linux/arch/x86/include/asm/kfence.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * x86 KFENCE support.
 *
 * Copyright (C) 2020, Google LLC.
 */

#ifndef _ASM_X86_KFENCE_H
#define _ASM_X86_KFENCE_H

#ifndef MODULE

#include <linux/bug.h>
#include <linux/kfence.h>

#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/set_memory.h>
#include <asm/tlbflush.h>

/* Force 4K pages for __kfence_pool. */
static inline bool arch_kfence_init_pool(void)
{ … }

/* Protect the given page and flush TLB. */
static inline bool kfence_protect_page(unsigned long addr, bool protect)
{ … }

#endif /* !MODULE */

#endif /* _ASM_X86_KFENCE_H */