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
18#define VMCOREINFO_DEVICE "vmcoreinfo"
19#define VMCOREINFO(obj) OBJECT_CHECK(VMCoreInfoState, (obj), VMCOREINFO_DEVICE)
20
21typedef struct fw_cfg_vmcoreinfo FWCfgVMCoreInfo;
22
23typedef struct VMCoreInfoState {
24 DeviceClass parent_obj;
25
26 bool has_vmcoreinfo;
27 FWCfgVMCoreInfo vmcoreinfo;
28} VMCoreInfoState;
29
30/* returns NULL unless there is exactly one device */
31static inline VMCoreInfoState *vmcoreinfo_find(void)
32{
33 Object *o = object_resolve_path_type("", VMCOREINFO_DEVICE, NULL);
34
35 return o ? VMCOREINFO(o) : NULL;
36}
37
38#endif
39