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 bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn); 15 bool install_p2mtop_page(unsigned long pfn, unsigned long *p); 16 17 void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); 18 19 20 void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); 21 void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); 22 void xen_exit_mmap(struct mm_struct *mm); 23 24 pteval_t xen_pte_val(pte_t); 25 pmdval_t xen_pmd_val(pmd_t); 26 pgdval_t xen_pgd_val(pgd_t); 27 28 pte_t xen_make_pte(pteval_t); 29 pmd_t xen_make_pmd(pmdval_t); 30 pgd_t xen_make_pgd(pgdval_t); 31 32 void xen_set_pte(pte_t *ptep, pte_t pteval); 33 void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, 34 pte_t *ptep, pte_t pteval); 35 36 #ifdef CONFIG_X86_PAE 37 void xen_set_pte_atomic(pte_t *ptep, pte_t pte); 38 void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 39 void xen_pmd_clear(pmd_t *pmdp); 40 #endif /* CONFIG_X86_PAE */ 41 42 void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); 43 void xen_set_pud(pud_t *ptr, pud_t val); 44 void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval); 45 void xen_set_pud_hyper(pud_t *ptr, pud_t val); 46 47 #if PAGETABLE_LEVELS == 4 48 pudval_t xen_pud_val(pud_t pud); 49 pud_t xen_make_pud(pudval_t pudval); 50 void xen_set_pgd(pgd_t *pgdp, pgd_t pgd); 51 void xen_set_pgd_hyper(pgd_t *pgdp, pgd_t pgd); 52 #endif 53 54 pgd_t *xen_get_user_pgd(pgd_t *pgd); 55 56 pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 57 void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, 58 pte_t *ptep, pte_t pte); 59 60 unsigned long xen_read_cr2_direct(void); 61 62 extern void xen_init_mmu_ops(void); 63 #endif /* _XEN_MMU_H */ 64