Changeset 19314 in vbox for trunk

Timestamp:

May 4, 2009 3:25:23 AM (16 years ago)

Author:

vboxsync

Message:

DevPCI.cpp: Temporary EFI hack for fixing VGA detection.

File:

• trunk/src/VBox/Devices/Bus/DevPCI.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Bus/DevPCI.cpp

@@ -933 +933 @@
                 /* VGA: map frame buffer to default Bochs VBE address */
                 pci_set_io_region_addr(pGlobals, uBus, uDevFn, 0, 0xE0000000);
+#ifdef VBOX_WITH_EFI
+                /* The following is necessary for the VGA check in
+                   PciVgaMiniPortDriverBindingSupported to succeed. */
+                /** @todo Seems we're missing some I/O registers or something on the VGA device... Compare real/virt hw with lspci. */
+                pci_config_writew(pGlobals, uBus, uDevFn, PCI_COMMAND,
+                                  pci_config_readw(pGlobals, uBus, uDevFn, PCI_COMMAND)
+                                  | 1 /* Enable I/O space access. */);
+#endif
                 break;
             case 0x0800: