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 void __init xen_reserve_special_pages(void);
  39 void __init xen_pt_check_e820(void);
  40
  41 void xen_mm_pin_all(void);
  42 void xen_mm_unpin_all(void);
  43 #ifdef CONFIG_X86_64
  44 void __init xen_relocate_p2m(void);
  45 #endif
  46
  47 bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
  48 unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
  49 void __init xen_inv_extra_mem(void);
  50 void __init xen_remap_memory(void);
  51 phys_addr_t __init xen_find_free_area(phys_addr_t size);
  52 char * __init xen_memory_setup(void);
  53 char * xen_auto_xlated_memory_setup(void);
  54 void __init xen_arch_setup(void);
  55 void xen_enable_sysenter(void);
  56 void xen_enable_syscall(void);
  57 void xen_vcpu_restore(void);
  58
  59 void xen_callback_vector(void);
  60 void xen_hvm_init_shared_info(void);
  61 void xen_unplug_emulated_devices(void);
  62
  63 void __init xen_build_dynamic_phys_to_machine(void);
  64 void __init xen_vmalloc_p2m_tree(void);
  65
  66 void xen_init_irq_ops(void);
  67 void xen_setup_timer(int cpu);
  68 void xen_setup_runstate_info(int cpu);
  69 void xen_teardown_timer(int cpu);
  70 u64 xen_clocksource_read(void);
  71 void xen_setup_cpu_clockevents(void);
  72 void __init xen_init_time_ops(void);
  73 void __init xen_hvm_init_time_ops(void);
  74
  75 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
  76
  77 bool xen_vcpu_stolen(int vcpu);
  78
  79 extern int xen_have_vcpu_info_placement;
  80
  81 int xen_vcpu_setup(int cpu);
  82 void xen_vcpu_info_reset(int cpu);
  83 void xen_setup_vcpu_info_placement(void);
  84
  85 #ifdef CONFIG_SMP
  86 void xen_smp_init(void);
  87 void __init xen_hvm_smp_init(void);
  88
  89 extern cpumask_var_t xen_cpu_initialized_map;
  90 #else
  91 static inline void xen_smp_init(void) {}
  92 static inline void xen_hvm_smp_init(void) {}
  93 #endif
  94
  95 #ifdef CONFIG_PARAVIRT_SPINLOCKS
  96 void __init xen_init_spinlocks(void);
  97 void xen_init_lock_cpu(int cpu);
  98 void xen_uninit_lock_cpu(int cpu);
  99 #else
 100 static inline void xen_init_spinlocks(void)
 101 {
 102 }
 103 static inline void xen_init_lock_cpu(int cpu)
 104 {
 105 }
 106 static inline void xen_uninit_lock_cpu(int cpu)
 107 {
 108 }
 109 #endif
 110
 111 struct dom0_vga_console_info;
 112
 113 #ifdef CONFIG_XEN_DOM0
 114 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
 115 #else
 116 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
 117                                        size_t size)
 118 {
 119 }
 120 #endif
 121
 122 void __init xen_init_apic(void);
 123
 124 #ifdef CONFIG_XEN_EFI
 125 extern void xen_efi_init(void);
 126 #else
 127 static inline void __init xen_efi_init(void)
 128 {
 129 }
 130 #endif
 131
 132 /* Declare an asm function, along with symbols needed to make it
 133    inlineable */
 134 #define DECL_ASM(ret, name, ...)                \
 135         __visible ret name(__VA_ARGS__);        \
 136         extern char name##_end[] __visible;     \
 137         extern char name##_reloc[] __visible
 138
 139 DECL_ASM(void, xen_irq_enable_direct, void);
 140 DECL_ASM(void, xen_irq_disable_direct, void);
 141 DECL_ASM(unsigned long, xen_save_fl_direct, void);
 142 DECL_ASM(void, xen_restore_fl_direct, unsigned long);
 143
 144 /* These are not functions, and cannot be called normally */
 145 __visible void xen_iret(void);
 146 __visible void xen_sysret32(void);
 147 __visible void xen_sysret64(void);
 148 __visible void xen_adjust_exception_frame(void);
 149
 150 extern int xen_panic_handler_init(void);
 151
 152 int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
 153                     int (*cpu_dead_cb)(unsigned int));
 154
 155 void xen_pin_vcpu(int cpu);
 156
 157 void xen_emergency_restart(void);
 158 #ifdef CONFIG_XEN_PV
 159 void xen_pv_pre_suspend(void);
 160 void xen_pv_post_suspend(int suspend_cancelled);
 161 #else
 162 static inline void xen_pv_pre_suspend(void) {}
 163 static inline void xen_pv_post_suspend(int suspend_cancelled) {}
 164 #endif
 165
 166 #ifdef CONFIG_XEN_PVHVM
 167 void xen_hvm_post_suspend(int suspend_cancelled);
 168 #else
 169 static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
 170 #endif
 171
 172 #endif /* XEN_OPS_H */