Is QEMU running on Haiku x64? I was thinking that a nice demo for Haiku would be to run multiple OSs as guests on Haiku. But I think this would require more than 4 GB of RAM, and so would need Haiku X64.
You do not require Haiku 64 bit for that. Haiku 32 bit utilize above 4 GB memory through PAE.
If you are running a nightly, you should be able to get QEMU in Haikudepot. I’ve run ReactOS, BeOS and a Linux mini-distro (forget exactly which one) in 32-bit haiku - simultaneously. Wouldn’t want to do that on a regular basis, but it can be done.