arch/x86/xen/xen-ops.h

   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 void __init xen_hvm_smp_init(void);
  68
  69 extern cpumask_var_t xen_cpu_initialized_map;
  70 #else
  71 static inline void xen_smp_init(void) {}
  72 static inline void xen_hvm_smp_init(void) {}
  73 #endif
  74
  75 #ifdef CONFIG_PARAVIRT_SPINLOCKS
  76 void __init xen_init_spinlocks(void);
  77 void __cpuinit xen_init_lock_cpu(int cpu);
  78 void xen_uninit_lock_cpu(int cpu);
  79 #else
  80 static inline void xen_init_spinlocks(void)
  81 {
  82 }
  83 static inline void xen_init_lock_cpu(int cpu)
  84 {
  85 }
  86 static inline void xen_uninit_lock_cpu(int cpu)
  87 {
  88 }
  89 #endif
  90
  91 struct dom0_vga_console_info;
  92
  93 #ifdef CONFIG_XEN_DOM0
  94 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
  95 #else
  96 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
  97                                        size_t size)
  98 {
  99 }
 100 #endif
 101
 102 /* Declare an asm function, along with symbols needed to make it
 103    inlineable */
 104 #define DECL_ASM(ret, name, ...)                \
 105         ret name(__VA_ARGS__);                  \
 106         extern char name##_end[];               \
 107         extern char name##_reloc[]              \
 108
 109 DECL_ASM(void, xen_irq_enable_direct, void);
 110 DECL_ASM(void, xen_irq_disable_direct, void);
 111 DECL_ASM(unsigned long, xen_save_fl_direct, void);
 112 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
 113
 114 /* These are not functions, and cannot be called normally */
 115 void xen_iret(void);
 116 void xen_sysexit(void);
 117 void xen_sysret32(void);
 118 void xen_sysret64(void);
 119 void xen_adjust_exception_frame(void);
 120
 121 extern int xen_panic_handler_init(void);
 122
 123 #endif /* XEN_OPS_H */