diff options
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index ba404dd9ce1d..44b4c432a273 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -1,13 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * * Common boot and setup code. * * Copyright (C) 2001 PPC64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/export.h> @@ -68,6 +64,7 @@ #include <asm/cputhreads.h> #include <asm/hw_irq.h> #include <asm/feature-fixups.h> +#include <asm/kup.h> #include "setup.h" @@ -331,6 +328,12 @@ void __init early_setup(unsigned long dt_ptr) */ configure_exceptions(); + /* + * Configure Kernel Userspace Protection. This needs to happen before + * feature fixups for platforms that implement this using features. + */ + setup_kup(); + /* Apply all the dynamic patching */ apply_feature_fixups(); setup_feature_keys(); @@ -383,6 +386,9 @@ void early_setup_secondary(void) /* Initialize the hash table or TLB handling */ early_init_mmu_secondary(); + /* Perform any KUP setup that is per-cpu */ + setup_kup(); + /* * At this point, we can let interrupts switch to virtual mode * (the MMU has been setup), so adjust the MSR in the PACA to @@ -932,7 +938,7 @@ void setup_rfi_flush(enum l1d_flush_type types, bool enable) enabled_flush_types = types; - if (!no_rfi_flush) + if (!no_rfi_flush && !cpu_mitigations_off()) rfi_flush_enable(enable); } |