1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef XEN_OPS_H
3 #define XEN_OPS_H
4
5 #include <linux/init.h>
6 #include <linux/clocksource.h>
7 #include <linux/irqreturn.h>
8 #include <xen/xen-ops.h>
9
10 /* These are code, but not functions. Defined in entry.S */
11 extern const char xen_failsafe_callback[];
12
13 void xen_entry_SYSENTER_compat(void);
14 #ifdef CONFIG_X86_64
15 void xen_entry_SYSCALL_64(void);
16 void xen_entry_SYSCALL_compat(void);
17 #endif
18
19 extern void *xen_initial_gdt;
20
21 struct trap_info;
22 void xen_copy_trap_info(struct trap_info *traps);
23
24 DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
25 DECLARE_PER_CPU(unsigned long, xen_cr3);
26 DECLARE_PER_CPU(unsigned long, xen_current_cr3);
27
28 extern struct start_info *xen_start_info;
29 extern struct shared_info xen_dummy_shared_info;
30 extern struct shared_info *HYPERVISOR_shared_info;
31
32 extern bool xen_fifo_events;
33
34 void xen_setup_mfn_list_list(void);
35 void xen_build_mfn_list_list(void);
36 void xen_setup_machphys_mapping(void);
37 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
38 void __init xen_reserve_special_pages(void);
39 void __init xen_pt_check_e820(void);
40
41 void xen_mm_pin_all(void);
42 void xen_mm_unpin_all(void);
43 #ifdef CONFIG_X86_64
44 void __init xen_relocate_p2m(void);
45 #endif
46
47 bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
48 unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
49 void __init xen_inv_extra_mem(void);
50 void __init xen_remap_memory(void);
51 phys_addr_t __init xen_find_free_area(phys_addr_t size);
52 char * __init xen_memory_setup(void);
53 void __init xen_arch_setup(void);
54 void xen_banner(void);
55 void xen_enable_sysenter(void);
56 void xen_enable_syscall(void);
57 void xen_vcpu_restore(void);
58
59 void xen_hvm_init_shared_info(void);
60 void xen_unplug_emulated_devices(void);
61
62 void __init xen_build_dynamic_phys_to_machine(void);
63 void __init xen_vmalloc_p2m_tree(void);
64
65 void xen_init_irq_ops(void);
66 void xen_setup_timer(int cpu);
67 void xen_setup_runstate_info(int cpu);
68 void xen_teardown_timer(int cpu);
69 void xen_setup_cpu_clockevents(void);
70 void xen_save_time_memory_area(void);
71 void xen_restore_time_memory_area(void);
72 void xen_init_time_ops(void);
73 void xen_hvm_init_time_ops(void);
74
75 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
76
77 bool xen_vcpu_stolen(int vcpu);
78
79 extern int xen_have_vcpu_info_placement;
80
81 int xen_vcpu_setup(int cpu);
82 void xen_vcpu_info_reset(int cpu);
83 void xen_setup_vcpu_info_placement(void);
84
85 #ifdef CONFIG_SMP
86 void xen_smp_init(void);
87 void __init xen_hvm_smp_init(void);
88
89 extern cpumask_var_t xen_cpu_initialized_map;
90 #else
xen_smp_init(void)91 static inline void xen_smp_init(void) {}
xen_hvm_smp_init(void)92 static inline void xen_hvm_smp_init(void) {}
93 #endif
94
95 #ifdef CONFIG_PARAVIRT_SPINLOCKS
96 void __init xen_init_spinlocks(void);
97 void xen_init_lock_cpu(int cpu);
98 void xen_uninit_lock_cpu(int cpu);
99 #else
xen_init_spinlocks(void)100 static inline void xen_init_spinlocks(void)
101 {
102 }
xen_init_lock_cpu(int cpu)103 static inline void xen_init_lock_cpu(int cpu)
104 {
105 }
xen_uninit_lock_cpu(int cpu)106 static inline void xen_uninit_lock_cpu(int cpu)
107 {
108 }
109 #endif
110
111 struct dom0_vga_console_info;
112
113 #ifdef CONFIG_XEN_DOM0
114 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size,
115 struct screen_info *);
116 #else
xen_init_vga(const struct dom0_vga_console_info * info,size_t size,struct screen_info * si)117 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
118 size_t size, struct screen_info *si)
119 {
120 }
121 #endif
122
123 void xen_add_preferred_consoles(void);
124
125 void __init xen_init_apic(void);
126
127 #ifdef CONFIG_XEN_EFI
128 extern void xen_efi_init(struct boot_params *boot_params);
129 #else
xen_efi_init(struct boot_params * boot_params)130 static inline void __init xen_efi_init(struct boot_params *boot_params)
131 {
132 }
133 #endif
134
135 __visible void xen_irq_enable_direct(void);
136 __visible void xen_irq_disable_direct(void);
137 __visible unsigned long xen_save_fl_direct(void);
138
139 __visible unsigned long xen_read_cr2(void);
140 __visible unsigned long xen_read_cr2_direct(void);
141
142 /* These are not functions, and cannot be called normally */
143 __visible void xen_iret(void);
144
145 extern int xen_panic_handler_init(void);
146
147 int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
148 int (*cpu_dead_cb)(unsigned int));
149
150 void xen_pin_vcpu(int cpu);
151
152 void xen_emergency_restart(void);
153 #ifdef CONFIG_XEN_PV
154 void xen_pv_pre_suspend(void);
155 void xen_pv_post_suspend(int suspend_cancelled);
156 #else
xen_pv_pre_suspend(void)157 static inline void xen_pv_pre_suspend(void) {}
xen_pv_post_suspend(int suspend_cancelled)158 static inline void xen_pv_post_suspend(int suspend_cancelled) {}
159 #endif
160
161 #ifdef CONFIG_XEN_PVHVM
162 void xen_hvm_post_suspend(int suspend_cancelled);
163 #else
xen_hvm_post_suspend(int suspend_cancelled)164 static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
165 #endif
166
167 #endif /* XEN_OPS_H */
168