xref: /openbmc/linux/arch/x86/xen/mmu.h (revision 12eb4683)
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 pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
19 void  xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
20 				  pte_t *ptep, pte_t pte);
21 
22 unsigned long xen_read_cr2_direct(void);
23 
24 extern void xen_init_mmu_ops(void);
25 extern void xen_hvm_init_mmu_ops(void);
26 #endif	/* _XEN_MMU_H */
27