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| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2020-11-27 10:14:21 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-04 01:01:27 +1100 |
| commit | b2ff33a10c8b3e9d260c57df38b5cd3765a0b785 (patch) | |
| tree | bd24ff20899b6eadeeb43bfa9639de818a1e4011 /arch/powerpc/mm | |
| parent | 292f86c4c683a1064aff7210348da088c1573ee0 (diff) | |
| download | linux-b2ff33a10c8b3e9d260c57df38b5cd3765a0b785.tar.bz2 | |
powerpc/book3s64/hash/kuap: Enable kuap on hash
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201127044424.40686-20-aneesh.kumar@linux.ibm.com
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/book3s64/pkeys.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c index 8d1bf2f18ca4..9f01c86d2beb 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -265,7 +265,12 @@ void __init setup_kuep(bool disabled) #ifdef CONFIG_PPC_KUAP void __init setup_kuap(bool disabled) { - if (disabled || !early_radix_enabled()) + if (disabled) + return; + /* + * On hash if PKEY feature is not enabled, disable KUAP too. + */ + if (!early_radix_enabled() && !early_mmu_has_feature(MMU_FTR_PKEY)) return; if (smp_processor_id() == boot_cpuid) { |