On 12/13/2010 06:45 AM, Yoder Stuart-B08248 wrote:
Avi/Hollis, Exchanged some emails with Alex on the topic of rewriting on powerpc KVM-- the current approach taken by Alex's PV patch is to have a guest Linux paravirt itself, by re-writing certain instructions. The downside to this approach (guest side patching) is that every OS to be run on KVM has to be modified or dynamically patched. What were the reasons for not going down the path of doing the re-writing in the hypervisor? (Alex couldn't remember the specifics). What about doing it from Qemu?
Rewriting is dangerous if the guest is unaware of it. As soon as it is made aware of it, it might as well actually do it in the best way that suits it.
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