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KVM 15KVM 15Posted Mar 1, 2007 4:31 UTC (Thu) by aliguori (subscriber, #30636)Parent article: KVM 15
<i>As it happens, guest systems can be moved between Intel and AMD processors with no problems at all. Moving a 64-bit guest to a 32-bit host remains impossible; the KVM developers appear uninterested in fixing this particular limitation anytime soon.</i>
KVM migration is being developed in parallel to QEMU migration. It will actually be possible to migration a 64-bit KVM guest to a 32-bit host running qemu-system-x86_64. In fact, it will be possible to migrate a 64-bit x86 KVM guest to qemu-system-x86_64 running on PowerPC (or any platform that QEMU supports).
Of course, you are moving from a virtualized host to an emulated host so performance will suffer. Even if a host is 64-bit capable, if it's running in 32-bit mode, supporting a 64-bit guest is just too much of a pain for virtualization.
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