Commit Graph

21 Commits

Author SHA1 Message Date
Snir Sheriber
a48d13f68d runtime: allow annotation configuration to use_legacy_serial
and update the docs and test

Signed-off-by: Snir Sheriber <ssheribe@redhat.com>
2022-05-30 16:02:29 +02:00
Julio Montes
1f29478b09 runtime: suppport split firmware
firmware can be split into FIRMWARE_VARS.fd (UEFI variables as
configuration) and FIRMWARE_CODE.fd (UEFI program image). UEFI
variables can be customized per each user while UEFI code is kept same.

fixes #3583

Signed-off-by: Julio Montes <julio.montes@intel.com>
2022-02-01 13:40:19 -06:00
Julio Montes
49223e67af runtime: remove enable_swap option
`enable_swap` option was added long time ago to add
`-realtime mlock=off` to the QEMU's command line.
Kata now supports QEMU 6, `-realtime` option has been deprecated and
`mlock=on` is causing unexpected behaviors in kata.
This patch removes support for `enable_swap`, `-realtime` and `mlock=`
since they are causing bugs in kata.

Signed-off-by: Julio Montes <julio.montes@intel.com>
2022-01-18 11:12:29 -06:00
David Gibson
57ab408576 runtime: Introduce "vfio_mode" config variable and annotation
In order to support DPDK workloads, we need to change the way VFIO devices
will be handled in Kata containers.  However, the current method, although
it is not remotely OCI compliant has real uses.  Therefore, introduce a new
runtime configuration field "vfio_mode" to control how VFIO devices will be
presented to the container.

We also add a new sandbox annotation -
io.katacontainers.config.runtime.vfio_mode - to override this on a
per-sandbox basis.

For now, the only allowed value is "guest-kernel" which refers to the
current behaviour where VFIO devices added to the container will be bound
to whatever driver in the VM kernel claims them.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-10-25 12:29:29 +11:00
James O. D. Hunt
321be0f794 tracing: Remove trace mode and trace type
Remove the `trace_mode` and `trace_type` agent tracing options as
decided in the Architecture Committee meeting.

See:

- https://github.com/kata-containers/kata-containers/pull/2062

Fixes: #2352.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
2021-10-15 10:09:38 +01:00
Feng Wang
1cfe59304d runtime: Run QEMU using a non-root user/group
A random generated user/group is used to start QEMU VMM process.
The /dev/kvm group owner is also added to the QEMU process to grant it access.

Fixes #2444

Signed-off-by: Feng Wang <feng.wang@databricks.com>
2021-09-17 11:28:44 -07:00
Hui Zhu
cb6b7667cd runtime: Add option "enable_guest_swap" to config hypervisor.qemu
This commit add option "enable_guest_swap" to config hypervisor.qemu.
It will enable swap in the guest. Default false.
When enable_guest_swap is enabled, insert a raw file to the guest as the
swap device if the swappiness of a container (set by annotation
"io.katacontainers.container.resource.swappiness") is bigger than 0.
The size of the swap device should be
swap_in_bytes (set by annotation
"io.katacontainers.container.resource.swap_in_bytes") - memory_limit_in_bytes.
If swap_in_bytes is not set, the size should be memory_limit_in_bytes.
If swap_in_bytes and memory_limit_in_bytes is not set, the size should be
default_memory.

Fixes: #2201

Signed-off-by: Hui Zhu <teawater@antfin.com>
2021-07-19 23:22:06 +08:00
Hui Zhu
a733f537e5 runtime: newContainer: Handle the annotations of SWAP
This commit add code to handle the annotations
"io.katacontainers.container.resource.swappiness" and
"io.katacontainers.container.resource.swap_in_bytes".
It will set the value of "io.katacontainers.resource.swappiness" to
c.config.Resources.Memory.Swappiness and set the value of
"io.katacontainers.resource.swap_in_bytes" to
c.config.Resources.Memory.Swap.

Fixes: #2201

Signed-off-by: Hui Zhu <teawater@antfin.com>
2021-07-19 23:20:46 +08:00
James O. D. Hunt
0f26f1cd6f annotations: Add missing hypervisor control annotation
Add missing annotation definitions for a hypervisor control binary:

- `io.katacontainers.config.hypervisor.ctlpath`
- `io.katacontainers.config.hypervisor.hypervisorctl_hash`

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
2020-11-05 12:12:58 +00:00
Christophe de Dinechin
7c6aede5d4 config: Whitelist hypervisor annotations by name
Add a field "enable_annotations" to the runtime configuration that can
be used to whitelist annotations using a list of regular expressions,
which are used to match any part of the base annotation name, i.e. the
part after "io.katacontainers.config.hypervisor."

