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 pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); 31 void xen_ident_map_ISA(void); 32 void xen_reserve_top(void); 33 34 char * __init xen_memory_setup(void); 35 void __init xen_arch_setup(void); 36 void __init xen_init_IRQ(void); 37 void xen_enable_sysenter(void); 38 void xen_enable_syscall(void); 39 void xen_vcpu_restore(void); 40 41 void xen_callback_vector(void); 42 void xen_hvm_init_shared_info(void); 43 void __init xen_unplug_emulated_devices(void); 44 45 void __init xen_build_dynamic_phys_to_machine(void); 46 47 void xen_init_irq_ops(void); 48 void xen_setup_timer(int cpu); 49 void xen_setup_runstate_info(int cpu); 50 void xen_teardown_timer(int cpu); 51 cycle_t xen_clocksource_read(void); 52 void xen_setup_cpu_clockevents(void); 53 void __init xen_init_time_ops(void); 54 void __init xen_hvm_init_time_ops(void); 55 56 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 57 58 bool xen_vcpu_stolen(int vcpu); 59 60 void xen_setup_vcpu_info_placement(void); 61 62 #ifdef CONFIG_SMP 63 void xen_smp_init(void); 64 65 extern cpumask_var_t xen_cpu_initialized_map; 66 #else 67 static inline void xen_smp_init(void) {} 68 #endif 69 70 #ifdef CONFIG_PARAVIRT_SPINLOCKS 71 void __init xen_init_spinlocks(void); 72 __cpuinit void xen_init_lock_cpu(int cpu); 73 void xen_uninit_lock_cpu(int cpu); 74 #else 75 static inline void xen_init_spinlocks(void) 76 { 77 } 78 static inline void xen_init_lock_cpu(int cpu) 79 { 80 } 81 static inline void xen_uninit_lock_cpu(int cpu) 82 { 83 } 84 #endif 85 86 /* Declare an asm function, along with symbols needed to make it 87 inlineable */ 88 #define DECL_ASM(ret, name, ...) \ 89 ret name(__VA_ARGS__); \ 90 extern char name##_end[]; \ 91 extern char name##_reloc[] \ 92 93 DECL_ASM(void, xen_irq_enable_direct, void); 94 DECL_ASM(void, xen_irq_disable_direct, void); 95 DECL_ASM(unsigned long, xen_save_fl_direct, void); 96 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 97 98 /* These are not functions, and cannot be called normally */ 99 void xen_iret(void); 100 void xen_sysexit(void); 101 void xen_sysret32(void); 102 void xen_sysret64(void); 103 void xen_adjust_exception_frame(void); 104 105 extern int xen_panic_handler_init(void); 106 107 #endif /* XEN_OPS_H */ 108