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582079c9d2
this device is used to verify the correctness of regression tests by allowing guests to write their exit status to this device. This is then used by qemu to exit using the written status. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210305170045.869437-4-kbastian@mail.uni-paderborn.de> Message-Id: <20210512102051.12134-14-alex.bennee@linaro.org>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
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* Copyright (c) 2018-2021 Bastian Koppelmann Paderborn University
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "hw/sysbus.h"
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#include "hw/qdev-properties.h"
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#include "hw/tricore/tricore_testdevice.h"
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static void tricore_testdevice_write(void *opaque, hwaddr offset,
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uint64_t value, unsigned size)
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{
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exit(value);
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}
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static uint64_t tricore_testdevice_read(void *opaque, hwaddr offset,
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unsigned size)
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{
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return 0xdeadbeef;
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}
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static void tricore_testdevice_reset(DeviceState *dev)
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{
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}
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static const MemoryRegionOps tricore_testdevice_ops = {
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.read = tricore_testdevice_read,
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.write = tricore_testdevice_write,
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.valid = {
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.min_access_size = 4,
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.max_access_size = 4,
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},
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static void tricore_testdevice_init(Object *obj)
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{
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TriCoreTestDeviceState *s = TRICORE_TESTDEVICE(obj);
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/* map memory */
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memory_region_init_io(&s->iomem, OBJECT(s), &tricore_testdevice_ops, s,
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"tricore_testdevice", 0x4);
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}
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static Property tricore_testdevice_properties[] = {
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DEFINE_PROP_END_OF_LIST()
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};
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static void tricore_testdevice_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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device_class_set_props(dc, tricore_testdevice_properties);
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dc->reset = tricore_testdevice_reset;
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}
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static const TypeInfo tricore_testdevice_info = {
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.name = TYPE_TRICORE_TESTDEVICE,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(TriCoreTestDeviceState),
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.instance_init = tricore_testdevice_init,
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.class_init = tricore_testdevice_class_init,
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};
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static void tricore_testdevice_register_types(void)
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{
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type_register_static(&tricore_testdevice_info);
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}
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type_init(tricore_testdevice_register_types)
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