How do I use kvm's emulated MOVBE with qemu?

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Commit 84cffe499b941 ("kvm: Emulate MOVBE") implies that MOVBE
emulation can be requested with "qemu -cpu ...+movbe..." However, when
I try invoking qemu with "-cpu host,+movbe,+vmx", I get:

qemu-system-x86_64: warning: host doesn't support requested feature:
CPUID.01H:ECX.movbe [bit 22]

I ask because I'm trying to add a kvm-unit-test that makes use of this
functionality.



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