diff options
| author | Andrew Donnellan <ajd@linux.ibm.com> | 2023-02-24 15:10:12 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-04-20 13:21:46 +1000 |
| commit | df9cad09493808dca7d16a2fbcac1a78e8d412af (patch) | |
| tree | 155e3b93631ecfda14ba7d6961273ef16ce81555 /arch/powerpc/platforms/pseries/plpks.c | |
| parent | ae7312c09014fceb782a92cfb934e973f08b338f (diff) | |
powerpc/pseries: Add FW_FEATURE_PLPKS feature flag
Add a firmware feature flag, FW_FEATURE_PLPKS, to indicate availability of
Platform KeyStore related hcalls.
Check this flag in plpks_is_available() and pseries_plpks_init() before
trying to make an hcall.
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230224041012.772648-1-ajd@linux.ibm.com
Diffstat (limited to 'arch/powerpc/platforms/pseries/plpks.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/plpks.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/plpks.c b/arch/powerpc/platforms/pseries/plpks.c index 6f7bf3fc3aea..b0658ea3eccb 100644 --- a/arch/powerpc/platforms/pseries/plpks.c +++ b/arch/powerpc/platforms/pseries/plpks.c @@ -378,7 +378,7 @@ bool plpks_is_available(void) { int rc; - if (!firmware_has_feature(FW_FEATURE_LPAR)) + if (!firmware_has_feature(FW_FEATURE_PLPKS)) return false; rc = _plpks_get_config(); @@ -690,6 +690,9 @@ static __init int pseries_plpks_init(void) { int rc; + if (!firmware_has_feature(FW_FEATURE_PLPKS)) + return -ENODEV; + rc = _plpks_get_config(); if (rc) { |