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[qemu.git] / kvm-stub.c
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/osdep.h"
14 #include "qemu-common.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_resamplefds_allowed;
28 bool kvm_msi_via_irqfd_allowed;
29 bool kvm_gsi_routing_allowed;
30 bool kvm_gsi_direct_mapping;
31 bool kvm_allowed;
32 bool kvm_readonly_mem_allowed;
33 bool kvm_ioeventfd_any_length_allowed;
34
35 int kvm_destroy_vcpu(CPUState *cpu)
36 {
37 return -ENOSYS;
38 }
39
40 int kvm_init_vcpu(CPUState *cpu)
41 {
42 return -ENOSYS;
43 }
44
45 void kvm_flush_coalesced_mmio_buffer(void)
46 {
47 }
48
49 void kvm_cpu_synchronize_state(CPUState *cpu)
50 {
51 }
52
53 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
54 {
55 }
56
57 void kvm_cpu_synchronize_post_init(CPUState *cpu)
58 {
59 }
60
61 int kvm_cpu_exec(CPUState *cpu)
62 {
63 abort();
64 }
65
66 int kvm_has_sync_mmu(void)
67 {
68 return 0;
69 }
70
71 int kvm_has_many_ioeventfds(void)
72 {
73 return 0;
74 }
75
76 void kvm_setup_guest_memory(void *start, size_t size)
77 {
78 }
79
80 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
81 {
82 return -ENOSYS;
83 }
84
85 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
86 target_ulong len, int type)
87 {
88 return -EINVAL;
89 }
90
91 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
92 target_ulong len, int type)
93 {
94 return -EINVAL;
95 }
96
97 void kvm_remove_all_breakpoints(CPUState *cpu)
98 {
99 }
100
101 #ifndef _WIN32
102 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
103 {
104 abort();
105 }
106 #endif
107
108 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
109 {
110 return 1;
111 }
112
113 int kvm_on_sigbus(int code, void *addr)
114 {
115 return 1;
116 }
117
118 #ifndef CONFIG_USER_ONLY
119 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg, PCIDevice *dev)
120 {
121 return -ENOSYS;
122 }
123
124 void kvm_init_irq_routing(KVMState *s)
125 {
126 }
127
128 void kvm_irqchip_release_virq(KVMState *s, int virq)
129 {
130 }
131
132 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
133 PCIDevice *dev)
134 {
135 return -ENOSYS;
136 }
137
138 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
139 {
140 return -ENOSYS;
141 }
142
143 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
144 EventNotifier *rn, int virq)
145 {
146 return -ENOSYS;
147 }
148
149 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
150 int virq)
151 {
152 return -ENOSYS;
153 }
154
155 bool kvm_has_free_slot(MachineState *ms)
156 {
157 return false;
158 }
159 #endif