LXR linux/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 */
  11extern const char xen_failsafe_callback[];
  12
  13void xen_sysenter_target(void);
  14#ifdef CONFIG_X86_64
  15void xen_syscall_target(void);
  16void xen_syscall32_target(void);
  17#endif
  18
  19extern void *xen_initial_gdt;
  20
  21struct trap_info;
  22void xen_copy_trap_info(struct trap_info *traps);
  23
  24DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
  25DECLARE_PER_CPU(unsigned long, xen_cr3);
  26DECLARE_PER_CPU(unsigned long, xen_current_cr3);
  27
  28extern struct start_info *xen_start_info;
  29extern struct shared_info xen_dummy_shared_info;
  30extern struct shared_info *HYPERVISOR_shared_info;
  31
  32extern bool xen_fifo_events;
  33
  34void xen_setup_mfn_list_list(void);
  35void xen_build_mfn_list_list(void);
  36void xen_setup_machphys_mapping(void);
  37void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
  38void __init xen_reserve_special_pages(void);
  39void __init xen_pt_check_e820(void);
  40
  41void xen_mm_pin_all(void);
  42void xen_mm_unpin_all(void);
  43#ifdef CONFIG_X86_64
  44void __init xen_relocate_p2m(void);
  45#endif
  46
  47bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
  48unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
  49void __init xen_inv_extra_mem(void);
  50void __init xen_remap_memory(void);
  51phys_addr_t __init xen_find_free_area(phys_addr_t size);
  52char * __init xen_memory_setup(void);
  53void __init xen_arch_setup(void);
  54void xen_banner(void);
  55void xen_enable_sysenter(void);
  56void xen_enable_syscall(void);
  57void xen_vcpu_restore(void);
  58
  59void xen_hvm_init_shared_info(void);
  60void xen_unplug_emulated_devices(void);
  61
  62void __init xen_build_dynamic_phys_to_machine(void);
  63void __init xen_vmalloc_p2m_tree(void);
  64
  65void xen_init_irq_ops(void);
  66void xen_setup_timer(int cpu);
  67void xen_setup_runstate_info(int cpu);
  68void xen_teardown_timer(int cpu);
  69void xen_setup_cpu_clockevents(void);
  70void xen_save_time_memory_area(void);
  71void xen_restore_time_memory_area(void);
  72void xen_init_time_ops(void);
  73void xen_hvm_init_time_ops(void);
  74
  75irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
  76
  77bool xen_vcpu_stolen(int vcpu);
  78
  79extern int xen_have_vcpu_info_placement;
  80
  81int xen_vcpu_setup(int cpu);
  82void xen_vcpu_info_reset(int cpu);
  83void xen_setup_vcpu_info_placement(void);
  84
  85#ifdef CONFIG_SMP
  86void xen_smp_init(void);
  87void __init xen_hvm_smp_init(void);
  88
  89extern cpumask_var_t xen_cpu_initialized_map;
  90#else
  91static inline void xen_smp_init(void) {}
  92static inline void xen_hvm_smp_init(void) {}
  93#endif
  94
  95#ifdef CONFIG_PARAVIRT_SPINLOCKS
  96void __init xen_init_spinlocks(void);
  97void xen_init_lock_cpu(int cpu);
  98void xen_uninit_lock_cpu(int cpu);
  99#else
 100static inline void xen_init_spinlocks(void)
 101{
 102}
 103static inline void xen_init_lock_cpu(int cpu)
 104{
 105}
 106static inline void xen_uninit_lock_cpu(int cpu)
 107{
 108}
 109#endif
 110
 111struct dom0_vga_console_info;
 112
 113#ifdef CONFIG_XEN_PV_DOM0
 114void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
 115#else
 116static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
 117                                       size_t size)
 118{
 119}
 120#endif
 121
 122void xen_add_preferred_consoles(void);
 123
 124void __init xen_init_apic(void);
 125
 126#ifdef CONFIG_XEN_EFI
 127extern void xen_efi_init(struct boot_params *boot_params);
 128#else
 129static inline void __init xen_efi_init(struct boot_params *boot_params)
 130{
 131}
 132#endif
 133
 134__visible void xen_irq_enable_direct(void);
 135__visible void xen_irq_disable_direct(void);
 136__visible unsigned long xen_save_fl_direct(void);
 137
 138__visible unsigned long xen_read_cr2(void);
 139__visible unsigned long xen_read_cr2_direct(void);
 140
 141/* These are not functions, and cannot be called normally */
 142__visible void xen_iret(void);
 143
 144extern int xen_panic_handler_init(void);
 145
 146int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
 147                    int (*cpu_dead_cb)(unsigned int));
 148
 149void xen_pin_vcpu(int cpu);
 150
 151void xen_emergency_restart(void);
 152#ifdef CONFIG_XEN_PV
 153void xen_pv_pre_suspend(void);
 154void xen_pv_post_suspend(int suspend_cancelled);
 155#else
 156static inline void xen_pv_pre_suspend(void) {}
 157static inline void xen_pv_post_suspend(int suspend_cancelled) {}
 158#endif
 159
 160#ifdef CONFIG_XEN_PVHVM
 161void xen_hvm_post_suspend(int suspend_cancelled);
 162#else
 163static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
 164#endif
 165
 166#endif /* XEN_OPS_H */
 167