isa: Add isa_register_portio_list()

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/hw/isa-bus.c b/hw/isa-bus.c
index e9c171210d..5d8ff84c02 100644
--- a/hw/isa-bus.c
+++ b/hw/isa-bus.c
@@ -103,6 +103,23 @@ void isa_register_ioport(ISADevice *dev, MemoryRegion *io, uint16_t start)
     }
 }
 
+void isa_register_portio_list(ISADevice *dev, uint16_t start,
+                              const MemoryRegionPortio *pio_start,
+                              void *opaque, const char *name)
+{
+    PortioList *piolist = g_new(PortioList, 1);
+
+    /* START is how we should treat DEV, regardless of the actual
+       contents of the portio array.  This is how the old code
+       actually handled e.g. the FDC device.  */
+    if (dev) {
+        isa_init_ioport(dev, start);
+    }
+
+    portio_list_init(piolist, pio_start, opaque, name);
+    portio_list_add(piolist, isabus->address_space_io, start);
+}
+
 static int isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
 {
     ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);