LXR qemu/include/hw/misc/vmcoreinfo.h

   1/*
   2 * Virtual Machine coreinfo device
   3 *
   4 * Copyright (C) 2017 Red Hat, Inc.
   5 *
   6 * Authors: Marc-André Lureau <marcandre.lureau@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#ifndef VMCOREINFO_H
  13#define VMCOREINFO_H
  14
  15#include "hw/qdev-core.h"
  16#include "standard-headers/linux/qemu_fw_cfg.h"
  17#include "qom/object.h"
  18
  19#define TYPE_VMCOREINFO "vmcoreinfo"
  20typedef struct VMCoreInfoState VMCoreInfoState;
  21DECLARE_INSTANCE_CHECKER(VMCoreInfoState, VMCOREINFO, TYPE_VMCOREINFO)
  22
  23typedef struct fw_cfg_vmcoreinfo FWCfgVMCoreInfo;
  24
  25struct VMCoreInfoState {
  26    DeviceState parent_obj;
  27
  28    bool has_vmcoreinfo;
  29    FWCfgVMCoreInfo vmcoreinfo;
  30};
  31
  32/* returns NULL unless there is exactly one device */
  33static inline VMCoreInfoState *vmcoreinfo_find(void)
  34{
  35    Object *o = object_resolve_path_type("", TYPE_VMCOREINFO, NULL);
  36
  37    return o ? VMCOREINFO(o) : NULL;
  38}
  39
  40#endif
  41