Hi Leif, I have make a multiboot support patch V3.1 following your suggestion for V3.
Because we have not stub-xen for now, so I just keep "grub_arm64_disable_caches_mmu" and the relevant code(misc.c and misc_irq.S ) temporarily. Once the stub support for xen is upstreamed, we can delete those code. Do you agree? :-)
Great thanks!