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