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 33 void xen_mm_pin_all(void); 34 void xen_mm_unpin_all(void); 35 36 unsigned long __ref xen_chk_extra_mem(unsigned long pfn); 37 void __init xen_inv_extra_mem(void); 38 void __init xen_remap_memory(void); 39 char * __init xen_memory_setup(void); 40 char * xen_auto_xlated_memory_setup(void); 41 void __init xen_arch_setup(void); 42 void xen_enable_sysenter(void); 43 void xen_enable_syscall(void); 44 void xen_vcpu_restore(void); 45 46 void xen_callback_vector(void); 47 void xen_hvm_init_shared_info(void); 48 void xen_unplug_emulated_devices(void); 49 50 void __init xen_build_dynamic_phys_to_machine(void); 51 void __init xen_vmalloc_p2m_tree(void); 52 53 void xen_init_irq_ops(void); 54 void xen_setup_timer(int cpu); 55 void xen_setup_runstate_info(int cpu); 56 void xen_teardown_timer(int cpu); 57 cycle_t xen_clocksource_read(void); 58 void xen_setup_cpu_clockevents(void); 59 void __init xen_init_time_ops(void); 60 void __init xen_hvm_init_time_ops(void); 61 62 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 63 64 bool xen_vcpu_stolen(int vcpu); 65 66 void xen_setup_vcpu_info_placement(void); 67 68 #ifdef CONFIG_SMP 69 void xen_smp_init(void); 70 void __init xen_hvm_smp_init(void); 71 72 extern cpumask_var_t xen_cpu_initialized_map; 73 #else 74 static inline void xen_smp_init(void) {} 75 static inline void xen_hvm_smp_init(void) {} 76 #endif 77 78 #ifdef CONFIG_PARAVIRT_SPINLOCKS 79 void __init xen_init_spinlocks(void); 80 void xen_init_lock_cpu(int cpu); 81 void xen_uninit_lock_cpu(int cpu); 82 #else 83 static inline void xen_init_spinlocks(void) 84 { 85 } 86 static inline void xen_init_lock_cpu(int cpu) 87 { 88 } 89 static inline void xen_uninit_lock_cpu(int cpu) 90 { 91 } 92 #endif 93 94 struct dom0_vga_console_info; 95 96 #ifdef CONFIG_XEN_DOM0 97 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 98 void __init xen_init_apic(void); 99 #else 100 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 101 size_t size) 102 { 103 } 104 static inline void __init xen_init_apic(void) 105 { 106 } 107 #endif 108 109 #ifdef CONFIG_XEN_EFI 110 extern void xen_efi_init(void); 111 #else 112 static inline void __init xen_efi_init(void) 113 { 114 } 115 #endif 116 117 /* Declare an asm function, along with symbols needed to make it 118 inlineable */ 119 #define DECL_ASM(ret, name, ...) \ 120 __visible ret name(__VA_ARGS__); \ 121 extern char name##_end[] __visible; \ 122 extern char name##_reloc[] __visible 123 124 DECL_ASM(void, xen_irq_enable_direct, void); 125 DECL_ASM(void, xen_irq_disable_direct, void); 126 DECL_ASM(unsigned long, xen_save_fl_direct, void); 127 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 128 129 /* These are not functions, and cannot be called normally */ 130 __visible void xen_iret(void); 131 __visible void xen_sysexit(void); 132 __visible void xen_sysret32(void); 133 __visible void xen_sysret64(void); 134 __visible void xen_adjust_exception_frame(void); 135 136 extern int xen_panic_handler_init(void); 137 138 void xen_pvh_secondary_vcpu_init(int cpu); 139 #endif /* XEN_OPS_H */ 140