1 /* 2 * QEMU simulated pvpanic device. 3 * 4 * Copyright Fujitsu, Corp. 2013 5 * 6 * Authors: 7 * Wen Congyang <wency@cn.fujitsu.com> 8 * Hu Tao <hutao@cn.fujitsu.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 * 13 */ 14 15 #ifndef HW_MISC_PVPANIC_H 16 #define HW_MISC_PVPANIC_H 17 18 #include "qom/object.h" 19 20 #define TYPE_PVPANIC_ISA_DEVICE "pvpanic" 21 #define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci" 22 23 #define PVPANIC_IOPORT_PROP "ioport" 24 25 /* The bit of supported pv event, TODO: include uapi header and remove this */ 26 #define PVPANIC_F_PANICKED 0 27 #define PVPANIC_F_CRASHLOADED 1 28 29 /* The pv event value */ 30 #define PVPANIC_PANICKED (1 << PVPANIC_F_PANICKED) 31 #define PVPANIC_CRASHLOADED (1 << PVPANIC_F_CRASHLOADED) 32 33 /* 34 * PVPanicState for any device type 35 */ 36 typedef struct PVPanicState PVPanicState; 37 struct PVPanicState { 38 MemoryRegion mr; 39 uint8_t events; 40 }; 41 42 void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size); 43 44 static inline uint16_t pvpanic_port(void) 45 { 46 Object *o = object_resolve_path_type("", TYPE_PVPANIC_ISA_DEVICE, NULL); 47 if (!o) { 48 return 0; 49 } 50 return object_property_get_uint(o, PVPANIC_IOPORT_PROP, NULL); 51 } 52 53 #endif 54