1#ifndef INCLUDE_XEN_OPS_H
 2#define INCLUDE_XEN_OPS_H
 3
 4#include <linux/percpu.h>
 
 
 
 
 5
 6DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
 7
 8void xen_arch_pre_suspend(void);
 9void xen_arch_post_suspend(int suspend_cancelled);
10void xen_arch_hvm_post_suspend(int suspend_cancelled);
11
12void xen_mm_pin_all(void);
13void xen_mm_unpin_all(void);
14
15void xen_timer_resume(void);
16void xen_arch_resume(void);
 
17
18int xen_setup_shutdown_event(void);
 
19
20extern unsigned long *xen_contiguous_bitmap;
21int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
22				unsigned int address_bits);
23
24void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
25
26int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
27			       unsigned long addr,
28			       unsigned long mfn, int nr,
29			       pgprot_t prot, unsigned domid);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
30
31#endif /* INCLUDE_XEN_OPS_H */

  1#ifndef INCLUDE_XEN_OPS_H
  2#define INCLUDE_XEN_OPS_H
  3
  4#include <linux/percpu.h>
  5#include <linux/notifier.h>
  6#include <linux/efi.h>
  7#include <asm/xen/interface.h>
  8#include <xen/interface/vcpu.h>
  9
 10DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
 11
 12void xen_arch_pre_suspend(void);
 13void xen_arch_post_suspend(int suspend_cancelled);
 
 
 
 
 14
 15void xen_timer_resume(void);
 16void xen_arch_resume(void);
 17void xen_arch_suspend(void);
 18
 19void xen_resume_notifier_register(struct notifier_block *nb);
 20void xen_resume_notifier_unregister(struct notifier_block *nb);
 21
 22bool xen_vcpu_stolen(int vcpu);
 23void xen_setup_runstate_info(int cpu);
 24void xen_get_runstate_snapshot(struct vcpu_runstate_info *res);
 25
 26int xen_setup_shutdown_event(void);
 27
 28extern unsigned long *xen_contiguous_bitmap;
 29int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 30				unsigned int address_bits,
 31				dma_addr_t *dma_handle);
 32
 33void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
 34
 35struct vm_area_struct;
 36
 37/*
 38 * xen_remap_domain_gfn_array() - map an array of foreign frames
 39 * @vma:     VMA to map the pages into
 40 * @addr:    Address at which to map the pages
 41 * @gfn:     Array of GFNs to map
 42 * @nr:      Number entries in the GFN array
 43 * @err_ptr: Returns per-GFN error status.
 44 * @prot:    page protection mask
 45 * @domid:   Domain owning the pages
 46 * @pages:   Array of pages if this domain has an auto-translated physmap
 47 *
 48 * @gfn and @err_ptr may point to the same buffer, the GFNs will be
 49 * overwritten by the error codes after they are mapped.
 50 *
 51 * Returns the number of successfully mapped frames, or a -ve error
 52 * code.
 53 */
 54int xen_remap_domain_gfn_array(struct vm_area_struct *vma,
 55			       unsigned long addr,
 56			       xen_pfn_t *gfn, int nr,
 57			       int *err_ptr, pgprot_t prot,
 58			       unsigned domid,
 59			       struct page **pages);
 60
 61/* xen_remap_domain_gfn_range() - map a range of foreign frames
 62 * @vma:     VMA to map the pages into
 63 * @addr:    Address at which to map the pages
 64 * @gfn:     First GFN to map.
 65 * @nr:      Number frames to map
 66 * @prot:    page protection mask
 67 * @domid:   Domain owning the pages
 68 * @pages:   Array of pages if this domain has an auto-translated physmap
 69 *
 70 * Returns the number of successfully mapped frames, or a -ve error
 71 * code.
 72 */
 73int xen_remap_domain_gfn_range(struct vm_area_struct *vma,
 74			       unsigned long addr,
 75			       xen_pfn_t gfn, int nr,
 76			       pgprot_t prot, unsigned domid,
 77			       struct page **pages);
 78int xen_unmap_domain_gfn_range(struct vm_area_struct *vma,
 79			       int numpgs, struct page **pages);
 80int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
 81			      unsigned long addr,
 82			      xen_pfn_t *gfn, int nr,
 83			      int *err_ptr, pgprot_t prot,
 84			      unsigned domid,
 85			      struct page **pages);
 86int xen_xlate_unmap_gfn_range(struct vm_area_struct *vma,
 87			      int nr, struct page **pages);
 88
 89bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
 90
 91#ifdef CONFIG_XEN_EFI
 92extern efi_system_table_t *xen_efi_probe(void);
 93#else
 94static inline efi_system_table_t __init *xen_efi_probe(void)
 95{
 96	return NULL;
 97}
 98#endif
 99
100#ifdef CONFIG_PREEMPT
101
102static inline void xen_preemptible_hcall_begin(void)
103{
104}
105
106static inline void xen_preemptible_hcall_end(void)
107{
108}
109
110#else
111
112DECLARE_PER_CPU(bool, xen_in_preemptible_hcall);
113
114static inline void xen_preemptible_hcall_begin(void)
115{
116	__this_cpu_write(xen_in_preemptible_hcall, true);
117}
118
119static inline void xen_preemptible_hcall_end(void)
120{
121	__this_cpu_write(xen_in_preemptible_hcall, false);
122}
123
124#endif /* CONFIG_PREEMPT */
125
126#endif /* INCLUDE_XEN_OPS_H */