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 void xen_sysenter_target(void);
  14 #ifdef CONFIG_X86_64
  15 void xen_syscall_target(void);
  16 void xen_syscall32_target(void);
  17 #endif
  18
  19 extern void *xen_initial_gdt;
  20
  21 struct trap_info;
  22 void xen_copy_trap_info(struct trap_info *traps);
  23
  24 DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
  25 DECLARE_PER_CPU(unsigned long, xen_cr3);
  26 DECLARE_PER_CPU(unsigned long, xen_current_cr3);
  27
  28 extern struct start_info *xen_start_info;
  29 extern struct shared_info xen_dummy_shared_info;
  30 extern struct shared_info *HYPERVISOR_shared_info;
  31
  32 void xen_setup_mfn_list_list(void);
  33 void xen_setup_shared_info(void);
  34 void xen_build_mfn_list_list(void);
  35 void xen_setup_machphys_mapping(void);
  36 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
  37 void xen_reserve_top(void);
  38
  39 void xen_mm_pin_all(void);
  40 void xen_mm_unpin_all(void);
  41
  42 unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
  43 void __init xen_inv_extra_mem(void);
  44 void __init xen_remap_memory(void);
  45 char * __init xen_memory_setup(void);
  46 char * xen_auto_xlated_memory_setup(void);
  47 void __init xen_arch_setup(void);
  48 void xen_enable_sysenter(void);
  49 void xen_enable_syscall(void);
  50 void xen_vcpu_restore(void);
  51
  52 void xen_callback_vector(void);
  53 void xen_hvm_init_shared_info(void);
  54 void xen_unplug_emulated_devices(void);
  55
  56 void __init xen_build_dynamic_phys_to_machine(void);
  57 void __init xen_vmalloc_p2m_tree(void);
  58
  59 void xen_init_irq_ops(void);
  60 void xen_setup_timer(int cpu);
  61 void xen_setup_runstate_info(int cpu);
  62 void xen_teardown_timer(int cpu);
  63 cycle_t xen_clocksource_read(void);
  64 void xen_setup_cpu_clockevents(void);
  65 void __init xen_init_time_ops(void);
  66 void __init xen_hvm_init_time_ops(void);
  67
  68 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
  69
  70 bool xen_vcpu_stolen(int vcpu);
  71
  72 void xen_setup_vcpu_info_placement(void);
  73
  74 #ifdef CONFIG_SMP
  75 void xen_smp_init(void);
  76 void __init xen_hvm_smp_init(void);
  77
  78 extern cpumask_var_t xen_cpu_initialized_map;
  79 #else
  80 static inline void xen_smp_init(void) {}
  81 static inline void xen_hvm_smp_init(void) {}
  82 #endif
  83
  84 #ifdef CONFIG_PARAVIRT_SPINLOCKS
  85 void __init xen_init_spinlocks(void);
  86 void xen_init_lock_cpu(int cpu);
  87 void xen_uninit_lock_cpu(int cpu);
  88 #else
  89 static inline void xen_init_spinlocks(void)
  90 {
  91 }
  92 static inline void xen_init_lock_cpu(int cpu)
  93 {
  94 }
  95 static inline void xen_uninit_lock_cpu(int cpu)
  96 {
  97 }
  98 #endif
  99
 100 struct dom0_vga_console_info;
 101
 102 #ifdef CONFIG_XEN_DOM0
 103 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
 104 #else
 105 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
 106                                        size_t size)
 107 {
 108 }
 109 #endif
 110
 111 void __init xen_init_apic(void);
 112
 113 #ifdef CONFIG_XEN_EFI
 114 extern void xen_efi_init(void);
 115 #else
 116 static inline void __init xen_efi_init(void)
 117 {
 118 }
 119 #endif
 120
 121 /* Declare an asm function, along with symbols needed to make it
 122    inlineable */
 123 #define DECL_ASM(ret, name, ...)                \
 124         __visible ret name(__VA_ARGS__);        \
 125         extern char name##_end[] __visible;     \
 126         extern char name##_reloc[] __visible
 127
 128 DECL_ASM(void, xen_irq_enable_direct, void);
 129 DECL_ASM(void, xen_irq_disable_direct, void);
 130 DECL_ASM(unsigned long, xen_save_fl_direct, void);
 131 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
 132
 133 /* These are not functions, and cannot be called normally */
 134 __visible void xen_iret(void);
 135 __visible void xen_sysexit(void);
 136 __visible void xen_sysret32(void);
 137 __visible void xen_sysret64(void);
 138 __visible void xen_adjust_exception_frame(void);
 139
 140 extern int xen_panic_handler_init(void);
 141
 142 void xen_pvh_secondary_vcpu_init(int cpu);
 143 #endif /* XEN_OPS_H */