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_setup_machphys_mapping(void); 29 pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); 30 void xen_ident_map_ISA(void); 31 void xen_reserve_top(void); 32 33 char * __init xen_memory_setup(void); 34 void __init xen_arch_setup(void); 35 void __init xen_init_IRQ(void); 36 void xen_enable_sysenter(void); 37 void xen_enable_syscall(void); 38 void xen_vcpu_restore(void); 39 40 void __init xen_build_dynamic_phys_to_machine(void); 41 42 void xen_init_irq_ops(void); 43 void xen_setup_timer(int cpu); 44 void xen_teardown_timer(int cpu); 45 cycle_t xen_clocksource_read(void); 46 void xen_setup_cpu_clockevents(void); 47 unsigned long xen_tsc_khz(void); 48 void __init xen_time_init(void); 49 unsigned long xen_get_wallclock(void); 50 int xen_set_wallclock(unsigned long time); 51 unsigned long long xen_sched_clock(void); 52 53 irqreturn_t xen_debug_interrupt(int irq, void *dev_id); 54 55 bool xen_vcpu_stolen(int vcpu); 56 57 void xen_setup_vcpu_info_placement(void); 58 59 #ifdef CONFIG_SMP 60 void xen_smp_init(void); 61 62 extern cpumask_var_t xen_cpu_initialized_map; 63 #else 64 static inline void xen_smp_init(void) {} 65 #endif 66 67 #ifdef CONFIG_PARAVIRT_SPINLOCKS 68 void __init xen_init_spinlocks(void); 69 __cpuinit void xen_init_lock_cpu(int cpu); 70 void xen_uninit_lock_cpu(int cpu); 71 #else 72 static inline void xen_init_spinlocks(void) 73 { 74 } 75 static inline void xen_init_lock_cpu(int cpu) 76 { 77 } 78 static inline void xen_uninit_lock_cpu(int cpu) 79 { 80 } 81 #endif 82 83 /* Declare an asm function, along with symbols needed to make it 84 inlineable */ 85 #define DECL_ASM(ret, name, ...) \ 86 ret name(__VA_ARGS__); \ 87 extern char name##_end[]; \ 88 extern char name##_reloc[] \ 89 90 DECL_ASM(void, xen_irq_enable_direct, void); 91 DECL_ASM(void, xen_irq_disable_direct, void); 92 DECL_ASM(unsigned long, xen_save_fl_direct, void); 93 DECL_ASM(void, xen_restore_fl_direct, unsigned long); 94 95 /* These are not functions, and cannot be called normally */ 96 void xen_iret(void); 97 void xen_sysexit(void); 98 void xen_sysret32(void); 99 void xen_sysret64(void); 100 void xen_adjust_exception_frame(void); 101 102 #endif /* XEN_OPS_H */ 103