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