[PATCH v2 08/11] efi: selftest: add runtime variable tests with non-volatile storage

[Simon Glass]

On 2026-05-14T12:49:13, Harsimran Singh Tungal
<harsimransingh.tungal at arm.com> wrote:
> efi: selftest: add runtime variable tests with non-volatile storage
>
> Extend runtime variable tests for persistent storage
>
> Runtime variable selftests already cover the volatile-store path in a
> single run, but non-volatile storage needs state to survive a reboot.
> Make that flow explicit by keeping the existing "variables at runtime"
> test for CONFIG_EFI_RT_VOLATILE_STORE=y and adding on-request
> "variables at runtime setup" and "variables at runtime verify" tests
> for the non-volatile case.
>
> The setup phase runs QueryVariableInfo(), exercises create/delete of a
> runtime variable, prepares the persistent test state, and prompts the
> user to reboot and run the verify test. If an old test variable is
> already present, reuse it only when it matches the expected
> half-payload; otherwise delete it and recreate clean state. The setup
> path also performs a best-effort cleanup if a later check fails.
>
> The verify phase checks the prepared value, appends the remaining
> payload, validates the full contents, deletes the test variable, and
> [...]
>
> lib/efi_selftest/efi_selftest_variables_runtime.c | 713 +++++++++++++++-------
>  1 file changed, 481 insertions(+), 232 deletions(-)

Lots of subtle things here, but if it works it seems good to me.

Reviewed-by: Simon Glass <sjg at chromium.org>