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powerpc/book3s64/hash/kuep: Enable KUEP on hash

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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/20201127044424.40686-21-aneesh.kumar@linux.ibm.com
This commit is contained in:
Aneesh Kumar K.V 2020-11-27 10:14:22 +05:30 committed by Michael Ellerman
parent b2ff33a10c
commit c91435d95c
1 changed files with 6 additions and 1 deletions
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7
arch/powerpc/mm/book3s64/pkeys.c
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@ -244,7 +244,12 @@ out:
#ifdef CONFIG_PPC_KUEP #ifdef CONFIG_PPC_KUEP
void __init setup_kuep(bool disabled) void __init setup_kuep(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; return;
if (smp_processor_id() == boot_cpuid) { if (smp_processor_id() == boot_cpuid) {