Re: [Xen-devel] Disabling cirrus-vga

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

billy lau wrote:

> Basically, I have just commented out all calls to pci_cirrus_vga_init,
> isa_cirrus_vga_init, pci_vmsvga_init, pci_vga_init and isa_vga_init in
> hw/pc.c, and also load_image_targphys() for loading vgabios, like what
> you have suggested.



It works well for me, I tested it with a Linux HVM guest using the
serial port.
I used the following patch:

---

diff -r 0ea6bd53cfb6 hw/pc.c
--- a/hw/pc.c   Thu Oct 23 10:26:02 2008 +0100
+++ b/hw/pc.c   Mon Dec 15 12:05:54 2008 +0000
@@ -854,7 +854,7 @@
         goto vga_bios_error;
     vga_bios_offset = qemu_ram_alloc(65536);
 
-    ret = load_image_targphys(buf, vga_bios_offset, vga_bios_size);
+    ret = vga_bios_size;
     if (ret != vga_bios_size) {
     vga_bios_error:
         fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf);
@@ -930,31 +930,6 @@
     register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
 
     register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL);
-
-    if (cirrus_vga_enabled) {
-        if (pci_enabled) {
-            pci_cirrus_vga_init(pci_bus,
-                                ds, phys_ram_base + vga_ram_addr,
-                                vga_ram_addr, vga_ram_size);
-        } else {
-            isa_cirrus_vga_init(ds, phys_ram_base + vga_ram_addr,
-                                vga_ram_addr, vga_ram_size);
-        }
-    } else if (vmsvga_enabled) {
-        if (pci_enabled)
-            pci_vmsvga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
-                            vga_ram_addr, vga_ram_size);
-        else
-            fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
-    } else {
-        if (pci_enabled) {
-            pci_vga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
-                         vga_ram_addr, vga_ram_size, 0, 0);
-        } else {
-            isa_vga_init(ds, phys_ram_base + vga_ram_addr,
-                         vga_ram_addr, vga_ram_size);
-        }
-    }
 
 #ifdef CONFIG_PASSTHROUGH
     /* Pass-through Initialization

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