linux.git/tools/testing/kunit, branch v6.12.80

kunit: tool: copy caller args in run_kernel to prevent mutation

2026-03-13T16:20:40+00:00

[ Upstream commit 40804c4974b8df2adab72f6475d343eaff72b7f6 ]

run_kernel() appended KUnit flags directly to the caller-provided args
list. When exec_tests() calls run_kernel() repeatedly (e.g. with
--run_isolated), each call mutated the same list, causing later runs
to inherit stale filter_glob values and duplicate kunit.enable flags.

Fix this by copying args at the start of run_kernel(). Add a regression
test that calls run_kernel() twice with the same list and verifies the
original remains unchanged.

Fixes: ff9e09a3762f ("kunit: tool: support running each suite/test separately")
Signed-off-by: Shuvam Pandey 
Reviewed-by: David Gow 
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

kunit: qemu_configs: Disable faulting tests on 32-bit SPARC

2025-07-10T14:04:55+00:00

[ Upstream commit 1d31d536871fe8b16c8c0de58d201c78e21eb3a2 ]

The 32-bit sparc configuration (--arch sparc) crashes on
the kunit_fault_test. It's known that some architectures don't handle
deliberate segfaults in kernel mode well, so there's a config switch to
disable tests which rely upon it by default.

Use this for the sparc config, making sure the default config for it
passes.

Link: https://lore.kernel.org/r/20250416093826.1550040-1-davidgow@google.com
Fixes: 87c9c1631788 ("kunit: tool: add support for QEMU")
Signed-off-by: David Gow 
Reviewed-by: Thomas Weißschuh 
Tested-by: Thomas Weißschuh 
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

kunit: qemu_configs: sparc: Explicitly enable CONFIG_SPARC32=y

2025-07-10T14:04:54+00:00

[ Upstream commit d16b3d0fb43cb0f9eb21b35c2d2c870b3f38ab1d ]

The configuration generated by kunit ends up with a 32bit configuration.
A new kunit configuration for 64bit is to be added.
To make the difference clearer spell out the variant in the kunit
reference config.

Link: https://lore.kernel.org/r/20250415-kunit-qemu-sparc64-v1-1-253906f61102@linutronix.de
Signed-off-by: Thomas Weißschuh 
Reviewed-by: David Gow 
Signed-off-by: Shuah Khan 
Stable-dep-of: 1d31d536871f ("kunit: qemu_configs: Disable faulting tests on 32-bit SPARC")
Signed-off-by: Sasha Levin

kunit: qemu_configs: sparc: use Zilog console

2025-07-10T14:04:54+00:00

[ Upstream commit e275f44e0a187b9d76830847976072f1c17b4b7b ]

The driver for the 8250 console is not used, as no port is found.
Instead the prom0 bootconsole is used the whole time.
The prom driver translates '\n' to '\r\n' before handing of the message
off to the firmware. The firmware performs the same translation again.
In the final output produced by QEMU each line ends with '\r\r\n'.
This breaks the kunit parser, which can only handle '\r\n' and '\n'.

Use the Zilog console instead. It works correctly, is the one documented
by the QEMU manual and also saves a bit of codesize:
Before=4051011, After=4023326, chg -0.68%

Observed on QEMU 9.2.0.

Link: https://lore.kernel.org/r/20250214-kunit-qemu-sparc-console-v1-1-ba1dfdf8f0b1@linutronix.de
Fixes: 87c9c1631788 ("kunit: tool: add support for QEMU")
Signed-off-by: Thomas Weißschuh 
Reviewed-by: David Gow 
Signed-off-by: Shuah Khan 
Stable-dep-of: 1d31d536871f ("kunit: qemu_configs: Disable faulting tests on 32-bit SPARC")
Signed-off-by: Sasha Levin

kunit: tool: Use qboot on QEMU x86_64

2025-05-29T09:02:49+00:00

[ Upstream commit 08fafac4c9f289a9d9a22d838921e4b3eb22c664 ]

As noted in [0], SeaBIOS (QEMU default) makes a mess of the terminal,
qboot does not.

It turns out this is actually useful with kunit.py, since the user is
exposed to this issue if they set --raw_output=all.

qboot is also faster than SeaBIOS, but it's is marginal for this
usecase.

[0] https://lore.kernel.org/all/CA+i-1C0wYb-gZ8Mwh3WSVpbk-LF-Uo+njVbASJPe1WXDURoV7A@mail.gmail.com/

Both SeaBIOS and qboot are x86-specific.

