Merge remote-tracking branch 'remotes/marcel/tags/rdma-pull-request' into staging
[qemu.git] / accel / stubs / 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 "cpu.h"
15 #include "sysemu/kvm.h"
16
17 #ifndef CONFIG_USER_ONLY
18 #include "hw/pci/msi.h"
19 #endif
20
21 KVMState *kvm_state;
22 bool kvm_kernel_irqchip;
23 bool kvm_async_interrupts_allowed;
24 bool kvm_eventfds_allowed;
25 bool kvm_irqfds_allowed;
26 bool kvm_resamplefds_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 bool kvm_ioeventfd_any_length_allowed;
33 bool kvm_msi_use_devid;
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 bool kvm_has_sync_mmu(void)
67 {
68 return false;
69 }
70
71 int kvm_has_many_ioeventfds(void)
72 {
73 return 0;
74 }
75
76 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
77 {
78 return -ENOSYS;
79 }
80
81 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
82 target_ulong len, int type)
83 {
84 return -EINVAL;
85 }
86
87 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
88 target_ulong len, int type)
89 {
90 return -EINVAL;
91 }
92
93 void kvm_remove_all_breakpoints(CPUState *cpu)
94 {
95 }
96
97 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
98 {
99 return 1;
100 }
101
102 int kvm_on_sigbus(int code, void *addr)
103 {
104 return 1;
105 }
106
107 bool kvm_memcrypt_enabled(void)
108 {
109 return false;
110 }
111
112 int kvm_memcrypt_encrypt_data(uint8_t *ptr, uint64_t len)
113 {
114 return 1;
115 }
116
117 #ifndef CONFIG_USER_ONLY
118 int kvm_irqchip_add_msi_route(KVMState *s, int vector, PCIDevice *dev)
119 {
120 return -ENOSYS;
121 }
122
123 void kvm_init_irq_routing(KVMState *s)
124 {
125 }
126
127 void kvm_irqchip_release_virq(KVMState *s, int virq)
128 {
129 }
130
131 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
132 PCIDevice *dev)
133 {
134 return -ENOSYS;
135 }
136
137 void kvm_irqchip_commit_routes(KVMState *s)
138 {
139 }
140
141 void kvm_irqchip_add_change_notifier(Notifier *n)
142 {
143 }
144
145 void kvm_irqchip_remove_change_notifier(Notifier *n)
146 {
147 }
148
149 void kvm_irqchip_change_notify(void)
150 {
151 }
152
153 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
154 {
155 return -ENOSYS;
156 }
157
158 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
159 EventNotifier *rn, int virq)
160 {
161 return -ENOSYS;
162 }
163
164 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
165 int virq)
166 {
167 return -ENOSYS;
168 }
169
170 bool kvm_has_free_slot(MachineState *ms)
171 {
172 return false;
173 }
174
175 void kvm_init_cpu_signals(CPUState *cpu)
176 {
177 abort();
178 }
179
180 bool kvm_arm_supports_user_irq(void)
181 {
182 return false;
183 }
184 #endif