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 extern unsigned long xen_max_p2m_pfn; 34 35 void xen_set_pat(u64); 36 37 char * __init xen_memory_setup(void); 38 void __init xen_arch_setup(void); 39 void __init xen_init_IRQ(void); 40 void xen_enable_sysenter(void); 41 void xen_enable_syscall(void); 42 void xen_vcpu_restore(void); 43 44 void xen_callback_vector(void); 45 void xen_hvm_init_shared_info(void); 46 void xen_unplug_emulated_devices(void); 47 48 void __init xen_build_dynamic_phys_to_machine(void); 49 50 void xen_init_irq_ops(void); 51 void xen_setup_timer(int cpu); 52 void xen_setup_runstate_info(int cpu); 53 void xen_teardown_timer(int cpu); 54 cycle_t xen_clocksource_read(void); 55 void xen_setup_cpu_clockevents(void); 56 void __init xen_init_time_ops(void); 57 void __init xen_hvm_init_time_ops(void); 58 59 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 60 61 bool xen_vcpu_stolen(int vcpu); 62 63 void xen_setup_vcpu_info_placement(void); 64 65 #ifdef CONFIG_SMP 66 void xen_smp_init(void); 67 68 extern cpumask_var_t xen_cpu_initialized_map; 69 #else 70 static inline void xen_smp_init(void) {} 71 #endif 72 73 #ifdef CONFIG_PARAVIRT_SPINLOCKS 74 void __init xen_init_spinlocks(void); 75 __cpuinit void xen_init_lock_cpu(int cpu); 76 void xen_uninit_lock_cpu(int cpu); 77 #else 78 static inline void xen_init_spinlocks(void) 79 { 80 } 81 static inline void xen_init_lock_cpu(int cpu) 82 { 83 } 84 static inline void xen_uninit_lock_cpu(int cpu) 85 { 86 } 87 #endif 88 89 /* Declare an asm function, along with symbols needed to make it 90 inlineable */ 91 #define DECL_ASM(ret, name, ...) \ 92 ret name(__VA_ARGS__); \ 93 extern char name##_end[]; \ 94 extern char name##_reloc[] \ 95 96 DECL_ASM(void, xen_irq_enable_direct, void); 97 DECL_ASM(void, xen_irq_disable_direct, void); 98 DECL_ASM(unsigned long, xen_save_fl_direct, void); 99 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 100 101 /* These are not functions, and cannot be called normally */ 102 void xen_iret(void); 103 void xen_sysexit(void); 104 void xen_sysret32(void); 105 void xen_sysret64(void); 106 void xen_adjust_exception_frame(void); 107 108 extern int xen_panic_handler_init(void); 109 110 #endif /* XEN_OPS_H */ 111