5113f6f70
 김현기
kernel add
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
#ifndef INCLUDE_XEN_OPS_H
#define INCLUDE_XEN_OPS_H
#include <linux/percpu.h>
#include <linux/notifier.h>
#include <linux/efi.h>
#include <asm/xen/interface.h>
DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
void xen_arch_pre_suspend(void);
void xen_arch_post_suspend(int suspend_cancelled);
void xen_timer_resume(void);
void xen_arch_resume(void);
void xen_arch_suspend(void);
void xen_resume_notifier_register(struct notifier_block *nb);
void xen_resume_notifier_unregister(struct notifier_block *nb);
int xen_setup_shutdown_event(void);
extern unsigned long *xen_contiguous_bitmap;
int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
unsigned int address_bits,
dma_addr_t *dma_handle);
void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
struct vm_area_struct;
/*
* xen_remap_domain_gfn_array() - map an array of foreign frames
* @vma: VMA to map the pages into
* @addr: Address at which to map the pages
* @gfn: Array of GFNs to map
* @nr: Number entries in the GFN array
* @err_ptr: Returns per-GFN error status.
* @prot: page protection mask
* @domid: Domain owning the pages
* @pages: Array of pages if this domain has an auto-translated physmap
*
* @gfn and @err_ptr may point to the same buffer, the GFNs will be
* overwritten by the error codes after they are mapped.
*
* Returns the number of successfully mapped frames, or a -ve error
* code.
*/
int xen_remap_domain_gfn_array(struct vm_area_struct *vma,
unsigned long addr,
xen_pfn_t *gfn, int nr,
int *err_ptr, pgprot_t prot,
unsigned domid,
struct page **pages);
/* xen_remap_domain_gfn_range() - map a range of foreign frames
* @vma: VMA to map the pages into
* @addr: Address at which to map the pages
* @gfn: First GFN to map.
* @nr: Number frames to map
* @prot: page protection mask
* @domid: Domain owning the pages
* @pages: Array of pages if this domain has an auto-translated physmap
*
* Returns the number of successfully mapped frames, or a -ve error
* code.
*/
int xen_remap_domain_gfn_range(struct vm_area_struct *vma,
unsigned long addr,
xen_pfn_t gfn, int nr,
pgprot_t prot, unsigned domid,
struct page **pages);
int xen_unmap_domain_gfn_range(struct vm_area_struct *vma,
int numpgs, struct page **pages);
int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
unsigned long addr,
xen_pfn_t *gfn, int nr,
int *err_ptr, pgprot_t prot,
unsigned domid,
struct page **pages);
int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma,
int nr, struct page **pages);
bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
#ifdef CONFIG_XEN_EFI
extern efi_system_table_t *xen_efi_probe(void);
#else
static inline efi_system_table_t __init *xen_efi_probe(void)
{
return NULL;
}
#endif
#ifdef CONFIG_PREEMPT
static inline void xen_preemptible_hcall_begin(void)
{
}
static inline void xen_preemptible_hcall_end(void)
{
}
#else
DECLARE_PER_CPU(bool, xen_in_preemptible_hcall);
static inline void xen_preemptible_hcall_begin(void)
{
__this_cpu_write(xen_in_preemptible_hcall, true);
}
static inline void xen_preemptible_hcall_end(void)
{
__this_cpu_write(xen_in_preemptible_hcall, false);
}
#endif /* CONFIG_PREEMPT */
#endif /* INCLUDE_XEN_OPS_H */
|