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
  26 int kvm_init_vcpu(CPUArchState *env)
  27 {
  28     return -ENOSYS;
  29 }
  30
  31 int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
  32 {
  33     return -ENOSYS;
  34 }
  35
  36 int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
  37 {
  38     return -ENOSYS;
  39 }
  40
  41 int kvm_init(void)
  42 {
  43     return -ENOSYS;
  44 }
  45
  46 void kvm_flush_coalesced_mmio_buffer(void)
  47 {
  48 }
  49
  50 void kvm_cpu_synchronize_state(CPUArchState *env)
  51 {
  52 }
  53
  54 void kvm_cpu_synchronize_post_reset(CPUArchState *env)
  55 {
  56 }
  57
  58 void kvm_cpu_synchronize_post_init(CPUArchState *env)
  59 {
  60 }
  61
  62 int kvm_cpu_exec(CPUArchState *env)
  63 {
  64     abort ();
  65 }
  66
  67 int kvm_has_sync_mmu(void)
  68 {
  69     return 0;
  70 }
  71
  72 int kvm_has_many_ioeventfds(void)
  73 {
  74     return 0;
  75 }
  76
  77 int kvm_has_pit_state2(void)
  78 {
  79     return 0;
  80 }
  81
  82 void kvm_setup_guest_memory(void *start, size_t size)
  83 {
  84 }
  85
  86 int kvm_update_guest_debug(CPUArchState *env, unsigned long reinject_trap)
  87 {
  88     return -ENOSYS;
  89 }
  90
  91 int kvm_insert_breakpoint(CPUArchState *current_env, target_ulong addr,
  92                           target_ulong len, int type)
  93 {
  94     return -EINVAL;
  95 }
  96
  97 int kvm_remove_breakpoint(CPUArchState *current_env, target_ulong addr,
  98                           target_ulong len, int type)
  99 {
 100     return -EINVAL;
 101 }
 102
 103 void kvm_remove_all_breakpoints(CPUArchState *current_env)
 104 {
 105 }
 106
 107 #ifndef _WIN32
 108 int kvm_set_signal_mask(CPUArchState *env, const sigset_t *sigset)
 109 {
 110     abort();
 111 }
 112 #endif
 113
 114 int kvm_set_ioeventfd_pio_word(int fd, uint16_t addr, uint16_t val, bool assign)
 115 {
 116     return -ENOSYS;
 117 }
 118
 119 int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, uint32_t len)
 120 {
 121     return -ENOSYS;
 122 }
 123
 124 int kvm_on_sigbus_vcpu(CPUArchState *env, int code, void *addr)
 125 {
 126     return 1;
 127 }
 128
 129 int kvm_on_sigbus(int code, void *addr)
 130 {
 131     return 1;
 132 }
 133
 134 int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
 135 {
 136     return -ENOSYS;
 137 }
 138
 139 void kvm_irqchip_release_virq(KVMState *s, int virq)
 140 {
 141 }
 142
 143 int kvm_irqchip_add_irqfd(KVMState *s, int fd, int virq)
 144 {
 145     return -ENOSYS;
 146 }
 147
 148 int kvm_irqchip_add_irq_notifier(KVMState *s, EventNotifier *n, int virq)
 149 {
 150     return -ENOSYS;
 151 }
 152
 153 int kvm_irqchip_remove_irqfd(KVMState *s, int fd, int virq)
 154 {
 155     return -ENOSYS;
 156 }
 157
 158 int kvm_irqchip_remove_irq_notifier(KVMState *s, EventNotifier *n, int virq)
 159 {
 160     return -ENOSYS;
 161 }