1 #ifndef XEN_OPS_H 2 #define XEN_OPS_H 3 4 #include <linux/init.h> 5 #include <linux/clocksource.h> 6 #include <linux/irqreturn.h> 7 #include <xen/xen-ops.h> 8 9 /* These are code, but not functions. Defined in entry.S */ 10 extern const char xen_hypervisor_callback[]; 11 extern const char xen_failsafe_callback[]; 12 13 extern void *xen_initial_gdt; 14 15 struct trap_info; 16 void xen_copy_trap_info(struct trap_info *traps); 17 18 DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info); 19 DECLARE_PER_CPU(unsigned long, xen_cr3); 20 DECLARE_PER_CPU(unsigned long, xen_current_cr3); 21 22 extern struct start_info *xen_start_info; 23 extern struct shared_info xen_dummy_shared_info; 24 extern struct shared_info *HYPERVISOR_shared_info; 25 26 void xen_setup_mfn_list_list(void); 27 void xen_setup_shared_info(void); 28 void xen_build_mfn_list_list(void); 29 void xen_setup_machphys_mapping(void); 30 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); 31 void xen_reserve_top(void); 32 extern unsigned long xen_max_p2m_pfn; 33 34 void xen_mm_pin_all(void); 35 void xen_mm_unpin_all(void); 36 37 char * __init xen_memory_setup(void); 38 char * xen_auto_xlated_memory_setup(void); 39 void __init xen_arch_setup(void); 40 void xen_enable_sysenter(void); 41 void xen_enable_syscall(void); 42 void xen_vcpu_restore(void); 43 44 void xen_callback_vector(void); 45 void xen_hvm_init_shared_info(void); 46 void xen_unplug_emulated_devices(void); 47 48 void __init xen_build_dynamic_phys_to_machine(void); 49 unsigned long __init xen_revector_p2m_tree(void); 50 51 void xen_init_irq_ops(void); 52 void xen_setup_timer(int cpu); 53 void xen_setup_runstate_info(int cpu); 54 void xen_teardown_timer(int cpu); 55 cycle_t xen_clocksource_read(void); 56 void xen_setup_cpu_clockevents(void); 57 void __init xen_init_time_ops(void); 58 void __init xen_hvm_init_time_ops(void); 59 60 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 61 62 bool xen_vcpu_stolen(int vcpu); 63 64 void xen_setup_vcpu_info_placement(void); 65 66 #ifdef CONFIG_SMP 67 void xen_smp_init(void); 68 void __init xen_hvm_smp_init(void); 69 70 extern cpumask_var_t xen_cpu_initialized_map; 71 #else 72 static inline void xen_smp_init(void) {} 73 static inline void xen_hvm_smp_init(void) {} 74 #endif 75 76 #ifdef CONFIG_PARAVIRT_SPINLOCKS 77 void __init xen_init_spinlocks(void); 78 void xen_init_lock_cpu(int cpu); 79 void xen_uninit_lock_cpu(int cpu); 80 #else 81 static inline void xen_init_spinlocks(void) 82 { 83 } 84 static inline void xen_init_lock_cpu(int cpu) 85 { 86 } 87 static inline void xen_uninit_lock_cpu(int cpu) 88 { 89 } 90 #endif 91 92 struct dom0_vga_console_info; 93 94 #ifdef CONFIG_XEN_DOM0 95 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 96 void __init xen_init_apic(void); 97 #else 98 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 99 size_t size) 100 { 101 } 102 static inline void __init xen_init_apic(void) 103 { 104 } 105 #endif 106 107 #ifdef CONFIG_XEN_EFI 108 extern void xen_efi_init(void); 109 #else 110 static inline void __init xen_efi_init(void) 111 { 112 } 113 #endif 114 115 /* Declare an asm function, along with symbols needed to make it 116 inlineable */ 117 #define DECL_ASM(ret, name, ...) \ 118 __visible ret name(__VA_ARGS__); \ 119 extern char name##_end[] __visible; \ 120 extern char name##_reloc[] __visible 121 122 DECL_ASM(void, xen_irq_enable_direct, void); 123 DECL_ASM(void, xen_irq_disable_direct, void); 124 DECL_ASM(unsigned long, xen_save_fl_direct, void); 125 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 126 127 /* These are not functions, and cannot be called normally */ 128 __visible void xen_iret(void); 129 __visible void xen_sysexit(void); 130 __visible void xen_sysret32(void); 131 __visible void xen_sysret64(void); 132 __visible void xen_adjust_exception_frame(void); 133 134 extern int xen_panic_handler_init(void); 135 136 void xen_pvh_secondary_vcpu_init(int cpu); 137 #endif /* XEN_OPS_H */ 138