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;
23 extern struct shared_info xen_dummy_shared_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);
29 void xen_setup_machphys_mapping(void);
30 pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
31 void xen_ident_map_ISA(void);
32 void xen_reserve_top(void);
33 extern unsigned long xen_max_p2m_pfn;
34
35 void xen_set_pat(u64);
36
37 char * __init xen_memory_setup(void);
38 void __init xen_arch_setup(void);
39 void __init xen_init_IRQ(void);
40 void xen_enable_sysenter(void);
41 void xen_enable_syscall(void);
42 void xen_vcpu_restore(void);
43
44 void xen_callback_vector(void);
45 void xen_hvm_init_shared_info(void);
46 void xen_unplug_emulated_devices(void);
47
48 void __init xen_build_dynamic_phys_to_machine(void);
49
50 void xen_init_irq_ops(void);
51 void xen_setup_timer(int cpu);
52 void xen_setup_runstate_info(int cpu);
53 void xen_teardown_timer(int cpu);
54 cycle_t xen_clocksource_read(void);
55 void xen_setup_cpu_clockevents(void);
56 void __init xen_init_time_ops(void);
57 void __init xen_hvm_init_time_ops(void);
58
59 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
60
61 bool xen_vcpu_stolen(int vcpu);
62
63 void xen_setup_vcpu_info_placement(void);
64
65 #ifdef CONFIG_SMP
66 void xen_smp_init(void);
67 void __init xen_hvm_smp_init(void);
68
69 extern cpumask_var_t xen_cpu_initialized_map;
70 #else
xen_smp_init(void)71 static inline void xen_smp_init(void) {}
xen_hvm_smp_init(void)72 static inline void xen_hvm_smp_init(void) {}
73 #endif
74
75 #ifdef CONFIG_PARAVIRT_SPINLOCKS
76 void __init xen_init_spinlocks(void);
77 __cpuinit void xen_init_lock_cpu(int cpu);
78 void xen_uninit_lock_cpu(int cpu);
79 #else
xen_init_spinlocks(void)80 static inline void xen_init_spinlocks(void)
81 {
82 }
xen_init_lock_cpu(int cpu)83 static inline void xen_init_lock_cpu(int cpu)
84 {
85 }
xen_uninit_lock_cpu(int cpu)86 static inline void xen_uninit_lock_cpu(int cpu)
87 {
88 }
89 #endif
90
91 /* Declare an asm function, along with symbols needed to make it
92 inlineable */
93 #define DECL_ASM(ret, name, ...) \
94 ret name(__VA_ARGS__); \
95 extern char name##_end[]; \
96 extern char name##_reloc[] \
97
98 DECL_ASM(void, xen_irq_enable_direct, void);
99 DECL_ASM(void, xen_irq_disable_direct, void);
100 DECL_ASM(unsigned long, xen_save_fl_direct, void);
101 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
102
103 /* These are not functions, and cannot be called normally */
104 void xen_iret(void);
105 void xen_sysexit(void);
106 void xen_sysret32(void);
107 void xen_sysret64(void);
108 void xen_adjust_exception_frame(void);
109
110 extern int xen_panic_handler_init(void);
111
112 #endif /* XEN_OPS_H */
113