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 */
10extern const char xen_hypervisor_callback[];
11extern const char xen_failsafe_callback[];
12
13extern void *xen_initial_gdt;
14
15struct trap_info;
16void xen_copy_trap_info(struct trap_info *traps);
17
18DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
19DECLARE_PER_CPU(unsigned long, xen_cr3);
20DECLARE_PER_CPU(unsigned long, xen_current_cr3);
21
22extern struct start_info *xen_start_info;
23extern struct shared_info xen_dummy_shared_info;
24extern struct shared_info *HYPERVISOR_shared_info;
25
26void xen_setup_mfn_list_list(void);
27void xen_setup_shared_info(void);
28void xen_build_mfn_list_list(void);
29void xen_setup_machphys_mapping(void);
30void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
31void xen_reserve_top(void);
32extern unsigned long xen_max_p2m_pfn;
33
34void xen_mm_pin_all(void);
35void xen_mm_unpin_all(void);
36void xen_set_pat(u64);
37
38char * __init xen_memory_setup(void);
39char * xen_auto_xlated_memory_setup(void);
40void __init xen_arch_setup(void);
41void xen_enable_sysenter(void);
42void xen_enable_syscall(void);
43void xen_vcpu_restore(void);
44
45void xen_callback_vector(void);
46void xen_hvm_init_shared_info(void);
47void xen_unplug_emulated_devices(void);
48
49void __init xen_build_dynamic_phys_to_machine(void);
50unsigned long __init xen_revector_p2m_tree(void);
51
52void xen_init_irq_ops(void);
53void xen_setup_timer(int cpu);
54void xen_setup_runstate_info(int cpu);
55void xen_teardown_timer(int cpu);
56cycle_t xen_clocksource_read(void);
57void xen_setup_cpu_clockevents(void);
58void __init xen_init_time_ops(void);
59void __init xen_hvm_init_time_ops(void);
60
61irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
62
63bool xen_vcpu_stolen(int vcpu);
64
65void xen_setup_vcpu_info_placement(void);
66
67#ifdef CONFIG_SMP
68void xen_smp_init(void);
69void __init xen_hvm_smp_init(void);
70
71extern cpumask_var_t xen_cpu_initialized_map;
72#else
73static inline void xen_smp_init(void) {}
74static inline void xen_hvm_smp_init(void) {}
75#endif
76
77#ifdef CONFIG_PARAVIRT_SPINLOCKS
78void __init xen_init_spinlocks(void);
79void xen_init_lock_cpu(int cpu);
80void xen_uninit_lock_cpu(int cpu);
81#else
82static inline void xen_init_spinlocks(void)
83{
84}
85static inline void xen_init_lock_cpu(int cpu)
86{
87}
88static inline void xen_uninit_lock_cpu(int cpu)
89{
90}
91#endif
92
93struct dom0_vga_console_info;
94
95#ifdef CONFIG_XEN_DOM0
96void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
97void __init xen_init_apic(void);
98#else
99static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
100				       size_t size)
101{
102}
103static inline void __init xen_init_apic(void)
104{
105}
106#endif
107
108#ifdef CONFIG_XEN_EFI
109extern void xen_efi_init(void);
110#else
111static inline void __init xen_efi_init(void)
112{
113}
114#endif
115
116/* Declare an asm function, along with symbols needed to make it
117   inlineable */
118#define DECL_ASM(ret, name, ...)		\
119	__visible ret name(__VA_ARGS__);	\
120	extern char name##_end[] __visible;	\
121	extern char name##_reloc[] __visible
122
123DECL_ASM(void, xen_irq_enable_direct, void);
124DECL_ASM(void, xen_irq_disable_direct, void);
125DECL_ASM(unsigned long, xen_save_fl_direct, void);
126DECL_ASM(void, xen_restore_fl_direct, unsigned long);
127
128/* These are not functions, and cannot be called normally */
129__visible void xen_iret(void);
130__visible void xen_sysexit(void);
131__visible void xen_sysret32(void);
132__visible void xen_sysret64(void);
133__visible void xen_adjust_exception_frame(void);
134
135extern int xen_panic_handler_init(void);
136
137void xen_pvh_secondary_vcpu_init(int cpu);
138#endif /* XEN_OPS_H */
139