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a7bc4ee528
Move the definition of the struct for the unimplemented-device from unimp.c to unimp.h, so that users can embed the struct in their own device structs if they prefer. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180220180325.29818-10-peter.maydell@linaro.org
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* "Unimplemented" device
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*
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* Copyright Linaro Limited, 2017
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* Written by Peter Maydell
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*/
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#ifndef HW_MISC_UNIMP_H
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#define HW_MISC_UNIMP_H
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#include "hw/sysbus.h"
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#define TYPE_UNIMPLEMENTED_DEVICE "unimplemented-device"
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#define UNIMPLEMENTED_DEVICE(obj) \
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OBJECT_CHECK(UnimplementedDeviceState, (obj), TYPE_UNIMPLEMENTED_DEVICE)
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typedef struct {
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SysBusDevice parent_obj;
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MemoryRegion iomem;
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char *name;
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uint64_t size;
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} UnimplementedDeviceState;
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/**
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* create_unimplemented_device: create and map a dummy device
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* @name: name of the device for debug logging
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* @base: base address of the device's MMIO region
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* @size: size of the device's MMIO region
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*
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* This utility function creates and maps an instance of unimplemented-device,
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* which is a dummy device which simply logs all guest accesses to
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* it via the qemu_log LOG_UNIMP debug log.
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* The device is mapped at priority -1000, which means that you can
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* use it to cover a large region and then map other devices on top of it
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* if necessary.
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*/
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static inline void create_unimplemented_device(const char *name,
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hwaddr base,
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hwaddr size)
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{
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DeviceState *dev = qdev_create(NULL, TYPE_UNIMPLEMENTED_DEVICE);
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qdev_prop_set_string(dev, "name", name);
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qdev_prop_set_uint64(dev, "size", size);
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qdev_init_nofail(dev);
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sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, base, -1000);
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}
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#endif
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