Commit c2f71ee2 authored by Andi Kleen's avatar Andi Kleen Committed by Ingo Molnar

x86: add gbpages support to lookup_address

[ tglx@linutronix.de: fix bootup crash on sparse mappings. ]
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 61e19a34
...@@ -209,6 +209,11 @@ pte_t *lookup_address(unsigned long address, int *level) ...@@ -209,6 +209,11 @@ pte_t *lookup_address(unsigned long address, int *level)
pud = pud_offset(pgd, address); pud = pud_offset(pgd, address);
if (pud_none(*pud)) if (pud_none(*pud))
return NULL; return NULL;
*level = PG_LEVEL_1G;
if (pud_large(*pud) || !pud_present(*pud))
return (pte_t *)pud;
pmd = pmd_offset(pud, address); pmd = pmd_offset(pud, address);
if (pmd_none(*pmd)) if (pmd_none(*pmd))
return NULL; return NULL;
......
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