diff options
| author | Russell Currey <ruscur@russell.cc> | 2023-02-10 09:03:57 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-12 12:12:39 +0100 |
| commit | 9ee76bd5c7e39b622660cc14833ead1967f2038d (patch) | |
| tree | 6278695f1f057a1edfdcd62e35c68ecb273639cb | |
| parent | powerpc/pseries: Clarify warning when PLPKS password already set (diff) | |
| download | linux-9ee76bd5c7e39b622660cc14833ead1967f2038d.tar.xz linux-9ee76bd5c7e39b622660cc14833ead1967f2038d.zip | |
powerpc/pseries: Add helper to get PLPKS password length
Add helper function to get the PLPKS password length. This will be used
in a later patch to support passing the password between kernels over
kexec.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-23-ajd@linux.ibm.com
| -rw-r--r-- | arch/powerpc/include/asm/plpks.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/plpks.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/plpks.h b/arch/powerpc/include/asm/plpks.h index 0c49969b0864..757313e00521 100644 --- a/arch/powerpc/include/asm/plpks.h +++ b/arch/powerpc/include/asm/plpks.h @@ -171,6 +171,11 @@ u32 plpks_get_maxlargeobjectsize(void); */ u64 plpks_get_signedupdatealgorithms(void); +/** + * Returns the length of the PLPKS password in bytes. + */ +u16 plpks_get_passwordlen(void); + #endif // CONFIG_PSERIES_PLPKS #endif // _ASM_POWERPC_PLPKS_H diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c index 01ae919b4497..671a10acaebf 100644 --- a/arch/powerpc/platforms/pseries/plpks.c +++ b/arch/powerpc/platforms/pseries/plpks.c @@ -359,6 +359,11 @@ u64 plpks_get_signedupdatealgorithms(void) return signedupdatealgorithms; } +u16 plpks_get_passwordlen(void) +{ + return ospasswordlength; +} + bool plpks_is_available(void) { int rc; |