diff --git a/docs/specs/standard-vga.txt b/docs/specs/standard-vga.txt
index 1cecccd..8a4c1e9 100644
--- a/docs/specs/standard-vga.txt
+++ b/docs/specs/standard-vga.txt
@@ -36,7 +36,8 @@
 
 03c0 - 03df : standard vga ports
 01ce        : bochs vbe interface index port
-01cf        : bochs vbe interface data port
+01cf        : bochs vbe interface data port (x86 only)
+01d0        : bochs vbe interface data port
 
 
 Memory regions used
diff --git a/hw/vga-pci.c b/hw/vga-pci.c
index ec29cac..947e35c 100644
--- a/hw/vga-pci.c
+++ b/hw/vga-pci.c
@@ -84,9 +84,10 @@
                                  uint64_t val, unsigned size)
 {
     PCIVGAState *d = ptr;
+
     switch (size) {
     case 1:
-        vga_ioport_write(&d->vga, addr, val);
+        vga_ioport_write(&d->vga, addr + 0x3c0, val);
         break;
     case 2:
         /*
@@ -94,8 +95,8 @@
          * indexed registers with a single word write because the
          * index byte is updated first.
          */
-        vga_ioport_write(&d->vga, addr, val & 0xff);
-        vga_ioport_write(&d->vga, addr+1, (val >> 8) & 0xff);
+        vga_ioport_write(&d->vga, addr + 0x3c0, val & 0xff);
+        vga_ioport_write(&d->vga, addr + 0x3c1, (val >> 8) & 0xff);
         break;
     }
 }
diff --git a/hw/vga.c b/hw/vga.c
index 81aa76b..2b0200a 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -2321,9 +2321,8 @@
     { 0, 1, 2, .read = vbe_ioport_read_index, .write = vbe_ioport_write_index },
 # ifdef TARGET_I386
     { 1, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data },
-# else
-    { 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data },
 # endif
+    { 2, 1, 2, .read = vbe_ioport_read_data, .write = vbe_ioport_write_data },
     PORTIO_END_OF_LIST(),
 };