ppc/pnv: Add a HIOMAP erase command
[qemu.git] / 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
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