kvm.h revision 08c7228c50f8b27acba312c4d2f0c07d0ab6a06b 
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
23extern 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
34struct kvm_run;
35
36/* external API */
37
38int kvm_init(int smp_cpus);
39
40int kvm_init_vcpu(CPUState *env);
41int kvm_sync_vcpus(void);
42
43int kvm_cpu_exec(CPUState *env);
44
45void kvm_set_phys_mem(target_phys_addr_t start_addr,
46                      ram_addr_t size,
47                      ram_addr_t phys_offset);
48
49int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
50                                   target_phys_addr_t end_addr);
51
52int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size);
53int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size);
54int kvm_set_migration_log(int enable);
55
56int kvm_has_sync_mmu(void);
57
58void kvm_setup_guest_memory(void *start, size_t size);
59
60int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
61int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size);
62
63int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
64                          target_ulong len, int type);
65int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
66                          target_ulong len, int type);
67void kvm_remove_all_breakpoints(CPUState *current_env);
68int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
69
70/* internal API */
71
72struct KVMState;
73typedef struct KVMState KVMState;
74
75int kvm_ioctl(KVMState *s, int type, ...);
76
77int kvm_vm_ioctl(KVMState *s, int type, ...);
78
79int kvm_vcpu_ioctl(CPUState *env, int type, ...);
80
81int kvm_get_mp_state(CPUState *env);
82int kvm_put_mp_state(CPUState *env);
83
84/* Arch specific hooks */
85
86int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
87
88int kvm_arch_vcpu_run(CPUState *env);
89
90int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
91
92int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
93
94int kvm_arch_get_registers(CPUState *env);
95
96int kvm_arch_put_registers(CPUState *env);
97
98int kvm_arch_init(KVMState *s, int smp_cpus);
99
100int kvm_arch_init_vcpu(CPUState *env);
101
102struct kvm_guest_debug;
103struct kvm_debug_exit_arch;
104
105struct 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
112QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
113
114int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
115
116struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
117                                                 target_ulong pc);
118
119int kvm_sw_breakpoints_active(CPUState *env);
120
121int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
122                                  struct kvm_sw_breakpoint *bp);
123int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
124                                  struct kvm_sw_breakpoint *bp);
125int kvm_arch_insert_hw_breakpoint(target_ulong addr,
126                                  target_ulong len, int type);
127int kvm_arch_remove_hw_breakpoint(target_ulong addr,
128                                  target_ulong len, int type);
129void kvm_arch_remove_all_hw_breakpoints(void);
130
131void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
132
133int kvm_check_extension(KVMState *s, unsigned int extension);
134
135uint32_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#ifdef CONFIG_HAX
140void hax_vcpu_sync_state(CPUState *env, int modified);
141#endif
142static inline void cpu_synchronize_state(CPUState *env, int modified)
143{
144    if (kvm_enabled()) {
145        if (modified)
146            kvm_arch_put_registers(env);
147        else
148            kvm_arch_get_registers(env);
149    }
150#ifdef CONFIG_HAX
151    hax_vcpu_sync_state(env, modified);
152#endif
153}
154
155int kvm_get_sregs(CPUState *env);
156
157
158#endif
159