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 "system/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_has_sync_mmu(void)32 bool kvm_has_sync_mmu(void)
33 {
34 return false;
35 }
36
kvm_on_sigbus_vcpu(CPUState * cpu,int code,void * addr)37 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
38 {
39 return 1;
40 }
41
kvm_on_sigbus(int code,void * addr)42 int kvm_on_sigbus(int code, void *addr)
43 {
44 return 1;
45 }
46
kvm_irqchip_add_msi_route(KVMRouteChange * c,int vector,PCIDevice * dev)47 int kvm_irqchip_add_msi_route(KVMRouteChange *c, int vector, PCIDevice *dev)
48 {
49 return -ENOSYS;
50 }
51
kvm_init_irq_routing(KVMState * s)52 void kvm_init_irq_routing(KVMState *s)
53 {
54 }
55
kvm_irqchip_release_virq(KVMState * s,int virq)56 void kvm_irqchip_release_virq(KVMState *s, int virq)
57 {
58 }
59
kvm_irqchip_update_msi_route(KVMState * s,int virq,MSIMessage msg,PCIDevice * dev)60 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
61 PCIDevice *dev)
62 {
63 return -ENOSYS;
64 }
65
kvm_irqchip_commit_routes(KVMState * s)66 void kvm_irqchip_commit_routes(KVMState *s)
67 {
68 }
69
kvm_irqchip_add_change_notifier(Notifier * n)70 void kvm_irqchip_add_change_notifier(Notifier *n)
71 {
72 }
73
kvm_irqchip_remove_change_notifier(Notifier * n)74 void kvm_irqchip_remove_change_notifier(Notifier *n)
75 {
76 }
77
kvm_irqchip_change_notify(void)78 void kvm_irqchip_change_notify(void)
79 {
80 }
81
kvm_irqchip_add_irqfd_notifier_gsi(KVMState * s,EventNotifier * n,EventNotifier * rn,int virq)82 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
83 EventNotifier *rn, int virq)
84 {
85 return -ENOSYS;
86 }
87
kvm_irqchip_remove_irqfd_notifier_gsi(KVMState * s,EventNotifier * n,int virq)88 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
89 int virq)
90 {
91 return -ENOSYS;
92 }
93
kvm_get_max_memslots(void)94 unsigned int kvm_get_max_memslots(void)
95 {
96 return 0;
97 }
98
kvm_get_free_memslots(void)99 unsigned int kvm_get_free_memslots(void)
100 {
101 return 0;
102 }
103
kvm_arm_supports_user_irq(void)104 bool kvm_arm_supports_user_irq(void)
105 {
106 return false;
107 }
108
kvm_dirty_ring_enabled(void)109 bool kvm_dirty_ring_enabled(void)
110 {
111 return false;
112 }
113
kvm_dirty_ring_size(void)114 uint32_t kvm_dirty_ring_size(void)
115 {
116 return 0;
117 }
118
kvm_hwpoisoned_mem(void)119 bool kvm_hwpoisoned_mem(void)
120 {
121 return false;
122 }
123
kvm_create_guest_memfd(uint64_t size,uint64_t flags,Error ** errp)124 int kvm_create_guest_memfd(uint64_t size, uint64_t flags, Error **errp)
125 {
126 return -ENOSYS;
127 }
128