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 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 void xen_setup_mfn_list_list(void); 33 void xen_setup_shared_info(void); 34 void xen_build_mfn_list_list(void); 35 void xen_setup_machphys_mapping(void); 36 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); 37 void xen_reserve_top(void); 38 39 void xen_mm_pin_all(void); 40 void xen_mm_unpin_all(void); 41 42 unsigned long __ref xen_chk_extra_mem(unsigned long pfn); 43 void __init xen_inv_extra_mem(void); 44 void __init xen_remap_memory(void); 45 char * __init xen_memory_setup(void); 46 char * xen_auto_xlated_memory_setup(void); 47 void __init xen_arch_setup(void); 48 void xen_enable_sysenter(void); 49 void xen_enable_syscall(void); 50 void xen_vcpu_restore(void); 51 52 void xen_callback_vector(void); 53 void xen_hvm_init_shared_info(void); 54 void xen_unplug_emulated_devices(void); 55 56 void __init xen_build_dynamic_phys_to_machine(void); 57 void __init xen_vmalloc_p2m_tree(void); 58 59 void xen_init_irq_ops(void); 60 void xen_setup_timer(int cpu); 61 void xen_setup_runstate_info(int cpu); 62 void xen_teardown_timer(int cpu); 63 cycle_t xen_clocksource_read(void); 64 void xen_setup_cpu_clockevents(void); 65 void __init xen_init_time_ops(void); 66 void __init xen_hvm_init_time_ops(void); 67 68 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 69 70 bool xen_vcpu_stolen(int vcpu); 71 72 void xen_setup_vcpu_info_placement(void); 73 74 #ifdef CONFIG_SMP 75 void xen_smp_init(void); 76 void __init xen_hvm_smp_init(void); 77 78 extern cpumask_var_t xen_cpu_initialized_map; 79 #else 80 static inline void xen_smp_init(void) {} 81 static inline void xen_hvm_smp_init(void) {} 82 #endif 83 84 #ifdef CONFIG_PARAVIRT_SPINLOCKS 85 void __init xen_init_spinlocks(void); 86 void xen_init_lock_cpu(int cpu); 87 void xen_uninit_lock_cpu(int cpu); 88 #else 89 static inline void xen_init_spinlocks(void) 90 { 91 } 92 static inline void xen_init_lock_cpu(int cpu) 93 { 94 } 95 static inline void xen_uninit_lock_cpu(int cpu) 96 { 97 } 98 #endif 99 100 struct dom0_vga_console_info; 101 102 #ifdef CONFIG_XEN_DOM0 103 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 104 void __init xen_init_apic(void); 105 #else 106 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 107 size_t size) 108 { 109 } 110 static inline void __init xen_init_apic(void) 111 { 112 } 113 #endif 114 115 #ifdef CONFIG_XEN_EFI 116 extern void xen_efi_init(void); 117 #else 118 static inline void __init xen_efi_init(void) 119 { 120 } 121 #endif 122 123 /* Declare an asm function, along with symbols needed to make it 124 inlineable */ 125 #define DECL_ASM(ret, name, ...) \ 126 __visible ret name(__VA_ARGS__); \ 127 extern char name##_end[] __visible; \ 128 extern char name##_reloc[] __visible 129 130 DECL_ASM(void, xen_irq_enable_direct, void); 131 DECL_ASM(void, xen_irq_disable_direct, void); 132 DECL_ASM(unsigned long, xen_save_fl_direct, void); 133 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 134 135 /* These are not functions, and cannot be called normally */ 136 __visible void xen_iret(void); 137 __visible void xen_sysexit(void); 138 __visible void xen_sysret32(void); 139 __visible void xen_sysret64(void); 140 __visible void xen_adjust_exception_frame(void); 141 142 extern int xen_panic_handler_init(void); 143 144 void xen_pvh_secondary_vcpu_init(int cpu); 145 #endif /* XEN_OPS_H */ 146