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Support PCI based option rom loading

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Currently, we preload option roms into the option rom space in memory.  This
prevents DDIM from functioning correctly which severely limits the number
of roms we can support.

This patch introduces a pci_add_option_rom() which registers the
PCI_ROM_ADDRESS bar which points to our option rom.  It also converts over
the cirrus vga adapter, the rtl8139, virtio, and the e1000 to use this
new mechanism.

The result is that PXE boot functions even with three unique types of cards.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2009-12-18 12:01:07 +01:00
parent ec7efac4a9
commit c2039bd0ff
6 changed files with 44 additions and 4 deletions
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2
hw/virtio-pci.c
View file

@ -522,7 +522,7 @@ static int virtio_net_init_pci(PCIDevice *pci_dev)
if (!pci_dev->qdev.hotplugged) {
static int loaded = 0;
if (!loaded) {
rom_add_option("pxe-virtio.bin");
pci_add_option_rom(pci_dev, "pxe-virtio.bin");
loaded = 1;
}
}