On Tue, 2007-10-16 at 10:20 +0200, Claes Lilliesköld wrote: > Hello, > I'm looking for a way to run Linux on top on an RTOS on a PowerPC 750 > based system. > > To achieve this, at least the following need to be done: > 1. Port the hypervisor interface to the RTOS. > 2. Adapt the XEN Linux to be able to run on PowerPC 750. > > The current PowerPC support is only for PowerPC 970 from what I > understand.
Correct. Also note that Xen's PowerPC support depends on the hardware virtualization extensions found in server architecture PowerPC such as 970. The 750 lacks these features. > I'd be grateful if you could comment on if this is possible, and how > it should be done. I don't know of anybody doing an open source hypervisor for 750. I think there are a few commercial solutions if you want to deploy something today. However, there are a few people looking at KVM on embedded PowerPC, so I'm CCing kvm-ppc-devel. So far we've been thinking mostly about Book E (440 and e500), but if you're interested in developing support for 750 that would be a good place to discuss. Currently we have an unmodified 440 Linux kernel booting as a guest, but userspace doesn't work yet. I think KVM makes more sense for embedded PowerPC because we can reuse Linux's existing support for the huge variety of cores/chips/boards. By the way, what RTOS are you using, and what sort of real-time and MMU requirements do you have? -- Hollis Blanchard IBM Linux Technology Center _______________________________________________ Xen-ppc-devel mailing list Xenemail@example.com http://lists.xensource.com/xen-ppc-devel