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