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 "cpu.h"
19#include "qemu/queue.h"
20
21#ifdef CONFIG_KVM
22
23#ifdef TARGET_I386
24extern int kvm_allowed;
25
26#define kvm_enabled() (kvm_allowed)
27#else
28#define kvm_enabled() (0)
29#endif
30
31#else
32#define kvm_enabled() (0)
33#endif
34
35struct kvm_run;
36
37/* external API */
38
39int kvm_init(int smp_cpus);
40
41int kvm_init_vcpu(CPUState *env);
42int kvm_sync_vcpus(void);
43
44int kvm_cpu_exec(CPUState *env);
45
46void kvm_set_phys_mem(hwaddr start_addr,
47                      ram_addr_t size,
48                      ram_addr_t phys_offset);
49
50int kvm_physical_sync_dirty_bitmap(hwaddr start_addr,
51                                   hwaddr end_addr);
52
53int kvm_log_start(hwaddr phys_addr, ram_addr_t size);
54int kvm_log_stop(hwaddr phys_addr, ram_addr_t size);
55int kvm_set_migration_log(int enable);
56
57int kvm_has_sync_mmu(void);
58
59void kvm_setup_guest_memory(void *start, size_t size);
60
61int kvm_coalesce_mmio_region(hwaddr start, ram_addr_t size);
62int kvm_uncoalesce_mmio_region(hwaddr start, ram_addr_t size);
63
64int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
65                          target_ulong len, int type);
66int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
67                          target_ulong len, int type);
68void kvm_remove_all_breakpoints(CPUState *current_env);
69int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap);
70
71/* internal API */
72
73struct KVMState;
74typedef struct KVMState KVMState;
75
76int kvm_ioctl(KVMState *s, int type, ...);
77
78int kvm_vm_ioctl(KVMState *s, int type, ...);
79
80int kvm_vcpu_ioctl(CPUState *env, int type, ...);
81
82int kvm_get_mp_state(CPUState *env);
83int kvm_put_mp_state(CPUState *env);
84
85/* Arch specific hooks */
86
87int kvm_arch_post_run(CPUState *env, struct kvm_run *run);
88
89int kvm_arch_vcpu_run(CPUState *env);
90
91int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run);
92
93int kvm_arch_pre_run(CPUState *env, struct kvm_run *run);
94
95int kvm_arch_get_registers(CPUState *env);
96
97int kvm_arch_put_registers(CPUState *env);
98
99int kvm_arch_init(KVMState *s, int smp_cpus);
100
101int kvm_arch_init_vcpu(CPUState *env);
102
103struct kvm_guest_debug;
104struct kvm_debug_exit_arch;
105
106struct kvm_sw_breakpoint {
107    target_ulong pc;
108    target_ulong saved_insn;
109    int use_count;
110    QTAILQ_ENTRY(kvm_sw_breakpoint) entry;
111};
112
113QTAILQ_HEAD(kvm_sw_breakpoint_head, kvm_sw_breakpoint);
114
115int kvm_arch_debug(struct kvm_debug_exit_arch *arch_info);
116
117struct kvm_sw_breakpoint *kvm_find_sw_breakpoint(CPUState *env,
118                                                 target_ulong pc);
119
120int kvm_sw_breakpoints_active(CPUState *env);
121
122int kvm_arch_insert_sw_breakpoint(CPUState *current_env,
123                                  struct kvm_sw_breakpoint *bp);
124int kvm_arch_remove_sw_breakpoint(CPUState *current_env,
125                                  struct kvm_sw_breakpoint *bp);
126int kvm_arch_insert_hw_breakpoint(target_ulong addr,
127                                  target_ulong len, int type);
128int kvm_arch_remove_hw_breakpoint(target_ulong addr,
129                                  target_ulong len, int type);
130void kvm_arch_remove_all_hw_breakpoints(void);
131
132void kvm_arch_update_guest_debug(CPUState *env, struct kvm_guest_debug *dbg);
133
134int kvm_check_extension(KVMState *s, unsigned int extension);
135
136uint32_t kvm_arch_get_supported_cpuid(CPUState *env, uint32_t function,
137                                      int reg);
138
139/* generic hooks - to be moved/refactored once there are more users */
140#ifdef CONFIG_HAX
141void hax_vcpu_sync_state(CPUState *cpu, int modified);
142#endif
143static inline void cpu_synchronize_state(CPUState *cpu, int modified)
144{
145    if (kvm_enabled()) {
146        if (modified)
147            kvm_arch_put_registers(cpu);
148        else
149            kvm_arch_get_registers(cpu);
150    }
151#ifdef CONFIG_HAX
152    hax_vcpu_sync_state(cpu, modified);
153#endif
154}
155
156int kvm_get_sregs(CPUState *env);
157
158
159#endif
160