xref: /linux/arch/x86/xen/xen-ops.h (revision 2b8232ce512105e28453f301d1510de8363bccd1)
1 #ifndef XEN_OPS_H
2 #define XEN_OPS_H
3 
4 #include <linux/init.h>
5 
6 /* These are code, but not functions.  Defined in entry.S */
7 extern const char xen_hypervisor_callback[];
8 extern const char xen_failsafe_callback[];
9 
10 void xen_copy_trap_info(struct trap_info *traps);
11 
12 DECLARE_PER_CPU(struct vcpu_info *, xen_vcpu);
13 DECLARE_PER_CPU(unsigned long, xen_cr3);
14 
15 extern struct start_info *xen_start_info;
16 extern struct shared_info *HYPERVISOR_shared_info;
17 
18 char * __init xen_memory_setup(void);
19 void __init xen_arch_setup(void);
20 void __init xen_init_IRQ(void);
21 
22 void xen_setup_timer(int cpu);
23 void xen_setup_cpu_clockevents(void);
24 unsigned long xen_cpu_khz(void);
25 void __init xen_time_init(void);
26 unsigned long xen_get_wallclock(void);
27 int xen_set_wallclock(unsigned long time);
28 unsigned long long xen_sched_clock(void);
29 
30 void xen_mark_init_mm_pinned(void);
31 
32 DECLARE_PER_CPU(enum paravirt_lazy_mode, xen_lazy_mode);
33 
34 static inline unsigned xen_get_lazy_mode(void)
35 {
36 	return x86_read_percpu(xen_lazy_mode);
37 }
38 
39 void __init xen_fill_possible_map(void);
40 
41 void __init xen_setup_vcpu_info_placement(void);
42 void xen_smp_prepare_boot_cpu(void);
43 void xen_smp_prepare_cpus(unsigned int max_cpus);
44 int xen_cpu_up(unsigned int cpu);
45 void xen_smp_cpus_done(unsigned int max_cpus);
46 
47 void xen_smp_send_stop(void);
48 void xen_smp_send_reschedule(int cpu);
49 int xen_smp_call_function (void (*func) (void *info), void *info, int nonatomic,
50 			   int wait);
51 int xen_smp_call_function_single(int cpu, void (*func) (void *info), void *info,
52 				 int nonatomic, int wait);
53 
54 int xen_smp_call_function_mask(cpumask_t mask, void (*func)(void *),
55 			       void *info, int wait);
56 
57 
58 /* Declare an asm function, along with symbols needed to make it
59    inlineable */
60 #define DECL_ASM(ret, name, ...)		\
61 	ret name(__VA_ARGS__);			\
62 	extern char name##_end[];		\
63 	extern char name##_reloc[]		\
64 
65 DECL_ASM(void, xen_irq_enable_direct, void);
66 DECL_ASM(void, xen_irq_disable_direct, void);
67 DECL_ASM(unsigned long, xen_save_fl_direct, void);
68 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
69 
70 void xen_iret_direct(void);
71 #endif /* XEN_OPS_H */
72