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IBM mainframes might but I have a very shallow understanding. Found this https://sixe.eu/news/kvm-nested-vms-ibm-power-linux-lpar https://sixe.eu/news/kvm-nest
by nijave 3mo ago
IBM mainframes might but I have a very shallow understanding.
Found this https://sixe.eu/news/kvm-nested-vms-ibm-power-linux-lpar https://sixe.eu/news/kvm-nested-vms-ibm-power-linux-lpar
- bonzini 3mo agoThat's exactly the same as x86. Nested virtualization support is almost entirely in the hypervisor.
- nijave 3mo agox86 doesn't have a firmware hypervisor that allows splitting into LPARs. That's showing 3 layers of nesting: LPAR, hypervisor, nested hypervisor
- bonzini 3mo agoOn POWER, LPARs and the first level of hypervisor do not use any LPAR-specific nesting support in the processor. It's all handled by the firmware, not the hardware.