Has it been put up anywhere else for now? I know the Kernel has been put up on Github for now.
The git url that we were using was, git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
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Sign up to join this communityNot sure were it went, but you could use a recent (>3.0) kernel which includes all functionality that's needed to run the kernel as dom0.