diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/nohash/44x.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/mm/nohash/44x.c b/arch/powerpc/mm/nohash/44x.c index 3d6ae7c72412..7da6d1e9fc9b 100644 --- a/arch/powerpc/mm/nohash/44x.c +++ b/arch/powerpc/mm/nohash/44x.c @@ -239,3 +239,16 @@ void __init mmu_init_secondary(int cpu) } } #endif /* CONFIG_SMP */ + +#ifdef CONFIG_PPC_KUEP +void __init setup_kuep(bool disabled) +{ + if (disabled) + patch_instruction_site(&patch__tlb_44x_kuep, ppc_inst(PPC_RAW_NOP())); + else + pr_info("Activating Kernel Userspace Execution Prevention\n"); + + if (IS_ENABLED(CONFIG_PPC_47x) && disabled) + patch_instruction_site(&patch__tlb_47x_kuep, ppc_inst(PPC_RAW_NOP())); +} +#endif |