tegrakernel/kernel/kernel-4.9/arch/x86/mm/kmemcheck/pte.c

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2022-02-16 09:13:02 -06:00
#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;
}