1 /* 2 * QEMU KVM support 3 * 4 * Copyright IBM, Corp. 2008 5 * 6 * Authors: 7 * Anthony Liguori <aliguori (at) us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 * 12 */ 13 14 #ifndef QEMU_KVM_H 15 #define QEMU_KVM_H 16 17 #include "config.h" 18 #include "qemu-queue.h" 19 20 #ifdef CONFIG_KVM 21 extern int kvm_allowed; 22 23 #define kvm_enabled() (kvm_allowed) 24 #else 25 #define kvm_enabled() (0) 26 #endif 27 28 struct kvm_run; 29 30 /* external API */ 31 32 int kvm_init(int smp_cpus); 33 34 int kvm_init_vcpu(CPUState *env); 35 int kvm_sync_vcpus(void); 36 37 int kvm_cpu_exec(CPUState *env); 38 39 void kvm_set_phys_mem(target_phys_addr_t start_addr, 40 ram_addr_t size, 41 ram_addr_t phys_offset); 42 43 int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, 44 target_phys_addr_t end_addr); 45 46 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size); 47 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size); 48 int kvm_set_migration_log(int enable); 49 50 int kvm_has_sync_mmu(void); 51 52 void kvm_setup_guest_memory(void *start, size_t size); 53 54 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); 55 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); 56 57 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr, 58 target_ulong len, int type); 59 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr, 60 target_ulong len, int type); 61 void kvm_remove_all_breakpoints(CPUState *current_env); 62 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap); 63 64 /* internal API */ 65 66 struct KVMState; 67 typedef struct KVMState KVMState; 68 69 int kvm_ioctl(KVMState *s, int type, ...); 70 71 int kvm_vm_ioctl(KVMState *s, int type, ...); 72 73 int kvm_vcpu_ioctl(CPUState *env, int type, ...); 74 75 int kvm_get_mp_state(CPUState *env); 76 int kvm_put_mp_state(CPUState *env); 77 78 /* Arch specific hooks */ 79 80 int kvm_arch_post_run(CPUState *env, struct kvm_run *run); 81 82 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run); 83 84 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run); 85 86 int kvm_arch_get_registers(CPUState *env); 87 88 int kvm_arch_put_registers(CPUState *env); 89 90 int kvm_arch_init(KVMState *s, int smp_cpus); 91 92 int kvm_arch_init_vcpu(CPUState *env); 93 94 struct kvm_guest_debug; 95 struct kvm_debug_exit_arch; 96 97 struct kvm_sw_breakpoint { 98 target_ulong pc; 99 target_ulong saved_insn; 100 int use_count; 101 QTAILQ_ENTRY(kvm_sw_breakpoint) entry; 102 }; 103 104 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); 105 106 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info); 107 108 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env, 109 target_ulong pc); 110 111 int kvm_sw_breakpoints_active(CPUState *env); 112 113 int kvm_arch_insert_sw_breakpoint(CPUState *current_env, 114 struct kvm_sw_breakpoint *bp); 115 int kvm_arch_remove_sw_breakpoint(CPUState *current_env, 116 struct kvm_sw_breakpoint *bp); 117 int kvm_arch_insert_hw_breakpoint(target_ulong addr, 118 target_ulong len, int type); 119 int kvm_arch_remove_hw_breakpoint(target_ulong addr, 120 target_ulong len, int type); 121 void kvm_arch_remove_all_hw_breakpoints(void); 122 123 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg); 124 125 int kvm_check_extension(KVMState *s, unsigned int extension); 126 127 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function, 128 int reg); 129 130 /* generic hooks - to be moved/refactored once there are more users */ 131 132 static inline void cpu_synchronize_state(CPUState *env, int modified) 133 { 134 if (kvm_enabled()) { 135 if (modified) 136 kvm_arch_put_registers(env); 137 else 138 kvm_arch_get_registers(env); 139 } 140 } 141 142 #endif 143
