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xen-ops.h
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1 #ifndef XEN_OPS_H
2 #define XEN_OPS_H
3 
4 #include <linux/init.h>
5 #include <linux/clocksource.h>
6 #include <linux/irqreturn.h>
7 #include <xen/xen-ops.h>
8 
9 /* These are code, but not functions. Defined in entry.S */
10 extern const char xen_hypervisor_callback[];
11 extern const char xen_failsafe_callback[];
12 
13 extern void *xen_initial_gdt;
14 
15 struct trap_info;
16 void xen_copy_trap_info(struct trap_info *traps);
17 
18 DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
19 DECLARE_PER_CPU(unsigned long, xen_cr3);
20 DECLARE_PER_CPU(unsigned long, xen_current_cr3);
21 
22 extern struct start_info *xen_start_info;
24 extern struct shared_info *HYPERVISOR_shared_info;
25 
26 void xen_setup_mfn_list_list(void);
27 void xen_setup_shared_info(void);
28 void xen_build_mfn_list_list(void);
30 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
31 void xen_reserve_top(void);
32 extern unsigned long xen_max_p2m_pfn;
33 
34 void xen_set_pat(u64);
35 
36 char * __init xen_memory_setup(void);
37 void __init xen_arch_setup(void);
38 void xen_enable_sysenter(void);
39 void xen_enable_syscall(void);
40 void xen_vcpu_restore(void);
41 
42 void xen_callback_vector(void);
43 void xen_hvm_init_shared_info(void);
45 
47 unsigned long __init xen_revector_p2m_tree(void);
48 
49 void xen_init_irq_ops(void);
50 void xen_setup_timer(int cpu);
52 void xen_teardown_timer(int cpu);
54 void xen_setup_cpu_clockevents(void);
55 void __init xen_init_time_ops(void);
56 void __init xen_hvm_init_time_ops(void);
57 
58 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
59 
60 bool xen_vcpu_stolen(int vcpu);
61 
63 
64 #ifdef CONFIG_SMP
65 void xen_smp_init(void);
66 void __init xen_hvm_smp_init(void);
67 
69 #else
70 static inline void xen_smp_init(void) {}
71 static inline void xen_hvm_smp_init(void) {}
72 #endif
73 
74 #ifdef CONFIG_PARAVIRT_SPINLOCKS
75 void __init xen_init_spinlocks(void);
77 void xen_uninit_lock_cpu(int cpu);
78 #else
79 static inline void xen_init_spinlocks(void)
80 {
81 }
82 static inline void xen_init_lock_cpu(int cpu)
83 {
84 }
85 static inline void xen_uninit_lock_cpu(int cpu)
86 {
87 }
88 #endif
89 
91 
92 #ifdef CONFIG_XEN_DOM0
93 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
94 void __init xen_init_apic(void);
95 #else
96 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
97  size_t size)
98 {
99 }
100 static inline void __init xen_init_apic(void)
101 {
102 }
103 #endif
104 
105 /* Declare an asm function, along with symbols needed to make it
106  inlineable */
107 #define DECL_ASM(ret, name, ...) \
108  ret name(__VA_ARGS__); \
109  extern char name##_end[]; \
110  extern char name##_reloc[] \
111 
112 DECL_ASM(void, xen_irq_enable_direct, void);
113 DECL_ASM(void, xen_irq_disable_direct, void);
114 DECL_ASM(unsigned long, xen_save_fl_direct, void);
115 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
116 
117 /* These are not functions, and cannot be called normally */
118 void xen_iret(void);
119 void xen_sysexit(void);
120 void xen_sysret32(void);
121 void xen_sysret64(void);
122 void xen_adjust_exception_frame(void);
123 
124 extern int xen_panic_handler_init(void);
125 
126 #endif /* XEN_OPS_H */