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_set_pat(u64); 35 36 char * __init xen_memory_setup(void); 37 void __init xen_arch_setup(void); 38 void xen_enable_sysenter(void); 39 void xen_enable_syscall(void); 40 void xen_vcpu_restore(void); 41 42 void xen_callback_vector(void); 43 void xen_hvm_init_shared_info(void); 44 void xen_unplug_emulated_devices(void); 45 46 void __init xen_build_dynamic_phys_to_machine(void); 47 unsigned long __init xen_revector_p2m_tree(void); 48 49 void xen_init_irq_ops(void); 50 void xen_setup_timer(int cpu); 51 void xen_setup_runstate_info(int cpu); 52 void xen_teardown_timer(int cpu); 53 cycle_t xen_clocksource_read(void); 54 void xen_setup_cpu_clockevents(void); 55 void __init xen_init_time_ops(void); 56 void __init xen_hvm_init_time_ops(void); 57 58 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 59 60 bool xen_vcpu_stolen(int vcpu); 61 62 void xen_setup_vcpu_info_placement(void); 63 64 #ifdef CONFIG_SMP 65 void xen_smp_init(void); 66 void __init xen_hvm_smp_init(void); 67 68 extern cpumask_var_t xen_cpu_initialized_map; 69 #else 70 static inline void xen_smp_init(void) {} 71 static inline void xen_hvm_smp_init(void) {} 72 #endif 73 74 #ifdef CONFIG_PARAVIRT_SPINLOCKS 75 void __init xen_init_spinlocks(void); 76 void xen_init_lock_cpu(int cpu); 77 void xen_uninit_lock_cpu(int cpu); 78 #else 79 static inline void xen_init_spinlocks(void) 80 { 81 } 82 static inline void xen_init_lock_cpu(int cpu) 83 { 84 } 85 static inline void xen_uninit_lock_cpu(int cpu) 86 { 87 } 88 #endif 89 90 struct dom0_vga_console_info; 91 92 #ifdef CONFIG_XEN_DOM0 93 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 94 void __init xen_init_apic(void); 95 #else 96 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 97 size_t size) 98 { 99 } 100 static inline void __init xen_init_apic(void) 101 { 102 } 103 #endif 104 105 /* Declare an asm function, along with symbols needed to make it 106 inlineable */ 107 #define DECL_ASM(ret, name, ...) \ 108 __visible ret name(__VA_ARGS__); \ 109 extern char name##_end[] __visible; \ 110 extern char name##_reloc[] __visible 111 112 DECL_ASM(void, xen_irq_enable_direct, void); 113 DECL_ASM(void, xen_irq_disable_direct, void); 114 DECL_ASM(unsigned long, xen_save_fl_direct, void); 115 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 116 117 /* These are not functions, and cannot be called normally */ 118 __visible void xen_iret(void); 119 __visible void xen_sysexit(void); 120 __visible void xen_sysret32(void); 121 __visible void xen_sysret64(void); 122 __visible void xen_adjust_exception_frame(void); 123 124 extern int xen_panic_handler_init(void); 125 126 #endif /* XEN_OPS_H */ 127