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_msi_via_irqfd_allowed;
  28 bool kvm_gsi_routing_allowed;
  29 bool kvm_gsi_direct_mapping;
  30 bool kvm_allowed;
  31 bool kvm_readonly_mem_allowed;
  32
  33 int kvm_init_vcpu(CPUState *cpu)
  34 {
  35     return -ENOSYS;
  36 }
  37
  38 void kvm_flush_coalesced_mmio_buffer(void)
  39 {
  40 }
  41
  42 void kvm_cpu_synchronize_state(CPUState *cpu)
  43 {
  44 }
  45
  46 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
  47 {
  48 }
  49
  50 void kvm_cpu_synchronize_post_init(CPUState *cpu)
  51 {
  52 }
  53
  54 int kvm_cpu_exec(CPUState *cpu)
  55 {
  56     abort();
  57 }
  58
  59 int kvm_has_sync_mmu(void)
  60 {
  61     return 0;
  62 }
  63
  64 int kvm_has_many_ioeventfds(void)
  65 {
  66     return 0;
  67 }
  68
  69 int kvm_has_pit_state2(void)
  70 {
  71     return 0;
  72 }
  73
  74 void kvm_setup_guest_memory(void *start, size_t size)
  75 {
  76 }
  77
  78 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
  79 {
  80     return -ENOSYS;
  81 }
  82
  83 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
  84                           target_ulong len, int type)
  85 {
  86     return -EINVAL;
  87 }
  88
  89 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
  90                           target_ulong len, int type)
  91 {
  92     return -EINVAL;
  93 }
  94
  95 void kvm_remove_all_breakpoints(CPUState *cpu)
  96 {
  97 }
  98
  99 #ifndef _WIN32
 100 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
 101 {
 102     abort();
 103 }
 104 #endif
 105
 106 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
 107 {
 108     return 1;
 109 }
 110
 111 int kvm_on_sigbus(int code, void *addr)
 112 {
 113     return 1;
 114 }
 115
 116 #ifndef CONFIG_USER_ONLY
 117 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 118 {
 119     return -ENOSYS;
 120 }
 121
 122 void kvm_init_irq_routing(KVMState *s)
 123 {
 124 }
 125
 126 void kvm_irqchip_release_virq(KVMState *s, int virq)
 127 {
 128 }
 129
 130 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
 131 {
 132     return -ENOSYS;
 133 }
 134
 135 int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
 136 {
 137     return -ENOSYS;
 138 }
 139
 140 int kvm_irqchip_add_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 141                                        EventNotifier *rn, int virq)
 142 {
 143     return -ENOSYS;
 144 }
 145
 146 int kvm_irqchip_remove_irqfd_notifier_gsi(KVMState *s, EventNotifier *n,
 147                                           int virq)
 148 {
 149     return -ENOSYS;
 150 }
 151
 152 bool kvm_has_free_slot(MachineState *ms)
 153 {
 154     return false;
 155 }
 156 #endif