cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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pvpanic.h (1268B)

      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 */
     36typedef struct PVPanicState PVPanicState;
     37struct PVPanicState {
     38    MemoryRegion mr;
     39    uint8_t events;
     40};
     41
     42void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size);
     43
     44static 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