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 #include "sysemu/qemumachine.h"
  18
  19 #ifndef CONFIG_USER_ONLY
  20 #include "hw/pci/msi.h"
  21 #endif
  22
  23 KVMState *kvm_state;
  24 bool kvm_kernel_irqchip;
  25 bool kvm_async_interrupts_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 int kvm_init(QEMUMachine *machine)
  39 {
  40     return -ENOSYS;
  41 }
  42
  43 void kvm_flush_coalesced_mmio_buffer(void)
  44 {
  45 }
  46
  47 void kvm_cpu_synchronize_state(CPUState *cpu)
  48 {
  49 }
  50
  51 void kvm_cpu_synchronize_post_reset(CPUState *cpu)
  52 {
  53 }
  54
  55 void kvm_cpu_synchronize_post_init(CPUState *cpu)
  56 {
  57 }
  58
  59 int kvm_cpu_exec(CPUState *cpu)
  60 {
  61     abort();
  62 }
  63
  64 int kvm_has_sync_mmu(void)
  65 {
  66     return 0;
  67 }
  68
  69 int kvm_has_many_ioeventfds(void)
  70 {
  71     return 0;
  72 }
  73
  74 int kvm_has_pit_state2(void)
  75 {
  76     return 0;
  77 }
  78
  79 void kvm_setup_guest_memory(void *start, size_t size)
  80 {
  81 }
  82
  83 int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
  84 {
  85     return -ENOSYS;
  86 }
  87
  88 int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
  89                           target_ulong len, int type)
  90 {
  91     return -EINVAL;
  92 }
  93
  94 int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
  95                           target_ulong len, int type)
  96 {
  97     return -EINVAL;
  98 }
  99
 100 void kvm_remove_all_breakpoints(CPUState *cpu)
 101 {
 102 }
 103
 104 #ifndef _WIN32
 105 int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
 106 {
 107     abort();
 108 }
 109 #endif
 110
 111 int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
 112 {
 113     return 1;
 114 }
 115
 116 int kvm_on_sigbus(int code, void *addr)
 117 {
 118     return 1;
 119 }
 120
 121 #ifndef CONFIG_USER_ONLY
 122 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 123 {
 124     return -ENOSYS;
 125 }
 126
 127 void kvm_init_irq_routing(KVMState *s)
 128 {
 129 }
 130
 131 void kvm_irqchip_release_virq(KVMState *s, int virq)
 132 {
 133 }
 134
 135 int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
 136 {
 137     return -ENOSYS;
 138 }
 139
 140 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
 141                                    EventNotifier *rn, int virq)
 142 {
 143     return -ENOSYS;
 144 }
 145
 146 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 147 {
 148     return -ENOSYS;
 149 }
 150 #endif