[PATCH] pci: re-add isa bridge setup

[Gerd Hoffmann]

The switch to the two-pass pci initialization dropped the isa bridge
initialization by accident.  That broke interrupts on FreeBSD 4.4 and
maybe also other older guests which don't use ACPI for IRQ routing
setup.  Add the bits back in.

Cc: Bjørn Mork <bjorn(a)mork.no>
Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com>
---
 src/pciinit.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/pciinit.c b/src/pciinit.c
index 6331fdf..597c8ea 100644
--- a/src/pciinit.c
+++ b/src/pciinit.c
@@ -607,6 +607,11 @@ pci_setup(void)
 
     pci_bios_init_device_in_bus(0 /* host bus */);
 
+    struct pci_device *pci;
+    foreachpci(pci) {
+        pci_init_device(pci_isa_bridge_tbl, pci, NULL);
+    }
+
     free(busses);
     busses_count = 0;
 }
-- 
1.7.1

[Bjørn Mork]

Gerd Hoffmann <kraxel(a)redhat.com> writes:

  The switch to the two-pass pci initialization dropped
the isa bridge
 initialization by accident.  That broke interrupts on FreeBSD 4.4 and
 maybe also other older guests which don't use ACPI for IRQ routing
 setup.  Add the bits back in.

 Cc: Bjørn Mork <bjorn(a)mork.no>
 Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com>
Thanks for the quick analysis and fix.  Tested and verified that this
patch fixes the problem for me, as expected. Feel free to add 

Tested-by: Bjørn Mork <bjorn(a)mork.no>

if that matters to anyone.



Bjørn

[Kevin O'Connor]

On Tue, Aug 09, 2011 at 05:22:42PM +0200, Gerd Hoffmann wrote:
  The switch to the two-pass pci initialization dropped
the isa bridge
 initialization by accident.  That broke interrupts on FreeBSD 4.4 and
 maybe also other older guests which don't use ACPI for IRQ routing
 setup.  Add the bits back in.
Thanks.  I applied this.

-Kevin