In linux 5.14 and hopefully some backports, core scheduling allows processes to
be co scheduled within the same domain on SMT enabled systems.
Containerd impl sets the core sched domain when launching a shim. This
allows a clean way for each shim(container/pod) to be in its own domain and any
additional containers, (v2 pods) be be launched with the same domain as well as
any exec'd process added to the container.
kernel docs: https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/core-scheduling.html
For Kata specifically, we will look for SCHED_CORE environment variable
to be set to indicate we shuold create a new schedule core domain.
This is equivalent to the containerd shim's PR: e48bbe8394Fixes: #4309
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
Signed-off-by: Michael Crosby <michael@thepasture.io>
Based on @fidencio's opoinon,
On Arm: static build virtiofsd using musl lib;
on ppc64 & s390: static build virtiofsd using gnu lib;
Fixes: #4258
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
The current implementation of walking the
disks to match with the requested volume path
in agent doesn't work because the volume path
provided by the shim to the agent is the mount
path within the guest and not the device name.
The current logic is trying to match the
device name to the volume path which will never
match.
This change will simplify the
get_volume_capacity_stats and
get_volume_inode_stats to just call statfs and
get the bytes and inodes usage of the volume
path directly.
Fixes: #4297
Signed-off-by: Yibo Zhuang <yibzhuang@gmail.com>
Today the shim does a translation when doing
direct-volume stats where it takes the source and
returns the mount path within the guest.
The source for a direct-assigned volume is actually
the device path on the host and not the publish
volume path.
This change will perform a lookup of the mount info
during direct-volume stats to ensure that the
device path is provided to the shim for querying
the volume stats.
Fixes: #4297
Signed-off-by: Yibo Zhuang <yibzhuang@gmail.com>
The go default http mux AFAIK doesn’t support pattern
routing so right now client is padding the url
for direct-volume stats with a subpath of the volume
path and this will always result in 404 not found returned
by the shim.
This change will update the shim to take the volume
path as a GET query parameter instead of a subpath.
If the parameter is missing or empty, then return
400 BadRequest to the client.
Fixes: #4297
Signed-off-by: Yibo Zhuang <yibzhuang@gmail.com>
The action function expects a function that returns error
but the current direct-volume stats Action returns
(string, error) which is invalid.
This change fixes the format and print out the stats from
the command instead.
Fixes: #4293
Signed-off-by: Yibo Zhuang <yibzhuang@gmail.com>
This PR removes the clear containers reference as this is not longer
being used and is deprecated at the rootfs builder README.
Fixes#4278
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This PR removes the nemu.conf as we are not longer using NEMU from
the kernel configurations.
Fixes#4272
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
The documentation of the bufio package explicitly says
"Err returns the first non-EOF error that was encountered by the
Scanner."
When io.EOF happens, `Err()` will return `nil` and `Scan()` will return
`false`.
Fixes#4079
Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
This allows to get guest early boot logs which are usually
missed when virtconsole is used.
- It utilizes previous work on the govmm side:
https://github.com/kata-containers/govmm/pull/203
- unit test added
Fixes: #4237
Signed-off-by: Snir Sheriber <ssheribe@redhat.com>
For the Gramine Shielded Containers guest kernel, CONFIG_NUMA must be
enabled.
Fixes #4266
Signed-off-by: Chelsea Mafrica <chelsea.e.mafrica@intel.com>
In the is_signal_handled function, when parsing the hex string returned
from `/proc/<pid>/status` the space/tab character after the colon
is not removed.
This patch trims the result of SigCgt so that
all whitespace characters are removed. It also extends the existing
test cases to check for this scenario.
Fixes: #4250
Signed-off-by: Champ-Goblem <cameron@northflank.com>
As we are using a containerd version > 1.4 we need to update
the runc containerd runtime.
Fixes#4263
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
As we finally can move to using the rust virtiofs daemon, let's stop
bulding and packaging the C version of the virtiofsd for x86_64.
Fixes: #4249
Depends-on: github.com/kata-containers/tests#4785
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
As now we build and ship the rust version of virtiofsd, which is not
tied to QEMU, we need to update its default location to match with where
we're installing this binary.
Fixes: #4249
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
There are a few patches for SGX numa support in QEMU added after the
6.2.0 release. Add them for SGX support in Kata.
Fixes#4254
Signed-off-by: Chelsea Mafrica <chelsea.e.mafrica@intel.com>
As already done for the other assets we rely on, let's build (well, pull
in this very specific case) the virtiofsd binary, as we're relying on
its standlone rust version from now on.
Fixes: #4234
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
As done for the other binaries we release, let's add support for
"building" (or pulling down) the static binary we ship as part of the
kata-containers static tarball (the same one used by kata-deploy).
Right now the virtiofsd is installed in /opt/kata/libexec/virtiofsd, a
different path than the virtiofsd that comes with QEMU.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
As virtiofsd comes in the `zip` format, let's install unzip in the
containers and then be able to access the virtiofsd binary.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Right now this is very much x86_64 specific, but I'd like to count on
the maintainers of the other architectures to expand it.
Also, the name as it's now may be misleading, as we're actually only
pulling the binary that's statically built using `musl` and released as
part of virtiofsd official releases. But we'll need to build it for the
other architectures, thus I'm following the naming of the scripts used
by the other components.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
As we're switching to using the rust version of the virtiofsd, let's
give it its own entry in the versions.yaml file, as it's no longer part
of QEMU.
It's important to mention that GitLab doesn't provide a well formed URL
for the releases. Instead, it adds there a hash, leading us to have to
add the specific link for the tarball.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
go-test.sh by default adds the -v option to 'go test' meaning that output
will be printed from all the passing tests as well as any failing ones.
This results in a lot of output in which it's often difficult to locate the
failing tests you're interested in.
So, remove -v from the default flags.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
One of the responsibilities of the go-test.sh script is setting up the
default flags for 'go test'. This is constructed across several different
places in the script using several unneeded intermediate variables though.
Consolidate all the flag construction into one place.
fixes#4190
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
go-test.sh changes behaviour based on both the $CI and $KATA_DEV_MODE
variables, but not in a way that makes a lot of sense.
If either one is set it uses the test_coverage path, instead of the
test_local path. That collects coverage information, as the name
suggests, but it also means it runs the tests twice as root and
non-root, which is very non-obvious.
It's not clear what use case the test_local path is for at all.
Developer local builds will typically have $KATA_DEV_MODE set and CI
builds will have $CI set. There's essentially no downside to running
coverage all the time - it has little impact on the test runtime.
In addition, if *both* $CI and $KATA_DEV_MODE are set, the script
refuses to run things as root, considering it "unsafe". While having
both set might be unwise in a general sense, there's not really any
way running sudo can be any more unsafe than it is with either one
set.
So, simplify everything by just always running the test_coverage path.
This leaves the test_local path unused, so we can remove it entirely.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
go-test.sh accepts subcommands, however invoking it in the usual way via
the Makefile doesn't use them. In fact the only remaining subcommand is
"help" and we already have another way of getting the usage information
(-h or --help). We don't need a second way, so just drop subcommand
handling.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
