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/* SPDX-License-Identifier: GPL-2.0 */
/*
* arm64 KFENCE support.
*
* Copyright (C) 2020, Google LLC.
*/
#ifndef __ASM_KFENCE_H
#define __ASM_KFENCE_H
#include <asm/set_memory.h>
static inline bool arch_kfence_init_pool(void) { return true; }
static inline bool kfence_protect_page(unsigned long addr, bool protect)
{
set_memory_valid(addr, 1, !protect);
return true;
}
#ifdef CONFIG_KFENCE
extern bool kfence_early_init;
static inline bool arm64_kfence_can_set_direct_map(void)
{
return !kfence_early_init;
}
#else /* CONFIG_KFENCE */
static inline bool arm64_kfence_can_set_direct_map(void) { return false; }
#endif /* CONFIG_KFENCE */
#endif /* __ASM_KFENCE_H */