[bonzini]

KVM is pretty much the only hypervisor that cloud vendors use these days.

So it's true that "most cloud workloads run on type 1 hypervisors" (KVM is one) but not that most cloud vendors/workloads run on microkernel-like hypervisors, with the exception of Azure.

[pjmlp]

You definitly didn't understood my commment.

[bonzini]

Then can you explain how cloud workloads is the revenge of the microkernel, since there is exactly 1 major cloud provider that uses a microkernel-like hypervisor?

[pjmlp]

By not running monolithic kernels on top of bare metal, rather virtualized, or even better with nested virtualization, thus throwing out the door all the supposedly performance advantages in the usual monolithic vs microkernel flamewar discussions, regarding context switching.

Additionally to make it to the next level, they run endless amount of container workloads.