aboutsummaryrefslogtreecommitdiff
path: root/hw/misc
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2013-07-22 15:54:38 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2013-07-25 08:12:28 -0500
commitd2f5ea9704af781d4cf14e4be08bb4e37a180260 (patch)
tree3c6427fcb5499ea80695ecbef8a54dab32602ea6 /hw/misc
parente7342aa39b3193473ded24cbf2233930665796e9 (diff)
downloadqemu-d2f5ea9704af781d4cf14e4be08bb4e37a180260.zip
qemu-d2f5ea9704af781d4cf14e4be08bb4e37a180260.tar.gz
qemu-d2f5ea9704af781d4cf14e4be08bb4e37a180260.tar.bz2
pc-testdev: add I/O port to test memory.c auto split/combine
The ports at 0xe8..0xeb have impl.min/max_access_size == 1, so that memory accesses are split and combined by the memory core. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1374501278-31549-29-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/misc')
-rw-r--r--hw/misc/pc-testdev.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/hw/misc/pc-testdev.c b/hw/misc/pc-testdev.c
index ad1aa66..5867c70 100644
--- a/hw/misc/pc-testdev.c
+++ b/hw/misc/pc-testdev.c
@@ -49,6 +49,7 @@ typedef struct PCTestdev {
ISADevice parent_obj;
MemoryRegion ioport;
+ MemoryRegion ioport_byte;
MemoryRegion flush;
MemoryRegion irq;
MemoryRegion iomem;
@@ -102,6 +103,16 @@ static const MemoryRegionOps test_ioport_ops = {
.endianness = DEVICE_LITTLE_ENDIAN,
};
+static const MemoryRegionOps test_ioport_byte_ops = {
+ .read = test_ioport_read,
+ .write = test_ioport_write,
+ .valid.min_access_size = 1,
+ .valid.max_access_size = 4,
+ .impl.min_access_size = 1,
+ .impl.max_access_size = 1,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
static void test_flush_page(void *opaque, hwaddr addr, uint64_t data,
unsigned len)
{
@@ -156,6 +167,9 @@ static void testdev_realizefn(DeviceState *d, Error **errp)
memory_region_init_io(&dev->ioport, OBJECT(dev), &test_ioport_ops, dev,
"pc-testdev-ioport", 4);
+ memory_region_init_io(&dev->ioport_byte, OBJECT(dev),
+ &test_ioport_byte_ops, dev,
+ "pc-testdev-ioport-byte", 4);
memory_region_init_io(&dev->flush, OBJECT(dev), &test_flush_ops, dev,
"pc-testdev-flush-page", 4);
memory_region_init_io(&dev->irq, OBJECT(dev), &test_irq_ops, dev,
@@ -165,6 +179,7 @@ static void testdev_realizefn(DeviceState *d, Error **errp)
memory_region_add_subregion(io, 0xe0, &dev->ioport);
memory_region_add_subregion(io, 0xe4, &dev->flush);
+ memory_region_add_subregion(io, 0xe8, &dev->ioport_byte);
memory_region_add_subregion(io, 0x2000, &dev->irq);
memory_region_add_subregion(mem, 0xff000000, &dev->iomem);
}