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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/xen/xen-ops.h
1 #ifndef INCLUDE_XEN_OPS_H
2 #define INCLUDE_XEN_OPS_H
4 #include <linux/percpu.h>
5 #include <linux/notifier.h>
7 #include <asm/xen/interface.h>
8 #include <xen/interface/vcpu.h>
10 DECLARE_PER_CPU(struct vcpu_info
*, xen_vcpu
);
12 DECLARE_PER_CPU(uint32_t, xen_vcpu_id
);
13 static inline uint32_t xen_vcpu_nr(int cpu
)
15 return per_cpu(xen_vcpu_id
, cpu
);
18 void xen_arch_pre_suspend(void);
19 void xen_arch_post_suspend(int suspend_cancelled
);
21 void xen_timer_resume(void);
22 void xen_arch_resume(void);
23 void xen_arch_suspend(void);
25 void xen_reboot(int reason
);
27 void xen_resume_notifier_register(struct notifier_block
*nb
);
28 void xen_resume_notifier_unregister(struct notifier_block
*nb
);
30 bool xen_vcpu_stolen(int vcpu
);
31 void xen_setup_runstate_info(int cpu
);
32 void xen_time_setup_guest(void);
33 void xen_get_runstate_snapshot(struct vcpu_runstate_info
*res
);
34 u64
xen_steal_clock(int cpu
);
36 int xen_setup_shutdown_event(void);
38 extern unsigned long *xen_contiguous_bitmap
;
41 int xen_create_contiguous_region(phys_addr_t pstart
, unsigned int order
,
42 unsigned int address_bits
,
43 dma_addr_t
*dma_handle
);
45 void xen_destroy_contiguous_region(phys_addr_t pstart
, unsigned int order
);
47 static inline int xen_create_contiguous_region(phys_addr_t pstart
,
49 unsigned int address_bits
,
50 dma_addr_t
*dma_handle
)
55 static inline void xen_destroy_contiguous_region(phys_addr_t pstart
,
56 unsigned int order
) { }
59 struct vm_area_struct
;
62 * xen_remap_domain_gfn_array() - map an array of foreign frames
63 * @vma: VMA to map the pages into
64 * @addr: Address at which to map the pages
65 * @gfn: Array of GFNs to map
66 * @nr: Number entries in the GFN array
67 * @err_ptr: Returns per-GFN error status.
68 * @prot: page protection mask
69 * @domid: Domain owning the pages
70 * @pages: Array of pages if this domain has an auto-translated physmap
72 * @gfn and @err_ptr may point to the same buffer, the GFNs will be
73 * overwritten by the error codes after they are mapped.
75 * Returns the number of successfully mapped frames, or a -ve error
78 int xen_remap_domain_gfn_array(struct vm_area_struct
*vma
,
80 xen_pfn_t
*gfn
, int nr
,
81 int *err_ptr
, pgprot_t prot
,
85 /* xen_remap_domain_gfn_range() - map a range of foreign frames
86 * @vma: VMA to map the pages into
87 * @addr: Address at which to map the pages
88 * @gfn: First GFN to map.
89 * @nr: Number frames to map
90 * @prot: page protection mask
91 * @domid: Domain owning the pages
92 * @pages: Array of pages if this domain has an auto-translated physmap
94 * Returns the number of successfully mapped frames, or a -ve error
97 int xen_remap_domain_gfn_range(struct vm_area_struct
*vma
,
99 xen_pfn_t gfn
, int nr
,
100 pgprot_t prot
, unsigned domid
,
101 struct page
**pages
);
102 int xen_unmap_domain_gfn_range(struct vm_area_struct
*vma
,
103 int numpgs
, struct page
**pages
);
104 int xen_xlate_remap_gfn_array(struct vm_area_struct
*vma
,
106 xen_pfn_t
*gfn
, int nr
,
107 int *err_ptr
, pgprot_t prot
,
109 struct page
**pages
);
110 int xen_xlate_unmap_gfn_range(struct vm_area_struct
*vma
,
111 int nr
, struct page
**pages
);
112 int xen_xlate_map_ballooned_pages(xen_pfn_t
**pfns
, void **vaddr
,
113 unsigned long nr_grant_frames
);
115 bool xen_running_on_version_or_later(unsigned int major
, unsigned int minor
);
117 efi_status_t
xen_efi_get_time(efi_time_t
*tm
, efi_time_cap_t
*tc
);
118 efi_status_t
xen_efi_set_time(efi_time_t
*tm
);
119 efi_status_t
xen_efi_get_wakeup_time(efi_bool_t
*enabled
, efi_bool_t
*pending
,
121 efi_status_t
xen_efi_set_wakeup_time(efi_bool_t enabled
, efi_time_t
*tm
);
122 efi_status_t
xen_efi_get_variable(efi_char16_t
*name
, efi_guid_t
*vendor
,
123 u32
*attr
, unsigned long *data_size
,
125 efi_status_t
xen_efi_get_next_variable(unsigned long *name_size
,
126 efi_char16_t
*name
, efi_guid_t
*vendor
);
127 efi_status_t
xen_efi_set_variable(efi_char16_t
*name
, efi_guid_t
*vendor
,
128 u32 attr
, unsigned long data_size
,
130 efi_status_t
xen_efi_query_variable_info(u32 attr
, u64
*storage_space
,
131 u64
*remaining_space
,
132 u64
*max_variable_size
);
133 efi_status_t
xen_efi_get_next_high_mono_count(u32
*count
);
134 efi_status_t
xen_efi_update_capsule(efi_capsule_header_t
**capsules
,
135 unsigned long count
, unsigned long sg_list
);
136 efi_status_t
xen_efi_query_capsule_caps(efi_capsule_header_t
**capsules
,
137 unsigned long count
, u64
*max_size
,
139 void xen_efi_reset_system(int reset_type
, efi_status_t status
,
140 unsigned long data_size
, efi_char16_t
*data
);
143 #ifdef CONFIG_PREEMPT
145 static inline void xen_preemptible_hcall_begin(void)
149 static inline void xen_preemptible_hcall_end(void)
155 DECLARE_PER_CPU(bool, xen_in_preemptible_hcall
);
157 static inline void xen_preemptible_hcall_begin(void)
159 __this_cpu_write(xen_in_preemptible_hcall
, true);
162 static inline void xen_preemptible_hcall_end(void)
164 __this_cpu_write(xen_in_preemptible_hcall
, false);
167 #endif /* CONFIG_PREEMPT */
169 #endif /* INCLUDE_XEN_OPS_H */