arch/x86/xen/xen-ops.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef XEN_OPS_H
   3 #define XEN_OPS_H
   4
   5 #include <linux/init.h>
   6 #include <linux/clocksource.h>
   7 #include <linux/irqreturn.h>
   8 #include <xen/xen-ops.h>
   9
  10 /* These are code, but not functions.  Defined in entry.S */
  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_build_mfn_list_list(void);
  34 void xen_setup_machphys_mapping(void);
  35 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
  36 void __init xen_reserve_special_pages(void);
  37 void __init xen_pt_check_e820(void);
  38
  39 void xen_mm_pin_all(void);
  40 void xen_mm_unpin_all(void);
  41 #ifdef CONFIG_X86_64
  42 void __init xen_relocate_p2m(void);
  43 #endif
  44
  45 bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
  46 unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
  47 void __init xen_inv_extra_mem(void);
  48 void __init xen_remap_memory(void);
  49 phys_addr_t __init xen_find_free_area(phys_addr_t size);
  50 char * __init xen_memory_setup(void);
  51 void __init xen_arch_setup(void);
  52 void xen_enable_sysenter(void);
  53 void xen_enable_syscall(void);
  54 void xen_vcpu_restore(void);
  55
  56 void xen_hvm_init_shared_info(void);
  57 void xen_unplug_emulated_devices(void);
  58
  59 void __init xen_build_dynamic_phys_to_machine(void);
  60 void __init xen_vmalloc_p2m_tree(void);
  61
  62 void xen_init_irq_ops(void);
  63 void xen_setup_timer(int cpu);
  64 void xen_setup_runstate_info(int cpu);
  65 void xen_teardown_timer(int cpu);
  66 void xen_setup_cpu_clockevents(void);
  67 void xen_save_time_memory_area(void);
  68 void xen_restore_time_memory_area(void);
  69 void xen_init_time_ops(void);
  70 void xen_hvm_init_time_ops(void);
  71
  72 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
  73
  74 bool xen_vcpu_stolen(int vcpu);
  75
  76 extern int xen_have_vcpu_info_placement;
  77
  78 int xen_vcpu_setup(int cpu);
  79 void xen_vcpu_info_reset(int cpu);
  80 void xen_setup_vcpu_info_placement(void);
  81
  82 #ifdef CONFIG_SMP
  83 void xen_smp_init(void);
  84 void __init xen_hvm_smp_init(void);
  85
  86 extern cpumask_var_t xen_cpu_initialized_map;
  87 #else
  88 static inline void xen_smp_init(void) {}
  89 static inline void xen_hvm_smp_init(void) {}
  90 #endif
  91
  92 #ifdef CONFIG_PARAVIRT_SPINLOCKS
  93 void __init xen_init_spinlocks(void);
  94 void xen_init_lock_cpu(int cpu);
  95 void xen_uninit_lock_cpu(int cpu);
  96 #else
  97 static inline void xen_init_spinlocks(void)
  98 {
  99 }
 100 static inline void xen_init_lock_cpu(int cpu)
 101 {
 102 }
 103 static inline void xen_uninit_lock_cpu(int cpu)
 104 {
 105 }
 106 #endif
 107
 108 struct dom0_vga_console_info;
 109
 110 #ifdef CONFIG_XEN_DOM0
 111 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
 112 #else
 113 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
 114                                        size_t size)
 115 {
 116 }
 117 #endif
 118
 119 void __init xen_init_apic(void);
 120
 121 #ifdef CONFIG_XEN_EFI
 122 extern void xen_efi_init(struct boot_params *boot_params);
 123 #else
 124 static inline void __init xen_efi_init(struct boot_params *boot_params)
 125 {
 126 }
 127 #endif
 128
 129 __visible void xen_irq_enable_direct(void);
 130 __visible void xen_irq_disable_direct(void);
 131 __visible unsigned long xen_save_fl_direct(void);
 132 __visible void xen_restore_fl_direct(unsigned long);
 133
 134 __visible unsigned long xen_read_cr2(void);
 135 __visible unsigned long xen_read_cr2_direct(void);
 136
 137 /* These are not functions, and cannot be called normally */
 138 __visible void xen_iret(void);
 139 __visible void xen_sysret32(void);
 140 __visible void xen_sysret64(void);
 141
 142 extern int xen_panic_handler_init(void);
 143
 144 int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
 145                     int (*cpu_dead_cb)(unsigned int));
 146
 147 void xen_pin_vcpu(int cpu);
 148
 149 void xen_emergency_restart(void);
 150 #ifdef CONFIG_XEN_PV
 151 void xen_pv_pre_suspend(void);
 152 void xen_pv_post_suspend(int suspend_cancelled);
 153 #else
 154 static inline void xen_pv_pre_suspend(void) {}
 155 static inline void xen_pv_post_suspend(int suspend_cancelled) {}
 156 #endif
 157
 158 #ifdef CONFIG_XEN_PVHVM
 159 void xen_hvm_post_suspend(int suspend_cancelled);
 160 #else
 161 static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
 162 #endif
 163
 164 #endif /* XEN_OPS_H */