From: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Add a test device which supports the kvmctl ioports, for running the test
suite.
Usage:
qemu
-chardev file,path=/log/file/some/where,id=testlog
-device testdev,chardev=testlog
Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
Makefile.target | 1 +
hw/testdev.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 56 insertions(+), 0 deletions(-)
create mode 100644 hw/testdev.c
diff --git a/Makefile.target b/Makefile.target
index c8c9568..a08e432 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -216,6 +216,7 @@ obj-i386-y += device-hotplug.o pci-hotplug.o smbios.o wdt_ib700.o
obj-i386-y += extboot.o
obj-i386-y += piix4.o
obj-i386-y += ne2000-isa.o
+obj-i386-y += testdev.o
ifeq ($(USE_KVM_PIT), 1)
obj-i386-y += i8254-kvm.o
endif
diff --git a/hw/testdev.c b/hw/testdev.c
new file mode 100644
index 0000000..199731e
--- /dev/null
+++ b/hw/testdev.c
@@ -0,0 +1,55 @@
+#include "hw.h"
+#include "qdev.h"
+#include "isa.h"
+
+struct testdev {
+ ISADevice dev;
+ CharDriverState *chr;
+};
+
+static void test_device_serial_write(void *opaque, uint32_t addr, uint32_t data)
+{
+ struct testdev *dev = opaque;
+ uint8_t buf[1] = { data };
+
+ if (dev->chr) {
+ qemu_chr_write(dev->chr, buf, 1);
+ }
+}
+
+static void test_device_exit(void *opaque, uint32_t addr, uint32_t data)
+{
+ exit(data);
+}
+
+static uint32_t test_device_memsize_read(void *opaque, uint32_t addr)
+{
+ return ram_size;
+}
+
+static int init_test_device(ISADevice *isa)
+{
+ struct testdev *dev = DO_UPCAST(struct testdev, dev, isa);
+
+ register_ioport_write(0xf1, 1, 1, test_device_serial_write, dev);
+ register_ioport_write(0xf4, 1, 4, test_device_exit, dev);
+ register_ioport_read(0xd1, 1, 4, test_device_memsize_read, dev);
+ return 0;
+}
+
+static ISADeviceInfo testdev_info = {
+ .qdev.name = "testdev",
+ .qdev.size = sizeof(struct testdev),
+ .init = init_test_device,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_CHR("chardev", struct testdev, chr),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+};
+
+static void testdev_register_devices(void)
+{
+ isa_qdev_register(&testdev_info);
+}
+
+device_init(testdev_register_devices)
--
1.6.4.1
--
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