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 "hw/pci/msi.h"
  16 #include "cpu.h"
  17 #include "exec/gdbstub.h"
  18 #include "sysemu/kvm.h"
  19
  20 KVMState *kvm_state;
  21 bool kvm_kernel_irqchip;
  22 bool kvm_async_interrupts_allowed;
  23 bool kvm_irqfds_allowed;
  24 bool kvm_msi_via_irqfd_allowed;
  25 bool kvm_gsi_routing_allowed;
  26
  27 int kvm_init_vcpu(CPUArchState *env)
  28 {
  29     return -ENOSYS;
  30 }
  31
  32 int kvm_init(void)
  33 {
  34     return -ENOSYS;
  35 }
  36
  37 void kvm_flush_coalesced_mmio_buffer(void)
  38 {
  39 }
  40
  41 void kvm_cpu_synchronize_state(CPUArchState *env)
  42 {
  43 }
  44
  45 void kvm_cpu_synchronize_post_reset(CPUArchState *env)
  46 {
  47 }
  48
  49 void kvm_cpu_synchronize_post_init(CPUArchState *env)
  50 {
  51 }
  52
  53 int kvm_cpu_exec(CPUArchState *env)
  54 {
  55     abort ();
  56 }
  57
  58 int kvm_has_sync_mmu(void)
  59 {
  60     return 0;
  61 }
  62
  63 int kvm_has_many_ioeventfds(void)
  64 {
  65     return 0;
  66 }
  67
  68 int kvm_has_pit_state2(void)
  69 {
  70     return 0;
  71 }
  72
  73 void kvm_setup_guest_memory(void *start, size_t size)
  74 {
  75 }
  76
  77 int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap)
  78 {
  79     return -ENOSYS;
  80 }
  81
  82 int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr,
  83                           target_ulong len, int type)
  84 {
  85     return -EINVAL;
  86 }
  87
  88 int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr,
  89                           target_ulong len, int type)
  90 {
  91     return -EINVAL;
  92 }
  93
  94 void kvm_remove_all_breakpoints(CPUArchState *current_env)
  95 {
  96 }
  97
  98 #ifndef _WIN32
  99 int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset)
 100 {
 101     abort();
 102 }
 103 #endif
 104
 105 int kvm_set_ioeventfd_pio_word(int fd, uint16_t addr, uint16_t val, bool assign)
 106 {
 107     return -ENOSYS;
 108 }
 109
 110 int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, uint32_t len)
 111 {
 112     return -ENOSYS;
 113 }
 114
 115 int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr)
 116 {
 117     return 1;
 118 }
 119
 120 int kvm_on_sigbus(int code, void *addr)
 121 {
 122     return 1;
 123 }
 124
 125 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 126 {
 127     return -ENOSYS;
 128 }
 129
 130 void kvm_irqchip_release_virq(KVMState *s, int virq)
 131 {
 132 }
 133
 134 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 135 {
 136     return -ENOSYS;
 137 }
 138
 139 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 140 {
 141     return -ENOSYS;
 142 }