4f67d30b5e
The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/* "Unimplemented" device
|
|
*
|
|
* This is a dummy device which accepts and logs all accesses.
|
|
* It's useful for stubbing out regions of an SoC or board
|
|
* map which correspond to devices that have not yet been
|
|
* implemented. This is often sufficient to placate initial
|
|
* guest device driver probing such that the system will
|
|
* come up.
|
|
*
|
|
* Copyright Linaro Limited, 2017
|
|
* Written by Peter Maydell
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "hw/sysbus.h"
|
|
#include "hw/misc/unimp.h"
|
|
#include "qemu/log.h"
|
|
#include "qemu/module.h"
|
|
#include "qapi/error.h"
|
|
|
|
static uint64_t unimp_read(void *opaque, hwaddr offset, unsigned size)
|
|
{
|
|
UnimplementedDeviceState *s = UNIMPLEMENTED_DEVICE(opaque);
|
|
|
|
qemu_log_mask(LOG_UNIMP, "%s: unimplemented device read "
|
|
"(size %d, offset 0x%" HWADDR_PRIx ")\n",
|
|
s->name, size, offset);
|
|
return 0;
|
|
}
|
|
|
|
static void unimp_write(void *opaque, hwaddr offset,
|
|
uint64_t value, unsigned size)
|
|
{
|
|
UnimplementedDeviceState *s = UNIMPLEMENTED_DEVICE(opaque);
|
|
|
|
qemu_log_mask(LOG_UNIMP, "%s: unimplemented device write "
|
|
"(size %d, value 0x%" PRIx64
|
|
", offset 0x%" HWADDR_PRIx ")\n",
|
|
s->name, size, value, offset);
|
|
}
|
|
|
|
static const MemoryRegionOps unimp_ops = {
|
|
.read = unimp_read,
|
|
.write = unimp_write,
|
|
.impl.min_access_size = 1,
|
|
.impl.max_access_size = 8,
|
|
.valid.min_access_size = 1,
|
|
.valid.max_access_size = 8,
|
|
.endianness = DEVICE_NATIVE_ENDIAN,
|
|
};
|
|
|
|
static void unimp_realize(DeviceState *dev, Error **errp)
|
|
{
|
|
UnimplementedDeviceState *s = UNIMPLEMENTED_DEVICE(dev);
|
|
|
|
if (s->size == 0) {
|
|
error_setg(errp, "property 'size' not specified or zero");
|
|
return;
|
|
}
|
|
|
|
if (s->name == NULL) {
|
|
error_setg(errp, "property 'name' not specified");
|
|
return;
|
|
}
|
|
|
|
memory_region_init_io(&s->iomem, OBJECT(s), &unimp_ops, s,
|
|
s->name, s->size);
|
|
sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
|
|
}
|
|
|
|
static Property unimp_properties[] = {
|
|
DEFINE_PROP_UINT64("size", UnimplementedDeviceState, size, 0),
|
|
DEFINE_PROP_STRING("name", UnimplementedDeviceState, name),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void unimp_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
dc->realize = unimp_realize;
|
|
device_class_set_props(dc, unimp_properties);
|
|
}
|
|
|
|
static const TypeInfo unimp_info = {
|
|
.name = TYPE_UNIMPLEMENTED_DEVICE,
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(UnimplementedDeviceState),
|
|
.class_init = unimp_class_init,
|
|
};
|
|
|
|
static void unimp_register_types(void)
|
|
{
|
|
type_register_static(&unimp_info);
|
|
}
|
|
|
|
type_init(unimp_register_types)
|