diff options
| author | Daniel Latypov <dlatypov@google.com> | 2022-05-13 11:10:32 -0700 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2022-07-07 17:51:46 -0600 |
| commit | 9241bc818d54b9cb7d1c9a28f26afa58e6d0bb7c (patch) | |
| tree | 63d62d4b390cafc3391636f0467ebfd6992a3eb1 /tools/testing/kunit | |
| parent | e756dbebd95d7ea7ae2a2343e8924eee10ec6253 (diff) | |
kunit: tool: cosmetic: don't specify duplicate kernel cmdline options
Context:
When using a non-UML arch, kunit.py will boot the test kernel with
options like these by default (this is x86_64):
> mem=1G console=tty kunit_shutdown=halt console=ttyS0 kunit_shutdown=reboot
The first three options are added unconditionally but are only intended
for UML.
1. 'mem=1G' is redundant with the '-m 1024' that we hard-code into the
qemu commandline.
2. We specify a 'console' for all tools/testing/kunit/qemu_configs/*.py
already, so 'console=tty' gets overwritten.
3. For QEMU, we need to use 'reboot', and for UML we need to use 'halt'.
If you switch them, kunit.py will hang until the --timeout expires.
This patch:
Having these duplicate options is a bit noisy.
Switch so we only add UML-specific options for UML.
I.e. we now get
UML: 'mem=1G console=tty kunit_shutdown=halt' (unchanged)
x86_64: 'console=ttyS0 kunit_shutdown=reboot'
Side effect: you can't overwrite these options on UML w/ --kernel_arg.
But you already couldn't for QEMU (console, kunit_shutdown), and why
would you want to?
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/kunit')
| -rw-r--r-- | tools/testing/kunit/kunit_kernel.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py index b51ce102d82e..12527e7f92a2 100644 --- a/tools/testing/kunit/kunit_kernel.py +++ b/tools/testing/kunit/kunit_kernel.py @@ -160,6 +160,7 @@ class LinuxSourceTreeOperationsUml(LinuxSourceTreeOperations): def start(self, params: List[str], build_dir: str) -> subprocess.Popen: """Runs the Linux UML binary. Must be named 'linux'.""" linux_bin = os.path.join(build_dir, 'linux') + params.extend(['mem=1G', 'console=tty', 'kunit_shutdown=halt']) return subprocess.Popen([linux_bin] + params, stdin=subprocess.PIPE, stdout=subprocess.PIPE, @@ -330,7 +331,6 @@ class LinuxSourceTree: def run_kernel(self, args=None, build_dir='', filter_glob='', timeout=None) -> Iterator[str]: if not args: args = [] - args.extend(['mem=1G', 'console=tty', 'kunit_shutdown=halt']) if filter_glob: args.append('kunit.filter_glob='+filter_glob) |