Which ring does qemu perform?

What ring does qemu perform if it is not associated with an existing hypervisor?

Any complete documentation on the matter would be appreciated as well.

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linux qemu kvm xen lxc


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2 answers


QEMU always runs in a custom ring, even when bound to a hypervisor.



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Qemu operates at ring level 3 (user space), and the "KVM" hypervisor that it uses for hardware mode runs at level 0 (kernel).



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