Patchwork [PULL,20/28] pci: fix pci bridge fw path

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Submitter Michael S. Tsirkin
Date Dec. 11, 2013, 6:31 p.m.
Message ID <1386786509-29966-20-git-send-email-mst@redhat.com>
Download mbox | patch
Permalink /patch/300282/
State New
Headers show

Comments

Michael S. Tsirkin - Dec. 11, 2013, 6:31 p.m.
From: Gerd Hoffmann <kraxel@redhat.com>

qemu uses "pci" as name for pci bridges in the firmware device path.
seabios expects "pci-bridge".  Result is that bootorder is broken for
devices behind pci bridges.

Some googling suggests that "pci-bridge" is the correct one.  At least
PPC-based Apple machines are using this.  See question "How do I boot
from a device attached to a PCI card" here:
	http://www.netbsd.org/ports/macppc/faq.html

So lets change qemu to use "pci-bridge" too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/pci/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 49eca95..82c11ec 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1330,7 +1330,7 @@  static const pci_class_desc pci_class_descriptions[] =
     { 0x0601, "ISA bridge", "isa"},
     { 0x0602, "EISA bridge", "eisa"},
     { 0x0603, "MC bridge", "mca"},
-    { 0x0604, "PCI bridge", "pci"},
+    { 0x0604, "PCI bridge", "pci-bridge"},
     { 0x0605, "PCMCIA bridge", "pcmcia"},
     { 0x0606, "NUBUS bridge", "nubus"},
     { 0x0607, "CARDBUS bridge", "cardbus"},