kvm: vmx: handle invvpid vm exit gracefully
[pandora-kernel.git] / arch / x86 / include / asm / hugetlb.h
1 #ifndef _ASM_X86_HUGETLB_H
2 #define _ASM_X86_HUGETLB_H
3
4 #include <asm/page.h>
5
6
7 static inline int is_hugepage_only_range(struct mm_struct *mm,
8                                          unsigned long addr,
9                                          unsigned long len) {
10         return 0;
11 }
12
13 /*
14  * If the arch doesn't supply something else, assume that hugepage
15  * size aligned regions are ok without further preparation.
16  */
17 static inline int prepare_hugepage_range(struct file *file,
18                         unsigned long addr, unsigned long len)
19 {
20         struct hstate *h = hstate_file(file);
21         if (len & ~huge_page_mask(h))
22                 return -EINVAL;
23         if (addr & ~huge_page_mask(h))
24                 return -EINVAL;
25         return 0;
26 }
27
28 static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
29 }
30
31 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
32                                           unsigned long addr, unsigned long end,
33                                           unsigned long floor,
34                                           unsigned long ceiling)
35 {
36         free_pgd_range(tlb, addr, end, floor, ceiling);
37 }
38
39 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
40                                    pte_t *ptep, pte_t pte)
41 {
42         set_pte_at(mm, addr, ptep, pte);
43 }
44
45 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
46                                             unsigned long addr, pte_t *ptep)
47 {
48         return ptep_get_and_clear(mm, addr, ptep);
49 }
50
51 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
52                                          unsigned long addr, pte_t *ptep)
53 {
54         ptep_clear_flush(vma, addr, ptep);
55 }
56
57 static inline int huge_pte_none(pte_t pte)
58 {
59         return pte_none(pte);
60 }
61
62 static inline pte_t huge_pte_wrprotect(pte_t pte)
63 {
64         return pte_wrprotect(pte);
65 }
66
67 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
68                                            unsigned long addr, pte_t *ptep)
69 {
70         ptep_set_wrprotect(mm, addr, ptep);
71 }
72
73 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
74                                              unsigned long addr, pte_t *ptep,
75                                              pte_t pte, int dirty)
76 {
77         return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
78 }
79
80 static inline pte_t huge_ptep_get(pte_t *ptep)
81 {
82         return *ptep;
83 }
84
85 static inline int arch_prepare_hugepage(struct page *page)
86 {
87         return 0;
88 }
89
90 static inline void arch_release_hugepage(struct page *page)
91 {
92 }
93
94 #endif /* _ASM_X86_HUGETLB_H */