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