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[Qemu-devel] [PATCH v3 2/4] switch stdvga to pci vgabios


From: Gerd Hoffmann
Subject: [Qemu-devel] [PATCH v3 2/4] switch stdvga to pci vgabios
Date: Wed, 3 Nov 2010 12:56:10 +0100

Make stdvga provide the new vgabios binary (with pcibios support)
using the PCI option rom bar.  Seabios will happily load it from
there.  The new vga bios will also lookup the framebuffer address
in pci config space, so the magic bochs lfb @ 0xe0000000 is not
needed any more -> zap it.

Without the patch:

  # dmesg | grep framebuffer
  vesafb: framebuffer at 0xe0000000, mapped to 0xf7e80000, using 1875k, total 
8192k
  # lspci -vs2
  00:02.0 VGA compatible controller: Technical Corp. Device 1111 (prog-if 00 
[VGA controller])
        Subsystem: Qumranet, Inc. Device 1100
        Physical Slot: 2
        Flags: fast devsel
        Memory at f0000000 (32-bit, prefetchable) [size=8M]
        Expansion ROM at <unassigned> [disabled]

With patch applied:

  # dmesg | grep framebuffer
  vesafb: framebuffer at 0xf0000000, mapped to 0xf7e80000, using 1875k, total 
8192k
  # lspci -vs2
  00:02.0 VGA compatible controller: Technical Corp. Device 1111 (prog-if 00 
[VGA controller])
        Subsystem: Qumranet, Inc. Device 1100
        Physical Slot: 2
        Flags: fast devsel
        Memory at f0000000 (32-bit, prefetchable) [size=8M]
        Expansion ROM at f0800000 [disabled] [size=64K]

cheers,
  Gerd

Signed-off-by: Gerd Hoffmann <address@hidden>
---
 hw/vga-pci.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/hw/vga-pci.c b/hw/vga-pci.c
index 2315f70..eef0e3c 100644
--- a/hw/vga-pci.c
+++ b/hw/vga-pci.c
@@ -103,11 +103,10 @@ static int pci_vga_initfn(PCIDevice *dev)
             bios_total_size <<= 1;
         pci_register_bar(&d->dev, PCI_ROM_SLOT, bios_total_size,
                          PCI_BASE_ADDRESS_MEM_PREFETCH, vga_map);
+     } else {
+         if (dev->romfile == NULL)
+             dev->romfile = qemu_strdup("vgabios-stdvga.bin");
      }
-
-    vga_init_vbe(s);
-     /* ROM BIOS */
-     rom_add_vga(VGABIOS_FILENAME);
      return 0;
 }
 
-- 
1.7.1




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