commit f67ab77a43cbaca27a39c69223ec6d5dc850f22d
author Gerd Hoffmann <kraxel@redhat.com> Thu Nov 03 18:21:54 2011 +0100
committer Anthony Liguori <aliguori@us.ibm.com> Mon Nov 07 10:57:37 2011 -0600
tree 5ebd50fb43e441d0140e76a0eac084c42d771857
parent 25a21c94c0055e078acb7f7455e66c8a15f32385

qxl: fix vga port initialization.

Commit 0a039dc70096b768d3810afa50ba1d214768aaf4 broke vga modes for
qxl-vga by loosing vga_ioport_read windup.  qxl needs to hook into
vga port writes only and used to realize that by letting vga_init() do
the work for both reads and writes, then overwrite the write function.
That little detail was missed while doing the conversion ...

This patch fixes it.  It also switch qxl vga ioport registration to
portio lists while being at it.

Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

hw/qxl.c

diff --git a/hw/qxl.c b/hw/qxl.c
index 84ffd45..41500e9 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -896,6 +896,20 @@
     vga_ioport_write(opaque, addr, val);
 }
 
+static const MemoryRegionPortio qxl_vga_portio_list[] = {
+    { 0x04,  2, 1, .read  = vga_ioport_read,
+                   .write = qxl_vga_ioport_write }, /* 3b4 */
+    { 0x0a,  1, 1, .read  = vga_ioport_read,
+                   .write = qxl_vga_ioport_write }, /* 3ba */
+    { 0x10, 16, 1, .read  = vga_ioport_read,
+                   .write = qxl_vga_ioport_write }, /* 3c0 */
+    { 0x24,  2, 1, .read  = vga_ioport_read,
+                   .write = qxl_vga_ioport_write }, /* 3d4 */
+    { 0x2a,  1, 1, .read  = vga_ioport_read,
+                   .write = qxl_vga_ioport_write }, /* 3da */
+    PORTIO_END_OF_LIST(),
+};
+
 static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
                             qxl_async_io async)
 {
@@ -1595,6 +1609,7 @@
     PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
     VGACommonState *vga = &qxl->vga;
     ram_addr_t ram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
+    PortioList *qxl_vga_port_list = g_new(PortioList, 1);
 
     qxl->id = 0;
 
@@ -1603,11 +1618,8 @@
     }
     vga_common_init(vga, ram_size);
     vga_init(vga, pci_address_space(dev), pci_address_space_io(dev), false);
-    register_ioport_write(0x3c0, 16, 1, qxl_vga_ioport_write, vga);
-    register_ioport_write(0x3b4,  2, 1, qxl_vga_ioport_write, vga);
-    register_ioport_write(0x3d4,  2, 1, qxl_vga_ioport_write, vga);
-    register_ioport_write(0x3ba,  1, 1, qxl_vga_ioport_write, vga);
-    register_ioport_write(0x3da,  1, 1, qxl_vga_ioport_write, vga);
+    portio_list_init(qxl_vga_port_list, qxl_vga_portio_list, vga, "vga");
+    portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
 
     vga->ds = graphic_console_init(qxl_hw_update, qxl_hw_invalidate,
                                    qxl_hw_screen_dump, qxl_hw_text_update, qxl);