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| author | Sandipan Das <sandipan@linux.ibm.com> | 2020-06-04 18:26:08 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-06-30 14:37:47 +1000 |
| commit | 828ca4320d130bbe1d12866152600c49ff6a9f79 (patch) | |
| tree | 19669711fd35c984590e4e6cb434cdbf11474ff8 /arch/powerpc/boot/stdlib.c | |
| parent | 105fb38124a490f38e9c1e23bb4c4a0b6ba12fdb (diff) | |
selftests/powerpc: Fix pkey access right updates
The Power ISA mandates that all writes to the Authority
Mask Register (AMR) must always be preceded as well as
succeeded by a context synchronizing instruction.
This makes sure that the tests follow this requirement
when attempting to update a pkey's access rights.
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200604125610.649668-2-sandipan@linux.ibm.com
Diffstat (limited to 'arch/powerpc/boot/stdlib.c')
0 files changed, 0 insertions, 0 deletions