Set CONFIG_BLK_DEV_WRITE_MOUNTED=y to restore previous kernel behaviour.
Kernel v6.8+ will by default block buffer writes to block devices mounted by filesystems.
This unfortunately is what we need to use mounted loop devices needed by some teams
to build OSIs and as an overlay backing store.
More info on this config item [here](https://cateee.net/lkddb/web-lkddb/BLK_DEV_WRITE_MOUNTED.html)
Fixes: #10808
Signed-off-by: Simon Kaegi <simon.kaegi@gmail.com>
Add mglru, debugfs and psi to dragonball-experimental/mem_agent.conf to
support mem_agent function.
Fixes: #10625
Signed-off-by: Hui Zhu <teawater@antgroup.com>
KinD checks for the presence of this (and other) kernel configuration
via scripts like
https://blog.hypriot.com/post/verify-kernel-container-compatibility/ or
attempts to directly use /proc/sys/kernel/keys/ without checking to see
if it exists, causing an exit when it does not see it.
Docker/it's consumers apparently expect to be able to use the kernel
keyring and it's associated syscalls from/for containers.
There aren't any known downsides to enabling this except that it would
by definition enable additional syscalls defined in
https://man7.org/linux/man-pages/man7/keyrings.7.html which are
reachable from userspace. This minimally increases the attack surface of
the Kata Kernel, but this attack surface is minimal (especially since
the kernel is most likely being executed by some kind of hypervisor) and
highly restricted compared to the utility of enabling this feature to
get further containerization compatibility.
Signed-off-by: Crypt0s <BryanHalf@gmail.com>
So far we were not prepared to deal with release candidates as those:
* Do not have a sha256sum in the sha256sums provided by the kernel cdn
* Come from a different URL (directly from Linus)
* Have a different suffix (.tar.gz, instead of .tar.xz)
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
This PR removes the kernel config repo variable at the build kernel
script as it is not used.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Add CONFIG_PAGE_REPORTING, CONFIG_BALLOON_COMPACTION and
CONFIG_VIRTIO_BALLOON to dragonball-experimental configs to open
dragonball function and free page reporting function.
Signed-off-by: Hui Zhu <teawater@antgroup.com>
With Nvidia DPU or ConnectX network adapter, VF can do VFIO passthrough
to guest VM in `guest-kernel` mode. In the guest kernel, the adapter's
driver is required to claim the VFIO device and create network interface.
Signed-off-by: Lei Huang <leih@nvidia.com>
This PR removes the CI variable from build kernel script which
is not longer supported it as this was part of the jenkins
environment.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
After v5.14 there is no cpu_hotplug_begin function
now cpus_write_lock same for cpu_hotplug_done = cpus_write_unlock
Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
While enabling the attestation for IBM SE, it was observed that
a kernel config `CONFIG_S390_UV_UAPI` is missing.
This config is required to present an ultravisor in the guest VM.
Ths commit adds the missing config.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
Since yq frequently updates, let's upgrade to a version from February to
bypass potential issues with versions 4.41-4.43 for now. We can always
upgrade to the newest version if necessary.
Fixes#9354
Depends-on:github.com/kata-containers/tests#5818
Signed-off-by: Beraldo Leal <bleal@redhat.com>
`CONFIG_TN3270_TTY` and `CONFIG_S390_AP_IOMMU` are dropped for s390x
in 6.7.x which is used for a confidential kernel.
But they are still used for a vanilla kernel. So we need to add them
to the whitelist.
Fixes: #9465
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
CONFIG_CRYPTO_ECDSA is not supported in older kernels such as 5.10.x
which may cause building broken problem if we build such kernel with
NVIDIA GPU in version 5.10.x
So this patch is to add CONFIG_CRYPTO_ECDSA into whitelist.conf to
avoid break building guest kernel with NVIDIA GPU.
Fixes: #9140
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
- enable CONFIG_MTRR,CONFIG_X86_PAT on x86_64 for nvidia gpu
- optimize -f of build-kernel.sh, clean old kernel path and config before setup
- add kernel 5.16.x
Fixes: #9143
Signed-off-by: Jimmy-Xu <xjimmyshcn@gmail.com>
Now we're using a "confidential" image that has support for all of
those.
Fixes: #9010 -- part II
#8982 -- part II
#8978 -- part II
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This PR removes the jenkins reference which is not longer being used
in the kernel documentation.
Fixes#9046
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This is already done for the TDX kernel, and should have been done also
for the confidential one.
This action requires us to bump the kernel version as the resulting
kernel will be different from the cached one.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This is a follow up to the work of minimizing targets, unifying TDX,SNP builds for NVIDIA GPUs
Fixes: #8828
Signed-off-by: Zvonko Kaiser <zkaiser@nvidia.com>
We're using a Kernel based on v6.7, which should include all te
patches needed for SEV / SNP / TDX.
By doing this, later on, we'll be able to stop building the specific
kernel for each one of the targets we have for the TEEs.
Let's note that we've introduced the "confidential" target for the
kernel builder script, while the TEE specific builds are being kept as
they're -- at least for now.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
add pci add and del guest kernel patch as the extension
in the upcall device manager server side.
also, dump config version to 120 since we need to add config
for dragonball pci in upcall
fixes: #8741
Signed-off-by: Gerry Liu <gerry@linux.alibaba.com>
Signed-off-by: Helin Guo <helinguo@linux.alibaba.com>
Signed-off-by: Chao Wu <chaowu@linux.alibaba.com>
The driver enables the userspace interface to communicate with the TDX
module to request the TDX guest details, like the attestation report.
Fixes: #8555
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
The KATA_BUILD_CC variable plus the existence (or not) of the initramfs
were used to determine whether to build the kernel for measured rootfs
or not. Currently the variable MEASURED_ROOTFS has been used
to trigger the feature build and when it is activated it should expect
the initramfs exist. In other words, this changed the kernel build
so that if `MEASURED_ROOTFS=yes` then the initramf file must exist and
be found.
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>
Backport the erofs patch from linux kernel to solve the error #8083Fixes: #8083
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Co-authored-by: Gao Xiang <hsiangkao@linux.alibaba.com>
The virtio vsock driver has a small window during initialization
where it can silently drop replies to connection requests.
Because no reply is sent, kata waits for 10 seconds and in the
end it generates a connection timeout error in HybridVSockDialer.
Fixes: #8291
Signed-off-by: Alexandru Matei <alexandru.matei@uipath.com>
