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1 /*
2  * QEMU KVM stub
3  *
4  * Copyright Red Hat, Inc. 2010
5  *
6  * Author: Paolo Bonzini     <pbonzini@redhat.com>
7  *
8  * This work is licensed under the terms of the GNU GPL, version 2 or later.
9  * See the COPYING file in the top-level directory.
10  *
11  */
12
13 #include "qemu-common.h"
14 #include "hw/hw.h"
15 #include "cpu.h"
16 #include "sysemu/kvm.h"
17
18 #ifndef CONFIG_USER_ONLY
19 #include "hw/pci/msi.h"
20 #endif
21
22 KVMState *kvm_state;
23 bool kvm_kernel_irqchip;
24 bool kvm_async_interrupts_allowed;
25 bool kvm_irqfds_allowed;
26 bool kvm_msi_via_irqfd_allowed;
27 bool kvm_gsi_routing_allowed;
28 bool kvm_gsi_direct_mapping;
29 bool kvm_allowed;
30 bool kvm_readonly_mem_allowed;
31
32 int kvm_init_vcpu(CPUState *cpu)
33 {
34     return -ENOSYS;
35 }
36
37 int kvm_init(void)
38 {
39     return -ENOSYS;
40 }
41
42 void kvm_flush_coalesced_mmio_buffer(void)
43 {
44 }
45
46 void kvm_cpu_synchronize_state(CPUState *cpu)
47 {
48 }
49
50 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
51 {
52 }
53
54 void kvm_cpu_synchronize_post_init(CPUState *cpu)
55 {
56 }
57
58 int kvm_cpu_exec(CPUState *cpu)
59 {
60     abort();
61 }
62
63 int kvm_has_sync_mmu(void)
64 {
65     return 0;
66 }
67
68 int kvm_has_many_ioeventfds(void)
69 {
70     return 0;
71 }
72
73 int kvm_has_pit_state2(void)
74 {
75     return 0;
76 }
77
78 void kvm_setup_guest_memory(void *start, size_t size)
79 {
80 }
81
82 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
83 {
84     return -ENOSYS;
85 }
86
87 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
88                           target_ulong len, int type)
89 {
90     return -EINVAL;
91 }
92
93 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
94                           target_ulong len, int type)
95 {
96     return -EINVAL;
97 }
98
99 void kvm_remove_all_breakpoints(CPUState *cpu)
100 {
101 }
102
103 #ifndef _WIN32
104 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
105 {
106     abort();
107 }
108 #endif
109
110 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
111 {
112     return 1;
113 }
114
115 int kvm_on_sigbus(int code, void *addr)
116 {
117     return 1;
118 }
119
120 #ifndef CONFIG_USER_ONLY
121 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
122 {
123     return -ENOSYS;
124 }
125
126 void kvm_init_irq_routing(KVMState *s)
127 {
128 }
129
130 void kvm_irqchip_release_virq(KVMState *s, int virq)
131 {
132 }
133
134 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
135 {
136     return -ENOSYS;
137 }
138
139 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
140                                    EventNotifier *rn, int virq)
141 {
142     return -ENOSYS;
143 }
144
145 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
146 {
147     return -ENOSYS;
148 }
149 #endif