and kernel nr_cpus
cmdline argument are big, then memory footprint is big, this
issue only occurs if CPU hotplug support is enabled in the kernel,
might be because of kernel needs to allocate resources to watch all
sockets waiting for a CPU to be connected (ACPI event).
For example
```
+---------------+-------------------------+
| | Memory Footprint (KB) |
+---------------+-------------------------+
| NR_CPUS=240 | 186501 |
+---------------+-------------------------+
| NR_CPUS=8 | 110684 |
+---------------+-------------------------+
```
In order to do not affect CPU hotplug and allow to users to have containers
with the same number of physical CPUs, this patch tries to mitigate the
big memory footprint by using the actual number of physical CPUs as the
maximum number of vCPUs for each container if `default_maxvcpus` is <= 0 in
the runtime configuration file, otherwise `default_maxvcpus` is used as the
maximum number of vCPUs.
Before this patch a container with 256MB of RAM
```
total used free shared buff/cache available
Mem: 195M 40M 113M 26M 41M 112M
Swap: 0B 0B 0B
```
With this patch
```
total used free shared buff/cache available
Mem: 236M 11M 188M 26M 36M 186M
Swap: 0B 0B 0B
```
fixes#295
Signed-off-by: Julio Montes <julio.montes@intel.com>
Many cli and arch files were using the 'older style' fairly full
Apache license text. The project standard is the shorter SPDX style.
Convert them over.
Fixes: #225
Signed-off-by: Graham whaley <graham.whaley@intel.com>
Add option to configure if IO needs to be in a separate IO thread.
Add tests to verify option is correctly parsed. The default value
is set to false for now.
This should be considered to be enabled by default in the future.
Fixes#132
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Add `initrd=[path]` option to configuration.toml and use it to set
the HypervisorConfig.InitrdPath option.
The default value of hypervisor image option is removed since we want
to allow it to be unset. For the same reason, there is no default value
for hypervisor initrd option either.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