For example, the following configuraiton will match "virtio_fs_daemon",
"initrd" and "jailer_path", but not "path" nor "firmware":

  enable_annotations = [ "virtio.*", "initrd", "_path" ]

The default is an empty list of enabled annotations, which disables
annotations entirely.

If an anontation is rejected, the message is something like:

  annotation io.katacontainers.config.hypervisor.virtio_fs_daemon is not enabled

Fixes: #901

Suggested-by: Peng Tao <tao.peng@linux.alibaba.com>
Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>
2020-10-14 16:10:12 +02:00
Christophe de Dinechin
11b9c90cd8 annotations: Fix typo in comment
A comment talking about runtime related annotations describes them as
being related to the agent. A similar comment for the agent
annotations is missing.

Fixes: #901

Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>
2020-10-14 16:10:12 +02:00
Christophe de Dinechin
b21a829c61 config: Protect ctlpath from annotation attack
This also adds annotation for ctlpath which were not present
before. It's better to implement the code consistenly right now to make
sure that we don't end up with a leaky implementation tacked on later.

Fixes: #901

Signed-off-by: Christophe de Dinechin <dinechin@redhat.com>
2020-10-14 16:10:12 +02:00
Julio Montes
6df165c19d runtime: add support for SGX
Support the `sgx.intel.com/epc` annotation that is defined by the intel
k8s plugin. This annotation enables SGX. Hardware-based isolation and
memory encryption.

For example, use `sgx.intel.com/epc = "64Mi"` to create a container
with 1 EPC section with pre-allocated memory.

At the time of writing this patch, SGX patches have not landed on the
linux kernel project.
The following github kernel fork contains all the SGX patches for the
host and guest: https://github.com/intel/kvm-sgx

fixes #483

Signed-off-by: Julio Montes <julio.montes@intel.com>
2020-10-01 08:24:29 -05:00
bin liu
febdf8f68c runtime: add debug console service
Add `kata-runtime exec` to enter guest OS
through shell started by agent

Fixes: #245

Signed-off-by: bin liu <bin@hyper.sh>
2020-09-27 10:57:17 +08:00
Qi Feng Huo
f5598a1bc2 Subject: [PATCH] qemu: add annotations for iommu_platform
for s390x virtio devices

Add iommu_platform annotations for qemu for ccw,
other supported devices can also make use of that.

  Fixes #603

Signed-off-by: Qi Feng Huo <huoqif@cn.ibm.com>
2020-08-28 11:25:14 +08:00
Penny Zheng
1099a28830 kata 2.0: delete use_vsock option and proxy abstraction
With kata containers moving to 2.0, (hybrid-)vsock will be the only
way to directly communicate between host and agent.
And kata-proxy as additional component to handle the multiplexing on
serial port is also no longer needed.
Cleaning up related unit tests, and also add another mock socket type
`MockHybridVSock` to deal with ttrpc-based hybrid-vsock mock server.

Fixes: #389

Signed-off-by: Penny Zheng penny.zheng@arm.com
2020-07-16 04:20:02 +00:00
bin liu
bbf8517050 runtime: add pprof interface for shim
Add new http interfaces to support pprof:

- /sandboxes
- /debug/vars
- /debug/pprof/
- /debug/pprof/cmdline
- /debug/pprof/profile
- /debug/pprof/symbol
- /debug/pprof/trace

Fixes: #397

Signed-off-by: bin liu <bin@hyper.sh>
2020-07-10 13:05:25 +08:00
Jia He
115dfa19cd annotations: add cpu_features
[ port from runtime commit f03c17d107999fd68da87d98ab3e242ac7843051 ]

So that users can use annotations to set it.

Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Peng Tao <bergwolf@hyper.sh>
2020-06-29 20:19:21 -07:00
Penny Zheng
c2645f5d5a rate-limiter: add rate limiter configuration/annotation on VM level
Add configuration/annotation about network I/O throttling on VM level.
rx_rate_limiter_max_rate is dedicated to control network inbound
bandwidth per pod.
tx_rate_limiter_max_rate is dedicated to control network outbound
bandwidth per pod.

Fixes: #250

Signed-off-by: Penny Zheng <penny.zheng@arm.com>
2020-06-24 06:14:04 +00:00
Adrian Moreno
b97287090b qemu: enable iommu on q35
Add a configuration option and a Pod Annotation

If activated:
- Add kernel parameters to load iommu
- Add irqchip=split in the kvm options
- Add a vIOMMU to the VM

Fixes #2694
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
2020-06-22 16:37:20 +02:00
Peng Tao
a02a8bda66 runtime: move all code to src/runtime
To prepare for merging into kata-containers repository.

Signed-off-by: Peng Tao <bergwolf@hyper.sh>
2020-04-27 19:39:25 -07:00