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 "sysemu/kvm.h"
15 #include "hw/pci/msi.h"
16
17 KVMState *kvm_state;
18 bool kvm_kernel_irqchip;
19 bool kvm_async_interrupts_allowed;
20 bool kvm_resamplefds_allowed;
21 bool kvm_msi_via_irqfd_allowed;
22 bool kvm_gsi_routing_allowed;
23 bool kvm_gsi_direct_mapping;
24 bool kvm_allowed;
25 bool kvm_readonly_mem_allowed;
26 bool kvm_msi_use_devid;
27
kvm_flush_coalesced_mmio_buffer(void)28 void kvm_flush_coalesced_mmio_buffer(void)
29 {
30 }
31
kvm_cpu_synchronize_state(CPUState * cpu)32 void kvm_cpu_synchronize_state(CPUState *cpu)
33 {
34 }
35
kvm_has_sync_mmu(void)36 bool kvm_has_sync_mmu(void)
37 {
38 return false;
39 }
40
kvm_on_sigbus_vcpu(CPUState * cpu,int code,void * addr)41 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
42 {
43 return 1;
44 }
45
kvm_on_sigbus(int code,void * addr)46 int kvm_on_sigbus(int code, void *addr)
47 {
48 return 1;
49 }
50
kvm_irqchip_add_msi_route(KVMRouteChange * c,int vector,PCIDevice * dev)51 int kvm_irqchip_add_msi_route(KVMRouteChange *c, int vector, PCIDevice *dev)
52 {
53 return -ENOSYS;
54 }
55
kvm_init_irq_routing(KVMState * s)56 void kvm_init_irq_routing(KVMState *s)
57 {
58 }
59
kvm_irqchip_release_virq(KVMState * s,int virq)60 void kvm_irqchip_release_virq(KVMState *s, int virq)
61 {
62 }
63
kvm_irqchip_update_msi_route(KVMState * s,int virq,MSIMessage msg,PCIDevice * dev)64 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
65 PCIDevice *dev)
66 {
67 return -ENOSYS;
68 }
69
kvm_irqchip_commit_routes(KVMState * s)70 void kvm_irqchip_commit_routes(KVMState *s)
71 {
72 }
73
kvm_irqchip_add_change_notifier(Notifier * n)74 void kvm_irqchip_add_change_notifier(Notifier *n)
75 {
76 }
77
kvm_irqchip_remove_change_notifier(Notifier * n)78 void kvm_irqchip_remove_change_notifier(Notifier *n)
79 {
80 }
81
kvm_irqchip_change_notify(void)82 void kvm_irqchip_change_notify(void)
83 {
84 }
85
kvm_irqchip_add_irqfd_notifier_gsi(KVMState * s,EventNotifier * n,EventNotifier * rn,int virq)86 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
87 EventNotifier *rn, int virq)
88 {
89 return -ENOSYS;
90 }
91
kvm_irqchip_remove_irqfd_notifier_gsi(KVMState * s,EventNotifier * n,int virq)92 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
93 int virq)
94 {
95 return -ENOSYS;
96 }
97
kvm_get_max_memslots(void)98 unsigned int kvm_get_max_memslots(void)
99 {
100 return 0;
101 }
102
kvm_get_free_memslots(void)103 unsigned int kvm_get_free_memslots(void)
104 {
105 return 0;
106 }
107
kvm_init_cpu_signals(CPUState * cpu)108 void kvm_init_cpu_signals(CPUState *cpu)
109 {
110 abort();
111 }
112
kvm_arm_supports_user_irq(void)113 bool kvm_arm_supports_user_irq(void)
114 {
115 return false;
116 }
117
kvm_dirty_ring_enabled(void)118 bool kvm_dirty_ring_enabled(void)
119 {
120 return false;
121 }
122
kvm_dirty_ring_size(void)123 uint32_t kvm_dirty_ring_size(void)
124 {
125 return 0;
126 }
127
kvm_hwpoisoned_mem(void)128 bool kvm_hwpoisoned_mem(void)
129 {
130 return false;
131 }
132
kvm_create_guest_memfd(uint64_t size,uint64_t flags,Error ** errp)133 int kvm_create_guest_memfd(uint64_t size, uint64_t flags, Error **errp)
134 {
135 return -ENOSYS;
136 }
137