1#ifndef _XEN_MMU_H 2 3#include <linux/linkage.h> 4#include <asm/page.h> 5 6enum pt_level { 7 PT_PGD, 8 PT_PUD, 9 PT_PMD, 10 PT_PTE 11}; 12 13 14bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn); 15bool install_p2mtop_page(unsigned long pfn, unsigned long *p); 16 17void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags); 18 19 20void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); 21void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); 22void xen_exit_mmap(struct mm_struct *mm); 23 24pteval_t xen_pte_val(pte_t); 25pmdval_t xen_pmd_val(pmd_t); 26pgdval_t xen_pgd_val(pgd_t); 27 28pte_t xen_make_pte(pteval_t); 29pmd_t xen_make_pmd(pmdval_t); 30pgd_t xen_make_pgd(pgdval_t); 31 32void xen_set_pte(pte_t *ptep, pte_t pteval); 33void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, 34 pte_t *ptep, pte_t pteval); 35 36#ifdef CONFIG_X86_PAE 37void xen_set_pte_atomic(pte_t *ptep, pte_t pte); 38void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 39void xen_pmd_clear(pmd_t *pmdp); 40#endif /* CONFIG_X86_PAE */ 41 42void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); 43void xen_set_pud(pud_t *ptr, pud_t val); 44void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval); 45void xen_set_pud_hyper(pud_t *ptr, pud_t val); 46 47#if PAGETABLE_LEVELS == 4 48pudval_t xen_pud_val(pud_t pud); 49pud_t xen_make_pud(pudval_t pudval); 50void xen_set_pgd(pgd_t *pgdp, pgd_t pgd); 51void xen_set_pgd_hyper(pgd_t *pgdp, pgd_t pgd); 52#endif 53 54pgd_t *xen_get_user_pgd(pgd_t *pgd); 55 56pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep); 57void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, 58 pte_t *ptep, pte_t pte); 59 60unsigned long xen_read_cr2_direct(void); 61 62extern void xen_init_mmu_ops(void); 63extern void xen_hvm_init_mmu_ops(void); 64#endif /* _XEN_MMU_H */ 65