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
22 #ifdef TARGET_I386
23 extern int kvm_allowed;
24
25 #define kvm_enabled() (kvm_allowed)
26 #else
27 #define kvm_enabled() (0)
28 #endif
29
30 #else
31 #define kvm_enabled() (0)
32 #endif
33
34 struct kvm_run;
35
36 /* external API */
37
38 int kvm_init(int smp_cpus);
39
40 int kvm_init_vcpu(CPUState *env);
41 int kvm_sync_vcpus(void);
42
43 int kvm_cpu_exec(CPUState *env);
44
45 void kvm_set_phys_mem(target_phys_addr_t start_addr,
46 ram_addr_t size,
47 ram_addr_t phys_offset);
48
49 int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
50 target_phys_addr_t end_addr);
51
52 int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
53 int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
54 int kvm_set_migration_log(int enable);
55
56 int kvm_has_sync_mmu(void);
57
58 void kvm_setup_guest_memory(void *start, size_t size);
59
60 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
61 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
62
63 int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
64 target_ulong len, int type);
65 int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
66 target_ulong len, int type);
67 void kvm_remove_all_breakpoints(CPUState *current_env);
68 int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
69
70 /* internal API */
71
72 struct KVMState;
73 typedef struct KVMState KVMState;
74
75 int kvm_ioctl(KVMState *s, int type, ...);
76
77 int kvm_vm_ioctl(KVMState *s, int type, ...);
78
79 int kvm_vcpu_ioctl(CPUState *env, int type, ...);
80
81 int kvm_get_mp_state(CPUState *env);
82 int kvm_put_mp_state(CPUState *env);
83
84 /* Arch specific hooks */
85
86 int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
87
88 int kvm_arch_vcpu_run(CPUState *env);
89
90 int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
91
92 int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
93
94 int kvm_arch_get_registers(CPUState *env);
95
96 int kvm_arch_put_registers(CPUState *env);
97
98 int kvm_arch_init(KVMState *s, int smp_cpus);
99
100 int kvm_arch_init_vcpu(CPUState *env);
101
102 struct kvm_guest_debug;
103 struct kvm_debug_exit_arch;
104
105 struct kvm_sw_breakpoint {
106 target_ulong pc;
107 target_ulong saved_insn;
108 int use_count;
109 QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
110 };
111
112 QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
113
114 int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
115
116 struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
117 target_ulong pc);
118
119 int kvm_sw_breakpoints_active(CPUState *env);
120
121 int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
122 struct kvm_sw_breakpoint *bp);
123 int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
124 struct kvm_sw_breakpoint *bp);
125 int kvm_arch_insert_hw_breakpoint(target_ulong addr,
126 target_ulong len, int type);
127 int kvm_arch_remove_hw_breakpoint(target_ulong addr,
128 target_ulong len, int type);
129 void kvm_arch_remove_all_hw_breakpoints(void);
130
131 void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
132
133 int kvm_check_extension(KVMState *s, unsigned int extension);
134
135 uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
136 int reg);
137
138 /* generic hooks - to be moved/refactored once there are more users */
139
cpu_synchronize_state(CPUState * env,int modified)140 static inline void cpu_synchronize_state(CPUState *env, int modified)
141 {
142 if (kvm_enabled()) {
143 if (modified)
144 kvm_arch_put_registers(env);
145 else
146 kvm_arch_get_registers(env);
147 }
148 }
149
150 #endif
151