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/msi.h"
  16 #include "cpu.h"
  17 #include "gdbstub.h"
  18 #include "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_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
  33 {
  34     return -ENOSYS;
  35 }
  36
  37 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
  38 {
  39     return -ENOSYS;
  40 }
  41
  42 int kvm_init(void)
  43 {
  44     return -ENOSYS;
  45 }
  46
  47 void kvm_flush_coalesced_mmio_buffer(void)
  48 {
  49 }
  50
  51 void kvm_cpu_synchronize_state(CPUArchState *env)
  52 {
  53 }
  54
  55 void kvm_cpu_synchronize_post_reset(CPUArchState *env)
  56 {
  57 }
  58
  59 void kvm_cpu_synchronize_post_init(CPUArchState *env)
  60 {
  61 }
  62
  63 int kvm_cpu_exec(CPUArchState *env)
  64 {
  65     abort ();
  66 }
  67
  68 int kvm_has_sync_mmu(void)
  69 {
  70     return 0;
  71 }
  72
  73 int kvm_has_many_ioeventfds(void)
  74 {
  75     return 0;
  76 }
  77
  78 int kvm_has_pit_state2(void)
  79 {
  80     return 0;
  81 }
  82
  83 void kvm_setup_guest_memory(void *start, size_t size)
  84 {
  85 }
  86
  87 int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap)
  88 {
  89     return -ENOSYS;
  90 }
  91
  92 int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr,
  93                           target_ulong len, int type)
  94 {
  95     return -EINVAL;
  96 }
  97
  98 int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr,
  99                           target_ulong len, int type)
 100 {
 101     return -EINVAL;
 102 }
 103
 104 void kvm_remove_all_breakpoints(CPUArchState *current_env)
 105 {
 106 }
 107
 108 #ifndef _WIN32
 109 int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset)
 110 {
 111     abort();
 112 }
 113 #endif
 114
 115 int kvm_set_ioeventfd_pio_word(int fd, uint16_t addr, uint16_t val, bool assign)
 116 {
 117     return -ENOSYS;
 118 }
 119
 120 int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, uint32_t len)
 121 {
 122     return -ENOSYS;
 123 }
 124
 125 int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr)
 126 {
 127     return 1;
 128 }
 129
 130 int kvm_on_sigbus(int code, void *addr)
 131 {
 132     return 1;
 133 }
 134
 135 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 136 {
 137     return -ENOSYS;
 138 }
 139
 140 void kvm_irqchip_release_virq(KVMState *s, int virq)
 141 {
 142 }
 143
 144 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 145 {
 146     return -ENOSYS;
 147 }
 148
 149 int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 150 {
 151     return -ENOSYS;
 152 }