On 12.01.2010, at 20:45, Blue Swirl wrote:
On Tue, Jan 12, 2010 at 11:58 AM, Alexander Graf agraf@suse.de wrote:
I'm trying to get the PPC64 system emulation target working finally. While doing so, I ran into several issues, all related to PCI this time.
This patchset fixes all the PCI config space access and PCI interrupt mapping issues I've found on PPC64. Using this and a patched OpenBIOS version, I can successfully access IDE devices and was booting a guest into the shell from IDE using serial console.
To leverage this patch, you also need a few patches to OpenBIOS. I'll present them to the OpenBIOS list, but in general getting patches into Qemu is harder than getting them into OpenBIOS. So I want to wait for the review process here first.
Find the OpenBIOS patch at: http://alex.csgraf.de/openbios-ppc-u3.patch
About the OpenBIOS patch, could you move the PCI_INT_MAP defines to a PPC-specific header and make pci_host_set_interrupt_map() contents surrounded by #ifdef CONFIG_PPC (to make it empty function for other arches)?
Well, other archs should be able to use the same code. If OpenBIOS knows how interrupts work for a particular device, it really should tell the OS about it too IMHO.
Alex