| 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/core/qdev.h" |
| 16 | #include "standard-headers/linux/qemu_fw_cfg.h" |
| 17 | #include "qom/object.h" |
| 18 | |
| 19 | #define TYPE_VMCOREINFO "vmcoreinfo" |
| 20 | typedef struct VMCoreInfoState VMCoreInfoState; |
| 21 | DECLARE_INSTANCE_CHECKER(VMCoreInfoState, VMCOREINFO, TYPE_VMCOREINFO) |
| 22 | |
| 23 | typedef struct fw_cfg_vmcoreinfo FWCfgVMCoreInfo; |
| 24 | |
| 25 | struct VMCoreInfoState { |
| 26 | DeviceState parent_obj; |
| 27 | |
| 28 | bool has_vmcoreinfo; |
| 29 | FWCfgVMCoreInfo vmcoreinfo; |
| 30 | }; |
| 31 | |
| 32 | /* returns NULL unless there is exactly one device */ |
| 33 | static 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 |