Commit | Line | Data |
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e04d0d07 IY |
1 | #ifndef INCLUDE_XEN_OPS_H |
2 | #define INCLUDE_XEN_OPS_H | |
3 | ||
4 | #include <linux/percpu.h> | |
cd979883 | 5 | #include <linux/notifier.h> |
be81c8a1 | 6 | #include <linux/efi.h> |
7892f692 | 7 | #include <asm/xen/interface.h> |
e04d0d07 IY |
8 | |
9 | DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu); | |
10 | ||
03c8142b IC |
11 | void xen_arch_pre_suspend(void); |
12 | void xen_arch_post_suspend(int suspend_cancelled); | |
0e91398f | 13 | |
ad55db9f IY |
14 | void xen_timer_resume(void); |
15 | void xen_arch_resume(void); | |
2b953a5e | 16 | void xen_arch_suspend(void); |
ad55db9f | 17 | |
cd979883 SG |
18 | void xen_resume_notifier_register(struct notifier_block *nb); |
19 | void xen_resume_notifier_unregister(struct notifier_block *nb); | |
20 | ||
016b6f5f SS |
21 | int xen_setup_shutdown_event(void); |
22 | ||
08bbc9da | 23 | extern unsigned long *xen_contiguous_bitmap; |
1b65c4e5 | 24 | int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, |
69908907 SS |
25 | unsigned int address_bits, |
26 | dma_addr_t *dma_handle); | |
08bbc9da | 27 | |
1b65c4e5 | 28 | void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order); |
08bbc9da | 29 | |
c140d879 | 30 | struct vm_area_struct; |
4e8c0c8c DV |
31 | |
32 | /* | |
a13d7201 | 33 | * xen_remap_domain_gfn_array() - map an array of foreign frames |
4e8c0c8c DV |
34 | * @vma: VMA to map the pages into |
35 | * @addr: Address at which to map the pages | |
36 | * @gfn: Array of GFNs to map | |
37 | * @nr: Number entries in the GFN array | |
38 | * @err_ptr: Returns per-GFN error status. | |
39 | * @prot: page protection mask | |
40 | * @domid: Domain owning the pages | |
41 | * @pages: Array of pages if this domain has an auto-translated physmap | |
42 | * | |
43 | * @gfn and @err_ptr may point to the same buffer, the GFNs will be | |
44 | * overwritten by the error codes after they are mapped. | |
45 | * | |
46 | * Returns the number of successfully mapped frames, or a -ve error | |
47 | * code. | |
48 | */ | |
a13d7201 | 49 | int xen_remap_domain_gfn_array(struct vm_area_struct *vma, |
4e8c0c8c DV |
50 | unsigned long addr, |
51 | xen_pfn_t *gfn, int nr, | |
52 | int *err_ptr, pgprot_t prot, | |
53 | unsigned domid, | |
54 | struct page **pages); | |
55 | ||
a13d7201 | 56 | /* xen_remap_domain_gfn_range() - map a range of foreign frames |
4e8c0c8c DV |
57 | * @vma: VMA to map the pages into |
58 | * @addr: Address at which to map the pages | |
59 | * @gfn: First GFN to map. | |
60 | * @nr: Number frames to map | |
61 | * @prot: page protection mask | |
62 | * @domid: Domain owning the pages | |
63 | * @pages: Array of pages if this domain has an auto-translated physmap | |
64 | * | |
65 | * Returns the number of successfully mapped frames, or a -ve error | |
66 | * code. | |
67 | */ | |
a13d7201 | 68 | int xen_remap_domain_gfn_range(struct vm_area_struct *vma, |
de1ef206 | 69 | unsigned long addr, |
4e8c0c8c | 70 | xen_pfn_t gfn, int nr, |
9a032e39 IC |
71 | pgprot_t prot, unsigned domid, |
72 | struct page **pages); | |
a13d7201 | 73 | int xen_unmap_domain_gfn_range(struct vm_area_struct *vma, |
9a032e39 | 74 | int numpgs, struct page **pages); |
4e8c0c8c | 75 | int xen_xlate_remap_gfn_array(struct vm_area_struct *vma, |
628c28ee | 76 | unsigned long addr, |
4e8c0c8c DV |
77 | xen_pfn_t *gfn, int nr, |
78 | int *err_ptr, pgprot_t prot, | |
628c28ee DV |
79 | unsigned domid, |
80 | struct page **pages); | |
81 | int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma, | |
82 | int nr, struct page **pages); | |
de1ef206 | 83 | |
394b40f6 | 84 | bool xen_running_on_version_or_later(unsigned int major, unsigned int minor); |
be81c8a1 DK |
85 | |
86 | #ifdef CONFIG_XEN_EFI | |
87 | extern efi_system_table_t *xen_efi_probe(void); | |
88 | #else | |
57f7138d | 89 | static inline efi_system_table_t __init *xen_efi_probe(void) |
be81c8a1 DK |
90 | { |
91 | return NULL; | |
92 | } | |
93 | #endif | |
94 | ||
fdfd811d DV |
95 | #ifdef CONFIG_PREEMPT |
96 | ||
97 | static inline void xen_preemptible_hcall_begin(void) | |
98 | { | |
99 | } | |
100 | ||
101 | static inline void xen_preemptible_hcall_end(void) | |
102 | { | |
103 | } | |
104 | ||
105 | #else | |
106 | ||
107 | DECLARE_PER_CPU(bool, xen_in_preemptible_hcall); | |
108 | ||
109 | static inline void xen_preemptible_hcall_begin(void) | |
110 | { | |
111 | __this_cpu_write(xen_in_preemptible_hcall, true); | |
112 | } | |
113 | ||
114 | static inline void xen_preemptible_hcall_end(void) | |
115 | { | |
116 | __this_cpu_write(xen_in_preemptible_hcall, false); | |
117 | } | |
118 | ||
119 | #endif /* CONFIG_PREEMPT */ | |
120 | ||
e04d0d07 | 121 | #endif /* INCLUDE_XEN_OPS_H */ |