summaryrefslogtreecommitdiffstats
path: root/arch/x86/xen/xen-ops.h
blob: f6a41c41ebc7d1b3f1d251ff7144c4d071c82fdd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
#ifndef XEN_OPS_H
#define XEN_OPS_H

#include <linux/init.h>
#include <linux/clocksource.h>
#include <linux/irqreturn.h>
#include <xen/xen-ops.h>

/* These are code, but not functions.  Defined in entry.S */
extern const char xen_hypervisor_callback[];
extern const char xen_failsafe_callback[];

void xen_sysenter_target(void);
#ifdef CONFIG_X86_64
void xen_syscall_target(void);
void xen_syscall32_target(void);
#endif

extern void *xen_initial_gdt;

struct trap_info;
void xen_copy_trap_info(struct trap_info *traps);

DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
DECLARE_PER_CPU(unsigned long, xen_cr3);
DECLARE_PER_CPU(unsigned long, xen_current_cr3);

extern struct start_info *xen_start_info;
extern struct shared_info xen_dummy_shared_info;
extern struct shared_info *HYPERVISOR_shared_info;

void xen_setup_mfn_list_list(void);
void xen_setup_shared_info(void);
void xen_build_mfn_list_list(void);
void xen_setup_machphys_mapping(void);
void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
void xen_reserve_top(void);
void __init xen_reserve_special_pages(void);
void __init xen_pt_check_e820(void);

void xen_mm_pin_all(void);
void xen_mm_unpin_all(void);
#ifdef CONFIG_X86_64
void __init xen_relocate_p2m(void);
#endif

bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
void __init xen_inv_extra_mem(void);
void __init xen_remap_memory(void);
phys_addr_t __init xen_find_free_area(phys_addr_t size);
char * __init xen_memory_setup(void);
char * xen_auto_xlated_memory_setup(void);
void __init xen_arch_setup(void);
void xen_enable_sysenter(void);
void xen_enable_syscall(void);
void xen_vcpu_restore(void);

void xen_callback_vector(void);
void xen_hvm_init_shared_info(void);
void xen_unplug_emulated_devices(void);

void __init xen_build_dynamic_phys_to_machine(void);
void __init xen_vmalloc_p2m_tree(void);

void xen_init_irq_ops(void);
void xen_setup_timer(int cpu);
void xen_setup_runstate_info(int cpu);
void xen_teardown_timer(int cpu);
u64 xen_clocksource_read(void);
void xen_setup_cpu_clockevents(void);
void __init xen_init_time_ops(void);
void __init xen_hvm_init_time_ops(void);

irqreturn_t xen_debug_interrupt(int irq, void *dev_id);

bool xen_vcpu_stolen(int vcpu);

void xen_vcpu_setup(int cpu);
void xen_setup_vcpu_info_placement(void);

#ifdef CONFIG_SMP
void xen_smp_init(void);
void __init xen_hvm_smp_init(void);

extern cpumask_var_t xen_cpu_initialized_map;
#else
static inline void xen_smp_init(void) {}
static inline void xen_hvm_smp_init(void) {}
#endif

#ifdef CONFIG_PARAVIRT_SPINLOCKS
void __init xen_init_spinlocks(void);
void xen_init_lock_cpu(int cpu);
void xen_uninit_lock_cpu(int cpu);
#else
static inline void xen_init_spinlocks(void)
{
}
static inline void xen_init_lock_cpu(int cpu)
{
}
static inline void xen_uninit_lock_cpu(int cpu)
{
}
#endif

struct dom0_vga_console_info;

#ifdef CONFIG_XEN_DOM0
void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
#else
static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
				       size_t size)
{
}
#endif

void __init xen_init_apic(void);

#ifdef CONFIG_XEN_EFI
extern void xen_efi_init(void);
#else
static inline void __init xen_efi_init(void)
{
}
#endif

/* Declare an asm function, along with symbols needed to make it
   inlineable */
#define DECL_ASM(ret, name, ...)		\
	__visible ret name(__VA_ARGS__);	\
	extern char name##_end[] __visible;	\
	extern char name##_reloc[] __visible

DECL_ASM(void, xen_irq_enable_direct, void);
DECL_ASM(void, xen_irq_disable_direct, void);
DECL_ASM(unsigned long, xen_save_fl_direct, void);
DECL_ASM(void, xen_restore_fl_direct, unsigned long);

/* These are not functions, and cannot be called normally */
__visible void xen_iret(void);
__visible void xen_sysret32(void);
__visible void xen_sysret64(void);
__visible void xen_adjust_exception_frame(void);

extern int xen_panic_handler_init(void);

#endif /* XEN_OPS_H */