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 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 char * xen_auto_xlated_memory_setup(void); 54 void __init xen_arch_setup(void); 55 void xen_enable_sysenter(void); 56 void xen_enable_syscall(void); 57 void xen_vcpu_restore(void); 58 59 void xen_callback_vector(void); 60 void xen_hvm_init_shared_info(void); 61 void xen_unplug_emulated_devices(void); 62 63 void __init xen_build_dynamic_phys_to_machine(void); 64 void __init xen_vmalloc_p2m_tree(void); 65 66 void xen_init_irq_ops(void); 67 void xen_setup_timer(int cpu); 68 void xen_setup_runstate_info(int cpu); 69 void xen_teardown_timer(int cpu); 70 u64 xen_clocksource_read(void); 71 void xen_setup_cpu_clockevents(void); 72 void __init xen_init_time_ops(void); 73 void __init 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 void xen_vcpu_setup(int cpu); 80 void xen_setup_vcpu_info_placement(void); 81 82 #ifdef CONFIG_SMP 83 void xen_smp_init(void); 84 void __init xen_hvm_smp_init(void); 85 86 extern cpumask_var_t xen_cpu_initialized_map; 87 #else 88 static inline void xen_smp_init(void) {} 89 static inline void xen_hvm_smp_init(void) {} 90 #endif 91 92 #ifdef CONFIG_PARAVIRT_SPINLOCKS 93 void __init xen_init_spinlocks(void); 94 void xen_init_lock_cpu(int cpu); 95 void xen_uninit_lock_cpu(int cpu); 96 #else 97 static inline void xen_init_spinlocks(void) 98 { 99 } 100 static inline void xen_init_lock_cpu(int cpu) 101 { 102 } 103 static inline void xen_uninit_lock_cpu(int cpu) 104 { 105 } 106 #endif 107 108 struct dom0_vga_console_info; 109 110 #ifdef CONFIG_XEN_DOM0 111 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 112 #else 113 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 114 size_t size) 115 { 116 } 117 #endif 118 119 void __init xen_init_apic(void); 120 121 #ifdef CONFIG_XEN_EFI 122 extern void xen_efi_init(void); 123 #else 124 static inline void __init xen_efi_init(void) 125 { 126 } 127 #endif 128 129 /* Declare an asm function, along with symbols needed to make it 130 inlineable */ 131 #define DECL_ASM(ret, name, ...) \ 132 __visible ret name(__VA_ARGS__); \ 133 extern char name##_end[] __visible; \ 134 extern char name##_reloc[] __visible 135 136 DECL_ASM(void, xen_irq_enable_direct, void); 137 DECL_ASM(void, xen_irq_disable_direct, void); 138 DECL_ASM(unsigned long, xen_save_fl_direct, void); 139 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 140 141 /* These are not functions, and cannot be called normally */ 142 __visible void xen_iret(void); 143 __visible void xen_sysret32(void); 144 __visible void xen_sysret64(void); 145 __visible void xen_adjust_exception_frame(void); 146 147 extern int xen_panic_handler_init(void); 148 149 #endif /* XEN_OPS_H */ 150