x86/xen/xen-ops.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef XEN_OPS_H
0003 #define XEN_OPS_H
0004
0005 #include <linux/init.h>
0006 #include <linux/clocksource.h>
0007 #include <linux/irqreturn.h>
0008 #include <xen/xen-ops.h>
0009
0010 /* These are code, but not functions.  Defined in entry.S */
0011 extern const char xen_failsafe_callback[];
0012
0013 void xen_entry_SYSENTER_compat(void);
0014 #ifdef CONFIG_X86_64
0015 void xen_entry_SYSCALL_64(void);
0016 void xen_entry_SYSCALL_compat(void);
0017 #endif
0018
0019 extern void *xen_initial_gdt;
0020
0021 struct trap_info;
0022 void xen_copy_trap_info(struct trap_info *traps);
0023
0024 DECLARE_PER_CPU(struct vcpu_info, xen_vcpu_info);
0025 DECLARE_PER_CPU(unsigned long, xen_cr3);
0026 DECLARE_PER_CPU(unsigned long, xen_current_cr3);
0027
0028 extern struct start_info *xen_start_info;
0029 extern struct shared_info xen_dummy_shared_info;
0030 extern struct shared_info *HYPERVISOR_shared_info;
0031
0032 extern bool xen_fifo_events;
0033
0034 void xen_setup_mfn_list_list(void);
0035 void xen_build_mfn_list_list(void);
0036 void xen_setup_machphys_mapping(void);
0037 void xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn);
0038 void __init xen_reserve_special_pages(void);
0039 void __init xen_pt_check_e820(void);
0040
0041 void xen_mm_pin_all(void);
0042 void xen_mm_unpin_all(void);
0043 #ifdef CONFIG_X86_64
0044 void __init xen_relocate_p2m(void);
0045 #endif
0046
0047 bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size);
0048 unsigned long __ref xen_chk_extra_mem(unsigned long pfn);
0049 void __init xen_inv_extra_mem(void);
0050 void __init xen_remap_memory(void);
0051 phys_addr_t __init xen_find_free_area(phys_addr_t size);
0052 char * __init xen_memory_setup(void);
0053 void __init xen_arch_setup(void);
0054 void xen_banner(void);
0055 void xen_enable_sysenter(void);
0056 void xen_enable_syscall(void);
0057 void xen_vcpu_restore(void);
0058
0059 void xen_hvm_init_shared_info(void);
0060 void xen_unplug_emulated_devices(void);
0061
0062 void __init xen_build_dynamic_phys_to_machine(void);
0063 void __init xen_vmalloc_p2m_tree(void);
0064
0065 void xen_init_irq_ops(void);
0066 void xen_setup_timer(int cpu);
0067 void xen_setup_runstate_info(int cpu);
0068 void xen_teardown_timer(int cpu);
0069 void xen_setup_cpu_clockevents(void);
0070 void xen_save_time_memory_area(void);
0071 void xen_restore_time_memory_area(void);
0072 void xen_init_time_ops(void);
0073 void xen_hvm_init_time_ops(void);
0074
0075 irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
0076
0077 bool xen_vcpu_stolen(int vcpu);
0078
0079 void xen_vcpu_setup(int cpu);
0080 void xen_vcpu_info_reset(int cpu);
0081 void xen_setup_vcpu_info_placement(void);
0082
0083 #ifdef CONFIG_SMP
0084 void xen_smp_init(void);
0085 void __init xen_hvm_smp_init(void);
0086
0087 extern cpumask_var_t xen_cpu_initialized_map;
0088 #else
0089 static inline void xen_smp_init(void) {}
0090 static inline void xen_hvm_smp_init(void) {}
0091 #endif
0092
0093 #ifdef CONFIG_PARAVIRT_SPINLOCKS
0094 void __init xen_init_spinlocks(void);
0095 void xen_init_lock_cpu(int cpu);
0096 void xen_uninit_lock_cpu(int cpu);
0097 #else
0098 static inline void xen_init_spinlocks(void)
0099 {
0100 }
0101 static inline void xen_init_lock_cpu(int cpu)
0102 {
0103 }
0104 static inline void xen_uninit_lock_cpu(int cpu)
0105 {
0106 }
0107 #endif
0108
0109 struct dom0_vga_console_info;
0110
0111 #ifdef CONFIG_XEN_PV_DOM0
0112 void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size);
0113 #else
0114 static inline void __init xen_init_vga(const struct dom0_vga_console_info *info,
0115                        size_t size)
0116 {
0117 }
0118 #endif
0119
0120 void xen_add_preferred_consoles(void);
0121
0122 void __init xen_init_apic(void);
0123
0124 #ifdef CONFIG_XEN_EFI
0125 extern void xen_efi_init(struct boot_params *boot_params);
0126 #else
0127 static inline void __init xen_efi_init(struct boot_params *boot_params)
0128 {
0129 }
0130 #endif
0131
0132 __visible void xen_irq_enable_direct(void);
0133 __visible void xen_irq_disable_direct(void);
0134 __visible unsigned long xen_save_fl_direct(void);
0135
0136 __visible unsigned long xen_read_cr2(void);
0137 __visible unsigned long xen_read_cr2_direct(void);
0138
0139 /* These are not functions, and cannot be called normally */
0140 __visible void xen_iret(void);
0141
0142 extern int xen_panic_handler_init(void);
0143
0144 int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
0145             int (*cpu_dead_cb)(unsigned int));
0146
0147 void xen_pin_vcpu(int cpu);
0148
0149 void xen_emergency_restart(void);
0150 #ifdef CONFIG_XEN_PV
0151 void xen_pv_pre_suspend(void);
0152 void xen_pv_post_suspend(int suspend_cancelled);
0153 #else
0154 static inline void xen_pv_pre_suspend(void) {}
0155 static inline void xen_pv_post_suspend(int suspend_cancelled) {}
0156 #endif
0157
0158 #ifdef CONFIG_XEN_PVHVM
0159 void xen_hvm_post_suspend(int suspend_cancelled);
0160 #else
0161 static inline void xen_hvm_post_suspend(int suspend_cancelled) {}
0162 #endif
0163
0164 #endif /* XEN_OPS_H */