On 03.12.2009, at 00:29, Christoffer Dall wrote: > Hi there. > > Additional help is always welcome. I am actually composing a status report as we speak and will probably make it available soon. Also, I want to send something out to the KVM list and will do so soon as well. Especially since the code base matured somewhat lately. That's good news! > I am still stuck on calibrate_delay() in the init process, but have tracked it down to being caused by QEMU not enabling timers. I have a suspicion that I'm forgetting an endianness conversion somewhere, but anyway hope to figure it out this week. I don't see why you'd need to convert endianness. Isn't your host == guest? What exactly doesn't get triggered? Does the MMIO to enable the timer in qemu arrive (kvm)? Or does the qemu timer not fire off (signals)? > There's also a pending review for keeping cached shadow page tables around from Michael, and he's working on protecting the guest page tables as well. The only thing I know about ARM and MMU is that every revision has a different one :-). So do you have x86 style hierarchical fully fledged page tables or more the powerpc like light version of them? One cool trick we could pull on PowerPC was that we can just look up the guest PTE on a fault and get notified (TLB removal of the page) when the PTE gets changed / removed. > For now, you wouldn't need hardware - we're using the Android emulator for now. I compiled some instructions on how to setup the development environment some time ago, and I believe Michael has a version with a few corrections. I'll make sure it gets posted to http://android.chazy.dk soon and I'll think about what needs to be done otherwise. Later on for sure, there's going to be optimization work and support for newer ISA's (we're targeting ARMv5 for simplicity as of now). Sounds good :) > What would you be interested in doing / feel that you have great powers over? :) Well I've been doing the Desktop/Server PowerPC port, so I guess I know my way around on almost all corners so far ;-). The most lacking part is ARM actually, since I haven't really been doing anything there yet. But I'll gladly look into anything that needs work. Alex -------------- next part -------------- An HTML attachment was scrubbed... URL: https://lists.cs.columbia.edu/pipermail/android-virt/attachments/20091202/0415e09c/attachment-0001.html
