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 "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
cpu_synchronize_state(CPUState * env,int modified)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