Ronald G. Minnich b520f3201e Some serious changes to get qemu working with pci. ... Also added comments. A big change is in the dts. In OFW trees, the hierarchy seems to be: /root/cpu/northbridge south other pci note that the north is in the hierarchy under the south. This hierarchy makes no sense on systems with a shared frontside bus, or at least I don't see how it can. In those systems, it's easier to think about the CPUs AND northbridges as children of the front side bus. in LinuxBIOS, it has always been this: /root/cpu/whatever /root/northbridge/ south other pci There have been many discussions over how it ought to be, for 8 years now, and we've always come back to how LB does it. So I have changed the dts for qemu for now to match LB's way of doing things. Note that the new system is flexible enough that, on K8, we CAN do things as above: /cpu@0/amd8knorthbridge/etc. /cpu@1/amd8knorthbridge/etc. But on qemu, for now, the root is the mainboard, and the CPU and northbridge are siblings. I've added some informational printks, cleaned up pci_ops, and done other things so that it builds and all seems to work -- until it hangs hard in enumeration in i440bx ... Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@160 f3766cd6-281f-0410-b1cd-43a5c92072e9		2007-02-28 19:17:59 +00:00
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x86	Some serious changes to get qemu working with pci.	2007-02-28 19:17:59 +00:00