Link: https://lore.kernel.org/r/20250124-kunit-qboot-v1-1-815e4d4c6f7c@google.com
Signed-off-by: Brendan Jackman 
Reviewed-by: David Gow 
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

kunit: qemu_configs: SH: Respect kunit cmdline

2025-04-25T08:47:48+00:00

[ Upstream commit b26c1a85f3fc3cc749380ff94199377fc2d0c203 ]

The default SH kunit configuration sets CONFIG_CMDLINE_OVERWRITE which
completely disregards the cmdline passed from the bootloader/QEMU in favor
of the builtin CONFIG_CMDLINE.
However the kunit tool needs to pass arguments to the in-kernel kunit core,
for filters and other runtime parameters.

Enable CONFIG_CMDLINE_EXTEND instead, so kunit arguments are respected.

Link: https://lore.kernel.org/r/20250407-kunit-sh-v1-1-f5432a54cf2f@linutronix.de
Fixes: 8110a3cab05e ("kunit: tool: Add support for SH under QEMU")
Signed-off-by: Thomas Weißschuh 
Reviewed-by: David Gow 
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

kunit: tool: Build compile_commands.json

2024-09-12T15:52:36+00:00

compile_commands.json is used by clangd[1] to provide code navigation
and completion functionality to editors. See [2] for an example
configuration that includes this functionality for VSCode.

It can currently be built manually when using kunit.py, by running:

  ./scripts/clang-tools/gen_compile_commands.py -d .kunit

With this change however, it's built automatically so you don't need to
manually keep it up to date.

Unlike the manual approach, having make build the compile_commands.json
means that it appears in the build output tree instead of at the root of
the source tree, so you'll need to add --compile-commands-dir=.kunit to
your clangd args for it to be found. This might turn out to be pretty
annoying, I'm not sure yet. If so maybe we can later add some hackery to
kunit.py to work around it.

[1] https://clangd.llvm.org/
[2] https://github.com/FlorentRevest/linux-kernel-vscode

Signed-off-by: Brendan Jackman 
Reviewed-by: Nathan Chancellor 
Signed-off-by: Shuah Khan

Merge tag 'riscv-config-for-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/drivers

2024-05-07T09:02:56+00:00

RISC-V SoC Kconfig Updates for v6.10

A few different bits of SoC-related Kconfig work. The first part of
this is shared with the DT updates - the modification of all SOC_CANAAN
users to SOC_CANAAN_K210 to split the existing m-mode nommu k210 away
from the k230 that is able to be used in a "common" kernel.

The other thing here is the removal of most of the SOC_VENDOR options,
with their ARCH_VENDOR equivalents that've been waiting in the wings for
1 year+ now made visible. Due a lapse on my part when originally adding
the ARCH_VENDOR stuff, the Microchip transition isn't complete - the
_POLARFIRE was a mistake to keep as there's gonna be non-PolarFire
RISC-V stuff from Microchip soonTM.

Signed-off-by: Conor Dooley 

* tag 'riscv-config-for-v6.10' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
  riscv: config: enable ARCH_CANAAN in defconfig
  RISC-V: drop SOC_VIRT for ARCH_VIRT
  RISC-V: drop SOC_SIFIVE for ARCH_SIFIVE
  RISC-V: drop SOC_MICROCHIP_POLARFIRE for ARCH_MICROCHIP
  RISC-V: Drop unused SOC_CANAAN
  reset: k210: Deprecate SOC_CANAAN and use SOC_CANAAN_K210
  pinctrl: k210: Deprecate SOC_CANAAN and use SOC_CANAAN_K210
  clk: k210: Deprecate SOC_CANAAN and use SOC_CANAAN_K210
  soc: canaan: Deprecate SOC_CANAAN and use SOC_CANAAN_K210 for K210
  riscv: Kconfig.socs: Split ARCH_CANAAN and SOC_CANAAN_K210

Link: https://lore.kernel.org/r/20240503-mardi-underling-3d81a9f97329@spud
Signed-off-by: Arnd Bergmann

RISC-V: drop SOC_VIRT for ARCH_VIRT

2024-04-10T10:37:50+00:00

The ARCH_ and SOC_ versions of this symbol have persisted for quite a
while now in parallel. Generated .config files from previous LTS kernels
should have both. Finally remove SOC_VIRT and update all config files
using it.

Acked-by: Palmer Dabbelt 
Signed-off-by: Conor Dooley

Merge tag 'linux_kselftest-kunit-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2024-03-29T22:35:12+00:00

Pull KUnit fixes from Shuah Khan:
 "One urgent fix for --alltests build failure related to renaming of
  CONFIG_DAMON_DBGFS to DAMON_DBGFS_DEPRECATED to the missing config
  option"

* tag 'linux_kselftest-kunit-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: configs: Enable CONFIG_DAMON_DBGFS_DEPRECATED for --alltests