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 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
  31 void xen_reserve_top(void);
  32 extern unsigned long xen_max_p2m_pfn;
  33
  34 void xen_set_pat(u64);
  35
  36 char * __init xen_memory_setup(void);
  37 void __init xen_arch_setup(void);
  38 void xen_enable_sysenter(void);
  39 void xen_enable_syscall(void);
  40 void xen_vcpu_restore(void);
  41
  42 void xen_callback_vector(void);
  43 void xen_hvm_init_shared_info(void);
  44 void xen_unplug_emulated_devices(void);
  45
  46 void __init xen_build_dynamic_phys_to_machine(void);
  47 unsigned long __init xen_revector_p2m_tree(void);
  48
  49 void xen_init_irq_ops(void);
  50 void xen_setup_timer(int cpu);
  51 void xen_setup_runstate_info(int cpu);
  52 void xen_teardown_timer(int cpu);
  53 cycle_t xen_clocksource_read(void);
  54 void xen_setup_cpu_clockevents(void);
  55 void __init xen_init_time_ops(void);
  56 void __init xen_hvm_init_time_ops(void);
  57
  58 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
  59
  60 bool xen_vcpu_stolen(int vcpu);
  61
  62 void xen_setup_vcpu_info_placement(void);
  63
  64 #ifdef CONFIG_SMP
  65 void xen_smp_init(void);
  66 void __init xen_hvm_smp_init(void);
  67
  68 extern cpumask_var_t xen_cpu_initialized_map;
  69 #else
  70 static inline void xen_smp_init(void) {}
  71 static inline void xen_hvm_smp_init(void) {}
  72 #endif
  73
  74 #ifdef CONFIG_PARAVIRT_SPINLOCKS
  75 void __init xen_init_spinlocks(void);
  76 void xen_init_lock_cpu(int cpu);
  77 void xen_uninit_lock_cpu(int cpu);
  78 #else
  79 static inline void xen_init_spinlocks(void)
  80 {
  81 }
  82 static inline void xen_init_lock_cpu(int cpu)
  83 {
  84 }
  85 static inline void xen_uninit_lock_cpu(int cpu)
  86 {
  87 }
  88 #endif
  89
  90 struct dom0_vga_console_info;
  91
  92 #ifdef CONFIG_XEN_DOM0
  93 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
  94 void __init xen_init_apic(void);
  95 #else
  96 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
  97                                        size_t size)
  98 {
  99 }
 100 static inline void __init xen_init_apic(void)
 101 {
 102 }
 103 #endif
 104
 105 /* Declare an asm function, along with symbols needed to make it
 106    inlineable */
 107 #define DECL_ASM(ret, name, ...)                \
 108         __visible ret name(__VA_ARGS__);        \
 109         extern char name##_end[] __visible;     \
 110         extern char name##_reloc[] __visible
 111
 112 DECL_ASM(void, xen_irq_enable_direct, void);
 113 DECL_ASM(void, xen_irq_disable_direct, void);
 114 DECL_ASM(unsigned long, xen_save_fl_direct, void);
 115 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
 116
 117 /* These are not functions, and cannot be called normally */
 118 __visible void xen_iret(void);
 119 __visible void xen_sysexit(void);
 120 __visible void xen_sysret32(void);
 121 __visible void xen_sysret64(void);
 122 __visible void xen_adjust_exception_frame(void);
 123
 124 extern int xen_panic_handler_init(void);
 125
 126 void xen_pvh_secondary_vcpu_init(int cpu);
 127 #endif /* XEN_OPS_H */