1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/init.h>
6 #include <linux/clocksource.h>
7 #include <linux/irqreturn.h>
8 #include <xen/xen-ops.h>
10 /* These are code, but not functions. Defined in entry.S */
11 extern const char xen_failsafe_callback
[];
13 void xen_sysenter_target(void);
15 void xen_syscall_target(void);
16 void xen_syscall32_target(void);
19 extern void *xen_initial_gdt
;
22 void xen_copy_trap_info(struct trap_info
*traps
);
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
);
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
;
32 extern bool xen_fifo_events
;
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);
41 void xen_mm_pin_all(void);
42 void xen_mm_unpin_all(void);
44 void __init
xen_relocate_p2m(void);
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_enable_sysenter(void);
55 void xen_enable_syscall(void);
56 void xen_vcpu_restore(void);
58 void xen_hvm_init_shared_info(void);
59 void xen_unplug_emulated_devices(void);
61 void __init
xen_build_dynamic_phys_to_machine(void);
62 void __init
xen_vmalloc_p2m_tree(void);
64 void xen_init_irq_ops(void);
65 void xen_setup_timer(int cpu
);
66 void xen_setup_runstate_info(int cpu
);
67 void xen_teardown_timer(int cpu
);
68 void xen_setup_cpu_clockevents(void);
69 void xen_save_time_memory_area(void);
70 void xen_restore_time_memory_area(void);
71 void xen_init_time_ops(void);
72 void xen_hvm_init_time_ops(void);
74 irqreturn_t
xen_debug_interrupt(int irq
, void *dev_id
);
76 bool xen_vcpu_stolen(int vcpu
);
78 extern int xen_have_vcpu_info_placement
;
80 int xen_vcpu_setup(int cpu
);
81 void xen_vcpu_info_reset(int cpu
);
82 void xen_setup_vcpu_info_placement(void);
85 void xen_smp_init(void);
86 void __init
xen_hvm_smp_init(void);
88 extern cpumask_var_t xen_cpu_initialized_map
;
90 static inline void xen_smp_init(void) {}
91 static inline void xen_hvm_smp_init(void) {}
94 #ifdef CONFIG_PARAVIRT_SPINLOCKS
95 void __init
xen_init_spinlocks(void);
96 void xen_init_lock_cpu(int cpu
);
97 void xen_uninit_lock_cpu(int cpu
);
99 static inline void xen_init_spinlocks(void)
102 static inline void xen_init_lock_cpu(int cpu
)
105 static inline void xen_uninit_lock_cpu(int cpu
)
110 struct dom0_vga_console_info
;
112 #ifdef CONFIG_XEN_DOM0
113 void __init
xen_init_vga(const struct dom0_vga_console_info
*, size_t size
);
115 static inline void __init
xen_init_vga(const struct dom0_vga_console_info
*info
,
121 void __init
xen_init_apic(void);
123 #ifdef CONFIG_XEN_EFI
124 extern void xen_efi_init(struct boot_params
*boot_params
);
126 static inline void __init
xen_efi_init(struct boot_params
*boot_params
)
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 __visible
void xen_restore_fl_direct(unsigned long);
136 __visible
unsigned long xen_read_cr2(void);
137 __visible
unsigned long xen_read_cr2_direct(void);
139 /* These are not functions, and cannot be called normally */
140 __visible
void xen_iret(void);
141 __visible
void xen_sysret32(void);
142 __visible
void xen_sysret64(void);
144 extern int xen_panic_handler_init(void);
146 int xen_cpuhp_setup(int (*cpu_up_prepare_cb
)(unsigned int),
147 int (*cpu_dead_cb
)(unsigned int));
149 void xen_pin_vcpu(int cpu
);
151 void xen_emergency_restart(void);
153 void xen_pv_pre_suspend(void);
154 void xen_pv_post_suspend(int suspend_cancelled
);
156 static inline void xen_pv_pre_suspend(void) {}
157 static inline void xen_pv_post_suspend(int suspend_cancelled
) {}
160 #ifdef CONFIG_XEN_PVHVM
161 void xen_hvm_post_suspend(int suspend_cancelled
);
163 static inline void xen_hvm_post_suspend(int suspend_cancelled
) {}
166 #endif /* XEN_OPS_H */