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