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-rw-r--r--hw/misc/sifive_test.c100
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diff --git a/hw/misc/sifive_test.c b/hw/misc/sifive_test.c
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+/*
+ * QEMU SiFive Test Finisher
+ *
+ * Copyright (c) 2018 SiFive, Inc.
+ *
+ * Test finisher memory mapped device used to exit simulation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sysbus.h"
+#include "qapi/error.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "sysemu/runstate.h"
+#include "hw/hw.h"
+#include "hw/misc/sifive_test.h"
+
+static uint64_t sifive_test_read(void *opaque, hwaddr addr, unsigned int size)
+{
+ return 0;
+}
+
+static void sifive_test_write(void *opaque, hwaddr addr,
+ uint64_t val64, unsigned int size)
+{
+ if (addr == 0) {
+ int status = val64 & 0xffff;
+ int code = (val64 >> 16) & 0xffff;
+ switch (status) {
+ case FINISHER_FAIL:
+ exit(code);
+ case FINISHER_PASS:
+ exit(0);
+ case FINISHER_RESET:
+ qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
+ return;
+ default:
+ break;
+ }
+ }
+ qemu_log_mask(LOG_GUEST_ERROR, "%s: write: addr=0x%x val=0x%016" PRIx64 "\n",
+ __func__, (int)addr, val64);
+}
+
+static const MemoryRegionOps sifive_test_ops = {
+ .read = sifive_test_read,
+ .write = sifive_test_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 2,
+ .max_access_size = 4
+ }
+};
+
+static void sifive_test_init(Object *obj)
+{
+ SiFiveTestState *s = SIFIVE_TEST(obj);
+
+ memory_region_init_io(&s->mmio, obj, &sifive_test_ops, s,
+ TYPE_SIFIVE_TEST, 0x1000);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
+}
+
+static const TypeInfo sifive_test_info = {
+ .name = TYPE_SIFIVE_TEST,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(SiFiveTestState),
+ .instance_init = sifive_test_init,
+};
+
+static void sifive_test_register_types(void)
+{
+ type_register_static(&sifive_test_info);
+}
+
+type_init(sifive_test_register_types)
+
+
+/*
+ * Create Test device.
+ */
+DeviceState *sifive_test_create(hwaddr addr)
+{
+ DeviceState *dev = qdev_new(TYPE_SIFIVE_TEST);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
+ return dev;
+}