LXR qemu/target/i386/kvm/hyperv-stub.c

   1/*
   2 * Stubs for CONFIG_HYPERV=n
   3 *
   4 * Copyright (c) 2015-2018 Virtuozzo International GmbH.
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#include "qemu/osdep.h"
  11#include "hyperv.h"
  12
  13#ifdef CONFIG_KVM
  14int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
  15{
  16    switch (exit->type) {
  17    case KVM_EXIT_HYPERV_SYNIC:
  18        if (!hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNIC)) {
  19            return -1;
  20        }
  21
  22        /*
  23         * Tracking the changes in the MSRs is unnecessary as there are no
  24         * users for them beside save/load, which is handled nicely by the
  25         * generic MSR save/load code
  26         */
  27        return 0;
  28    case KVM_EXIT_HYPERV_HCALL:
  29        exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
  30        return 0;
  31    default:
  32        return -1;
  33    }
  34}
  35#endif
  36
  37int hyperv_x86_synic_add(X86CPU *cpu)
  38{
  39    return -ENOSYS;
  40}
  41
  42void hyperv_x86_synic_reset(X86CPU *cpu)
  43{
  44}
  45
  46void hyperv_x86_synic_update(X86CPU *cpu)
  47{
  48}
  49