Fixed a bug with the debug kernel build where common/ was repeated
after the common path variable, resulting in the debug
confs never being picked up.
This exposed a subsequent bug where the debug conf
was included in other builds, this is also fixed by creating a
separate directory for debug confs with one file at the moment,
debug.conf that contains debug configurations and bpf specific
configs.
To enable kernel builds (specifically for bpf) the dwarves package was added
to the kernel dockerfile for the pahole package.
Signed-off-by: Agam Dua <agam_dua@apple.com>
This change adds the CONFIDENTIAL_GUEST variable to the kernel
build logic. Similar to commit
976df22119, we would like to enable
the cryptsetup functionalities not only when building a measured
root file system, but also when building for a confidential guest.
The current state is that not all confidential guests use a
measured root filesystem, and as a matter of fact, we should
indeed decouple these aspects.
With the current convention, a confidential guest is a user of CDH
with its storage features. A better naming of the
CONFIDENTIAL_GUEST variable could have been a naming related to CDH
storage functionality. Further, the kernel build script's -m
parameter could be improved too - as indicated by this change, not
only measured rootfs builds will need the cryptsetup.conf file.
Signed-off-by: Manuel Huber <manuelh@nvidia.com>
Remove the initramfs folder, its build steps, and use the kernel
based dm-verity enforcement for the handlers which used the
initramfs mode. Also, remove the initramfs verity mode
capability from the shims and their configs.
Signed-off-by: Manuel Huber <manuelh@nvidia.com>
This change introduces the kernelinit dm-verity mode, allowing
initramfs-less dm-verity enforcement against the rootfs image.
For this, the change introduces a new variable with dm-verity
information. This variable will be picked up by shim
configurations in subsequent commits.
This will allow the shims to build the kernel command line
with dm-verity information based on the existing
kernel_parameters configuration knob and a new
kernel_verity_params configuration knob. The latter
specifically provides the relevant dm-verity information.
This new configuration knob avoids merging the verity
parameters into the kernel_params field. Avoiding this, no
cumbersome escape logic is required as we do not need to pass the
dm-mod.create="..." parameter directly in the kernel_parameters,
but only relevant dm-verity parameters in semi-structured manner
(see above). The only place where the final command line is
assembled is in the shims. Further, this is a line easy to comment
out for developers to disable dm-verity enforcement (or for CI
tasks).
This change produces the new kernelinit dm-verity parameters for
the NVIDIA runtime handlers, and modifies the format of how
these parameters are prepared for all handlers. With this, the
parameters are currently no longer provided to the
kernel_params configuration knob for any runtime handler.
This change alone should thus not be used as dm-verity
information will no longer be picked up by the shims.
systemd-analyze on the coco-dev handler shows that using the
kernelinit mode on a local machine, less time is spent in the
kernel phase, slightly speeding up pod start-up. On that machine,
the average of 172.5ms was reduced to 141ms (4 measurements, each
with a basic pod manifest), i.e., the kernel phase duration is
improved by about 18 percent.
Signed-off-by: Manuel Huber <manuelh@nvidia.com>
This is needed to the kernel setup picks up the correct
config values from our fragments directories.
Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
We want to be able to build a debug version of the kernel for various
use-cases like debugging, tracing and others.
Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
At the proper step pass-through the var KBUILD_SIGN_PIN
so that the kernel_headers step has the PIN for encrypting
the signing key.
Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
Moved the measure rootfs logic from kata-deploy-binaries.sh to the
kernel's builder script so that the former get less bloated with
components's specific code.
Fixes#6674
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
By convention the caller of tools/packaging/kernel/build-kernel.sh changes
the script behavior by passing arguments, whereas, for measured rootfs
it has used an environment variable (MEASURED_ROOTFS). This refactor
the script so that the caller now must pass the "-m" argument to enable
the build of the kernel with measured rootfs support.
Fixes#6674
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Integrate initramfs into guest kernel as one binary,
which will be measured by the firmware together.
Fixes: #6674
Signed-off-by: Wang, Arron <arron.wang@intel.com>
Let's add support for caching Kernel artefacts that are generated using
the kata-deploy local-build scripts.
Right now those are not used, but we'll switch to using them very soon
as part of upcoming changes of how we build the components we test in
our CI.
Fixes: #6480
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
There's no need to pass repo_root_dir to get_last_modification() as the
variable used everywhere is exported from that very same file.
Fixes: #6431
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This is used in several parts of the code, and can have a single
declaration as part of the `lib.sh` file, which is already imported by
all the places where it's used.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This, combined with the effort of caching builder images *and* only
performing the build itself inside the builder images, is the very first
step for reproducible builds for the project.
Reproducible builds are quite important when we talk about Confidential
Containers, as users may want to verify the content used / provided by
the CSPs, and this is the first step towards that direction.
Fixes: #5517
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Let's add the needed infra for only building and pushing the kernel
builder image to the Kata Containers' quay.io registry.
Fixes: #5476
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Let's first try to pull a pre-existing image, instead of building our
own, to be used as a builder image for the kernel.
This will save us some CI time.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
