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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unimp.h (1586B)

      1/*
      2 * "Unimplemented" device
      3 *
      4 * Copyright Linaro Limited, 2017
      5 * Written by Peter Maydell
      6 */
      7
      8#ifndef HW_MISC_UNIMP_H
      9#define HW_MISC_UNIMP_H
     10
     11#include "hw/qdev-properties.h"
     12#include "hw/sysbus.h"
     13#include "qapi/error.h"
     14#include "qom/object.h"
     15
     16#define TYPE_UNIMPLEMENTED_DEVICE "unimplemented-device"
     17
     18OBJECT_DECLARE_SIMPLE_TYPE(UnimplementedDeviceState, UNIMPLEMENTED_DEVICE)
     19
     20struct UnimplementedDeviceState {
     21    SysBusDevice parent_obj;
     22    MemoryRegion iomem;
     23    unsigned offset_fmt_width;
     24    char *name;
     25    uint64_t size;
     26};
     27
     28/**
     29 * create_unimplemented_device: create and map a dummy device
     30 * @name: name of the device for debug logging
     31 * @base: base address of the device's MMIO region
     32 * @size: size of the device's MMIO region
     33 *
     34 * This utility function creates and maps an instance of unimplemented-device,
     35 * which is a dummy device which simply logs all guest accesses to
     36 * it via the qemu_log LOG_UNIMP debug log.
     37 * The device is mapped at priority -1000, which means that you can
     38 * use it to cover a large region and then map other devices on top of it
     39 * if necessary.
     40 */
     41static inline void create_unimplemented_device(const char *name,
     42                                               hwaddr base,
     43                                               hwaddr size)
     44{
     45    DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
     46
     47    qdev_prop_set_string(dev, "name", name);
     48    qdev_prop_set_uint64(dev, "size", size);
     49    sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     50
     51    sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, base, -1000);
     52}
     53
     54#endif