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Re:Ways we harden our KVM hypervisor at Google Cloud: Securi... by rrdharan on Wednesday January 25, 2017 @02:23PM (#13484992)
> No doubt it's simpler than QEMU but I wonder if adding tests to QEMU, even if they're only for the specific architectures they're running (most likely x86-64) would have been just as usable.

A little later in the post I believe this is somewhat addressed: > QEMU code lacks unit tests and has many interdependencies that would make unit testing extremely difficult.

Personally based on my previous experience at VMware and passing familiarity with QEMU, I think they made the right call.

(I work at Google, but not on the hypervisor)

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