diff options
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index e62cbdd4e2d..5c3305e0507 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -144,22 +144,13 @@ static __init void *spp_getpage(void) } void -set_pte_vaddr(unsigned long vaddr, pte_t new_pte) +set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte) { - pgd_t *pgd; pud_t *pud; pmd_t *pmd; pte_t *pte; - pr_debug("set_pte_vaddr %lx to %lx\n", vaddr, native_pte_val(new_pte)); - - pgd = pgd_offset_k(vaddr); - if (pgd_none(*pgd)) { - printk(KERN_ERR - "PGD FIXMAP MISSING, it should be setup in head.S!\n"); - return; - } - pud = pud_offset(pgd, vaddr); + pud = pud_page + pud_index(vaddr); if (pud_none(*pud)) { pmd = (pmd_t *) spp_getpage(); pud_populate(&init_mm, pud, pmd); @@ -192,6 +183,24 @@ set_pte_vaddr(unsigned long vaddr, pte_t new_pte) __flush_tlb_one(vaddr); } +void +set_pte_vaddr(unsigned long vaddr, pte_t pteval) +{ + pgd_t *pgd; + pud_t *pud_page; + + pr_debug("set_pte_vaddr %lx to %lx\n", vaddr, native_pte_val(pteval)); + + pgd = pgd_offset_k(vaddr); + if (pgd_none(*pgd)) { + printk(KERN_ERR + "PGD FIXMAP MISSING, it should be setup in head.S!\n"); + return; + } + pud_page = (pud_t*)pgd_page_vaddr(*pgd); + set_pte_vaddr_pud(pud_page, vaddr, pteval); +} + /* * The head.S code sets up the kernel high mapping: * |