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 void kvm_setup_guest_memory(void *start, size_t size)
  71 {
  72 }
  73
  74 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
  75 {
  76     return -ENOSYS;
  77 }
  78
  79 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
  80                           target_ulong len, int type)
  81 {
  82     return -EINVAL;
  83 }
  84
  85 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
  86                           target_ulong len, int type)
  87 {
  88     return -EINVAL;
  89 }
  90
  91 void kvm_remove_all_breakpoints(CPUState *cpu)
  92 {
  93 }
  94
  95 #ifndef _WIN32
  96 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
  97 {
  98     abort();
  99 }
 100 #endif
 101
 102 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
 103 {
 104     return 1;
 105 }
 106
 107 int kvm_on_sigbus(int code, void *addr)
 108 {
 109     return 1;
 110 }
 111
 112 #ifndef CONFIG_USER_ONLY
 113 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg, PCIDevice *dev)
 114 {
 115     return -ENOSYS;
 116 }
 117
 118 void kvm_init_irq_routing(KVMState *s)
 119 {
 120 }
 121
 122 void kvm_irqchip_release_virq(KVMState *s, int virq)
 123 {
 124 }
 125
 126 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg,
 127                                  PCIDevice *dev)
 128 {
 129     return -ENOSYS;
 130 }
 131
 132 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
 133 {
 134     return -ENOSYS;
 135 }
 136
 137 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 138                                        EventNotifier *rn, int virq)
 139 {
 140     return -ENOSYS;
 141 }
 142
 143 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 144                                           int virq)
 145 {
 146     return -ENOSYS;
 147 }
 148
 149 bool kvm_has_free_slot(MachineState *ms)
 150 {
 151     return false;
 152 }
 153 #endif