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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_eventfds_allowed;
26 bool kvm_irqfds_allowed;
27 bool kvm_msi_via_irqfd_allowed;
28 bool kvm_gsi_routing_allowed;
29 bool kvm_gsi_direct_mapping;
30 bool kvm_allowed;
31 bool kvm_readonly_mem_allowed;
32
33 int kvm_init_vcpu(CPUState *cpu)
34 {
35 return -ENOSYS;
36 }
37
38 void kvm_flush_coalesced_mmio_buffer(void)
39 {
40 }
41
42 void kvm_cpu_synchronize_state(CPUState *cpu)
43 {
44 }
45
46 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
47 {
48 }
49
50 void kvm_cpu_synchronize_post_init(CPUState *cpu)
51 {
52 }
53
54 int kvm_cpu_exec(CPUState *cpu)
55 {
56 abort();
57 }
58
59 int kvm_has_sync_mmu(void)
60 {
61 return 0;
62 }
63
64 int kvm_has_many_ioeventfds(void)
65 {
66 return 0;
67 }
68
69 int kvm_has_pit_state2(void)
70 {
71 return 0;
72 }
73
74 void kvm_setup_guest_memory(void *start, size_t size)
75 {
76 }
77
78 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
79 {
80 return -ENOSYS;
81 }
82
83 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
84 target_ulong len, int type)
85 {
86 return -EINVAL;
87 }
88
89 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
90 target_ulong len, int type)
91 {
92 return -EINVAL;
93 }
94
95 void kvm_remove_all_breakpoints(CPUState *cpu)
96 {
97 }
98
99 #ifndef _WIN32
100 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
101 {
102 abort();
103 }
104 #endif
105
106 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
107 {
108 return 1;
109 }
110
111 int kvm_on_sigbus(int code, void *addr)
112 {
113 return 1;
114 }
115
116 #ifndef CONFIG_USER_ONLY
117 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
118 {
119 return -ENOSYS;
120 }
121
122 void kvm_init_irq_routing(KVMState *s)
123 {
124 }
125
126 void kvm_irqchip_release_virq(KVMState *s, int virq)
127 {
128 }
129
130 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
131 {
132 return -ENOSYS;
133 }
134
135 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
136 {
137 return -ENOSYS;
138 }
139
140 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
141 EventNotifier *rn, int virq)
142 {
143 return -ENOSYS;
144 }
145
146 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
147 {
148 return -ENOSYS;
149 }
150
151 bool kvm_has_free_slot(MachineState *ms)
152 {
153 return false;
154 }
155 #endif