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 "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
  28 void kvm_flush_coalesced_mmio_buffer(void)
  29 {
  30 }
  31
  32 void kvm_cpu_synchronize_state(CPUState *cpu)
  33 {
  34 }
  35
  36 bool kvm_has_sync_mmu(void)
  37 {
  38     return false;
  39 }
  40
  41 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
  42 {
  43     return 1;
  44 }
  45
  46 int kvm_on_sigbus(int code, void *addr)
  47 {
  48     return 1;
  49 }
  50
  51 int kvm_irqchip_add_msi_route(KVMRouteChange *c, int vector, PCIDevice *dev)
  52 {
  53     return -ENOSYS;
  54 }
  55
  56 void kvm_init_irq_routing(KVMState *s)
  57 {
  58 }
  59
  60 void kvm_irqchip_release_virq(KVMState *s, int virq)
  61 {
  62 }
  63
  64 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
  65                                  PCIDevice *dev)
  66 {
  67     return -ENOSYS;
  68 }
  69
  70 void kvm_irqchip_commit_routes(KVMState *s)
  71 {
  72 }
  73
  74 void kvm_irqchip_add_change_notifier(Notifier *n)
  75 {
  76 }
  77
  78 void kvm_irqchip_remove_change_notifier(Notifier *n)
  79 {
  80 }
  81
  82 void kvm_irqchip_change_notify(void)
  83 {
  84 }
  85
  86 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
  87                                        EventNotifier *rn, int virq)
  88 {
  89     return -ENOSYS;
  90 }
  91
  92 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
  93                                           int virq)
  94 {
  95     return -ENOSYS;
  96 }
  97
  98 unsigned int kvm_get_max_memslots(void)
  99 {
 100     return 0;
 101 }
 102
 103 unsigned int kvm_get_free_memslots(void)
 104 {
 105     return 0;
 106 }
 107
 108 void kvm_init_cpu_signals(CPUState *cpu)
 109 {
 110     abort();
 111 }
 112
 113 bool kvm_arm_supports_user_irq(void)
 114 {
 115     return false;
 116 }
 117
 118 bool kvm_dirty_ring_enabled(void)
 119 {
 120     return false;
 121 }
 122
 123 uint32_t kvm_dirty_ring_size(void)
 124 {
 125     return 0;
 126 }