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Linux/arch/x86/xen/xen-ops.h

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  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_sysenter_target(void);
 14 #ifdef CONFIG_X86_64
 15 void xen_syscall_target(void);
 16 void xen_syscall32_target(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
 91 static inline void xen_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
100 static inline void xen_init_spinlocks(void)
101 {
102 }
103 static inline void xen_init_lock_cpu(int cpu)
104 {
105 }
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_PV_DOM0
114 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
115 #else
116 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
117                                        size_t size)
118 {
119 }
120 #endif
121 
122 void xen_add_preferred_consoles(void);
123 
124 void __init xen_init_apic(void);
125 
126 #ifdef CONFIG_XEN_EFI
127 extern void xen_efi_init(struct boot_params *boot_params);
128 #else
129 static inline void __init xen_efi_init(struct boot_params *boot_params)
130 {
131 }
132 #endif
133 
134 __visible void xen_irq_enable_direct(void);
135 __visible void xen_irq_disable_direct(void);
136 __visible unsigned long xen_save_fl_direct(void);
137 
138 __visible unsigned long xen_read_cr2(void);
139 __visible unsigned long xen_read_cr2_direct(void);
140 
141 /* These are not functions, and cannot be called normally */
142 __visible void xen_iret(void);
143 
144 extern int xen_panic_handler_init(void);
145 
146 int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
147                     int (*cpu_dead_cb)(unsigned int));
148 
149 void xen_pin_vcpu(int cpu);
150 
151 void xen_emergency_restart(void);
152 #ifdef CONFIG_XEN_PV
153 void xen_pv_pre_suspend(void);
154 void xen_pv_post_suspend(int suspend_cancelled);
155 #else
156 static inline void xen_pv_pre_suspend(void) {}
157 static inline void xen_pv_post_suspend(int suspend_cancelled) {}
158 #endif
159 
160 #ifdef CONFIG_XEN_PVHVM
161 void xen_hvm_post_suspend(int suspend_cancelled);
162 #else
163 static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
164 #endif
165 
166 #endif /* XEN_OPS_H */
167 

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