1 #ifndef _XEN_MMU_H 2 3 #include <linux/linkage.h> 4 #include <asm/page.h> 5 6 enum pt_level { 7 PT_PGD, 8 PT_PUD, 9 PT_PMD, 10 PT_PTE 11 }; 12 13 14 void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); 15 16 17 void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); 18 void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); 19 void xen_exit_mmap(struct mm_struct *mm); 20 21 pteval_t xen_pte_val(pte_t); 22 pmdval_t xen_pmd_val(pmd_t); 23 pgdval_t xen_pgd_val(pgd_t); 24 25 pte_t xen_make_pte(pteval_t); 26 pmd_t xen_make_pmd(pmdval_t); 27 pgd_t xen_make_pgd(pgdval_t); 28 29 void xen_set_pte(pte_t *ptep, pte_t pteval); 30 void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, 31 pte_t *ptep, pte_t pteval); 32 33 #ifdef CONFIG_X86_PAE 34 void xen_set_pte_atomic(pte_t *ptep, pte_t pte); 35 void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 36 void xen_pmd_clear(pmd_t *pmdp); 37 #endif /* CONFIG_X86_PAE */ 38 39 void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); 40 void xen_set_pud(pud_t *ptr, pud_t val); 41 void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval); 42 void xen_set_pud_hyper(pud_t *ptr, pud_t val); 43 44 #if PAGETABLE_LEVELS == 4 45 pudval_t xen_pud_val(pud_t pud); 46 pud_t xen_make_pud(pudval_t pudval); 47 void xen_set_pgd(pgd_t *pgdp, pgd_t pgd); 48 void xen_set_pgd_hyper(pgd_t *pgdp, pgd_t pgd); 49 #endif 50 51 pgd_t *xen_get_user_pgd(pgd_t *pgd); 52 53 pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 54 void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, 55 pte_t *ptep, pte_t pte); 56 57 #endif /* _XEN_MMU_H */ 58