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

source code of linux/arch/x86/xen/xen-ops.h