xref: /openbmc/linux/arch/x86/xen/xen-ops.h (revision b6dcefde)
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 
34 char * __init xen_memory_setup(void);
35 void __init xen_arch_setup(void);
36 void __init xen_init_IRQ(void);
37 void xen_enable_sysenter(void);
38 void xen_enable_syscall(void);
39 void xen_vcpu_restore(void);
40 
41 void __init xen_build_dynamic_phys_to_machine(void);
42 
43 void xen_init_irq_ops(void);
44 void xen_setup_timer(int cpu);
45 void xen_setup_runstate_info(int cpu);
46 void xen_teardown_timer(int cpu);
47 cycle_t xen_clocksource_read(void);
48 void xen_setup_cpu_clockevents(void);
49 unsigned long xen_tsc_khz(void);
50 void __init xen_time_init(void);
51 unsigned long xen_get_wallclock(void);
52 int xen_set_wallclock(unsigned long time);
53 unsigned long long xen_sched_clock(void);
54 
55 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
56 
57 bool xen_vcpu_stolen(int vcpu);
58 
59 void xen_setup_vcpu_info_placement(void);
60 
61 #ifdef CONFIG_SMP
62 void xen_smp_init(void);
63 
64 extern cpumask_var_t xen_cpu_initialized_map;
65 #else
66 static inline void xen_smp_init(void) {}
67 #endif
68 
69 #ifdef CONFIG_PARAVIRT_SPINLOCKS
70 void __init xen_init_spinlocks(void);
71 __cpuinit void xen_init_lock_cpu(int cpu);
72 void xen_uninit_lock_cpu(int cpu);
73 #else
74 static inline void xen_init_spinlocks(void)
75 {
76 }
77 static inline void xen_init_lock_cpu(int cpu)
78 {
79 }
80 static inline void xen_uninit_lock_cpu(int cpu)
81 {
82 }
83 #endif
84 
85 /* Declare an asm function, along with symbols needed to make it
86    inlineable */
87 #define DECL_ASM(ret, name, ...)		\
88 	ret name(__VA_ARGS__);			\
89 	extern char name##_end[];		\
90 	extern char name##_reloc[]		\
91 
92 DECL_ASM(void, xen_irq_enable_direct, void);
93 DECL_ASM(void, xen_irq_disable_direct, void);
94 DECL_ASM(unsigned long, xen_save_fl_direct, void);
95 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
96 
97 /* These are not functions, and cannot be called normally */
98 void xen_iret(void);
99 void xen_sysexit(void);
100 void xen_sysret32(void);
101 void xen_sysret64(void);
102 void xen_adjust_exception_frame(void);
103 
104 #endif /* XEN_OPS_H */
105