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Russell CurreyandGreg Kroah-Hartman 5906357807 powerpc/pseries: Avoid hcall in plpks_is_available() on non-pseries

commit f82cdc37c4 upstream.

plpks_is_available() can be called on any platform via kexec but calls
_plpks_get_config() which makes a hcall, which will only work on pseries.
Fix this by returning early in plpks_is_available() if hcalls aren't
possible.

Fixes: 119da30d03 ("powerpc/pseries: Expose PLPKS config values, support additional fields")
Reported-by: Murphy Zhou <jencce.kernel@gmail.com>
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230222021708.146257-1-ruscur@russell.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-08-03 08:49:53 +02:00

boot

powerpc/boot: Disable power10 features after BOOTAFLAGS assignment

2023-09-13 09:42:20 +02:00

configs

powerpc/configs: Update defconfig with now user-visible CONFIG_FSL_IFC

2024-08-03 08:48:52 +02:00

crypto

…

include

powerpc/kexec: make the update_cpus_node() function public

2024-08-03 08:49:18 +02:00