xen-ops.h (4316B)
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 79void xen_vcpu_setup(int cpu); 80void xen_vcpu_info_reset(int cpu); 81void xen_setup_vcpu_info_placement(void); 82 83#ifdef CONFIG_SMP 84void xen_smp_init(void); 85void __init xen_hvm_smp_init(void); 86 87extern cpumask_var_t xen_cpu_initialized_map; 88#else 89static inline void xen_smp_init(void) {} 90static inline void xen_hvm_smp_init(void) {} 91#endif 92 93#ifdef CONFIG_PARAVIRT_SPINLOCKS 94void __init xen_init_spinlocks(void); 95void xen_init_lock_cpu(int cpu); 96void xen_uninit_lock_cpu(int cpu); 97#else 98static inline void xen_init_spinlocks(void) 99{ 100} 101static inline void xen_init_lock_cpu(int cpu) 102{ 103} 104static inline void xen_uninit_lock_cpu(int cpu) 105{ 106} 107#endif 108 109struct dom0_vga_console_info; 110 111#ifdef CONFIG_XEN_PV_DOM0 112void __init xen_init_vga(const struct dom0_vga_console_info *, size_t size); 113#else 114static inline void __init xen_init_vga(const struct dom0_vga_console_info *info, 115 size_t size) 116{ 117} 118#endif 119 120void xen_add_preferred_consoles(void); 121 122void __init xen_init_apic(void); 123 124#ifdef CONFIG_XEN_EFI 125extern void xen_efi_init(struct boot_params *boot_params); 126#else 127static inline void __init xen_efi_init(struct boot_params *boot_params) 128{ 129} 130#endif 131 132__visible void xen_irq_enable_direct(void); 133__visible void xen_irq_disable_direct(void); 134__visible unsigned long xen_save_fl_direct(void); 135 136__visible unsigned long xen_read_cr2(void); 137__visible unsigned long xen_read_cr2_direct(void); 138 139/* These are not functions, and cannot be called normally */ 140__visible void xen_iret(void); 141 142extern int xen_panic_handler_init(void); 143 144int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int), 145 int (*cpu_dead_cb)(unsigned int)); 146 147void xen_pin_vcpu(int cpu); 148 149void xen_emergency_restart(void); 150#ifdef CONFIG_XEN_PV 151void xen_pv_pre_suspend(void); 152void xen_pv_post_suspend(int suspend_cancelled); 153#else 154static inline void xen_pv_pre_suspend(void) {} 155static inline void xen_pv_post_suspend(int suspend_cancelled) {} 156#endif 157 158#ifdef CONFIG_XEN_PVHVM 159void xen_hvm_post_suspend(int suspend_cancelled); 160#else 161static inline void xen_hvm_post_suspend(int suspend_cancelled) {} 162#endif 163 164#endif /* XEN_OPS_H */