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 | |
21 | typedef struct fw_cfg_vmcoreinfo FWCfgVMCoreInfo; |
22 | |
23 | typedef 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 */ |
31 | static 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 |