1/* 2 * QEMU KVM support 3 * 4 * Copyright IBM, Corp. 2008 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@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 "sys-queue.h" 19 20#ifdef CONFIG_KVM 21extern int kvm_allowed; 22 23#define kvm_enabled() (kvm_allowed) 24#else 25#define kvm_enabled() (0) 26#endif 27 28struct kvm_run; 29 30/* external API */ 31 32int kvm_init(int smp_cpus); 33 34int kvm_init_vcpu(CPUState *env); 35int kvm_sync_vcpus(void); 36 37int kvm_cpu_exec(CPUState *env); 38 39void kvm_set_phys_mem(target_phys_addr_t start_addr, 40 ram_addr_t size, 41 ram_addr_t phys_offset); 42 43int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, 44 target_phys_addr_t end_addr); 45 46int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size); 47int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size); 48int kvm_set_migration_log(int enable); 49 50int kvm_has_sync_mmu(void); 51 52void kvm_setup_guest_memory(void *start, size_t size); 53 54int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); 55int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size); 56 57int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr, 58 target_ulong len, int type); 59int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr, 60 target_ulong len, int type); 61void kvm_remove_all_breakpoints(CPUState *current_env); 62int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap); 63 64/* internal API */ 65 66struct KVMState; 67typedef struct KVMState KVMState; 68 69int kvm_ioctl(KVMState *s, int type, ...); 70 71int kvm_vm_ioctl(KVMState *s, int type, ...); 72 73int kvm_vcpu_ioctl(CPUState *env, int type, ...); 74 75int kvm_get_mp_state(CPUState *env); 76int kvm_put_mp_state(CPUState *env); 77 78/* Arch specific hooks */ 79 80int kvm_arch_post_run(CPUState *env, struct kvm_run *run); 81 82int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run); 83 84int kvm_arch_pre_run(CPUState *env, struct kvm_run *run); 85 86int kvm_arch_get_registers(CPUState *env); 87 88int kvm_arch_put_registers(CPUState *env); 89 90int kvm_arch_init(KVMState *s, int smp_cpus); 91 92int kvm_arch_init_vcpu(CPUState *env); 93 94struct kvm_guest_debug; 95struct kvm_debug_exit_arch; 96 97struct kvm_sw_breakpoint { 98 target_ulong pc; 99 target_ulong saved_insn; 100 int use_count; 101 TAILQ_ENTRY(kvm_sw_breakpoint) entry; 102}; 103 104TAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint); 105 106int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info); 107 108struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env, 109 target_ulong pc); 110 111int kvm_sw_breakpoints_active(CPUState *env); 112 113int kvm_arch_insert_sw_breakpoint(CPUState *current_env, 114 struct kvm_sw_breakpoint *bp); 115int kvm_arch_remove_sw_breakpoint(CPUState *current_env, 116 struct kvm_sw_breakpoint *bp); 117int kvm_arch_insert_hw_breakpoint(target_ulong addr, 118 target_ulong len, int type); 119int kvm_arch_remove_hw_breakpoint(target_ulong addr, 120 target_ulong len, int type); 121void kvm_arch_remove_all_hw_breakpoints(void); 122 123void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg); 124 125int kvm_check_extension(KVMState *s, unsigned int extension); 126 127uint32_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 132static 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