qemu/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-common.h"
  14 #include "hw/hw.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
  34 int kvm_init_vcpu(CPUState *cpu)
  35 {
  36     return -ENOSYS;
  37 }
  38
  39 void kvm_flush_coalesced_mmio_buffer(void)
  40 {
  41 }
  42
  43 void kvm_cpu_synchronize_state(CPUState *cpu)
  44 {
  45 }
  46
  47 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
  48 {
  49 }
  50
  51 void kvm_cpu_synchronize_post_init(CPUState *cpu)
  52 {
  53 }
  54
  55 int kvm_cpu_exec(CPUState *cpu)
  56 {
  57     abort();
  58 }
  59
  60 int kvm_has_sync_mmu(void)
  61 {
  62     return 0;
  63 }
  64
  65 int kvm_has_many_ioeventfds(void)
  66 {
  67     return 0;
  68 }
  69
  70 int kvm_has_pit_state2(void)
  71 {
  72     return 0;
  73 }
  74
  75 void kvm_setup_guest_memory(void *start, size_t size)
  76 {
  77 }
  78
  79 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
  80 {
  81     return -ENOSYS;
  82 }
  83
  84 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
  85                           target_ulong len, int type)
  86 {
  87     return -EINVAL;
  88 }
  89
  90 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
  91                           target_ulong len, int type)
  92 {
  93     return -EINVAL;
  94 }
  95
  96 void kvm_remove_all_breakpoints(CPUState *cpu)
  97 {
  98 }
  99
 100 #ifndef _WIN32
 101 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
 102 {
 103     abort();
 104 }
 105 #endif
 106
 107 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
 108 {
 109     return 1;
 110 }
 111
 112 int kvm_on_sigbus(int code, void *addr)
 113 {
 114     return 1;
 115 }
 116
 117 #ifndef CONFIG_USER_ONLY
 118 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 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 {
 133     return -ENOSYS;
 134 }
 135
 136 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
 137 {
 138     return -ENOSYS;
 139 }
 140
 141 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 142                                        EventNotifier *rn, int virq)
 143 {
 144     return -ENOSYS;
 145 }
 146
 147 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 148                                           int virq)
 149 {
 150     return -ENOSYS;
 151 }
 152
 153 bool kvm_has_free_slot(MachineState *ms)
 154 {
 155     return false;
 156 }
 157 #endif