arch/x86/mm/kmemcheck/pte.c


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// SPDX-License-Identifier: GPL-2.0
#include <linux/mm.h>

#include <asm/pgtable.h>

#include "pte.h"

pte_t *kmemcheck_pte_lookup(unsigned long address)
{
	pte_t *pte;
	unsigned int level;

	pte = lookup_address(address, &level);
	if (!pte)
		return NULL;
	if (level != PG_LEVEL_4K)
		return NULL;
	if (!pte_hidden(*pte))
		return NULL;

	return pte;
}