That's exactly the same as x86. Nested virtualization support is almost entirely... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

bonzini 33 days ago | parent | context | favorite | on: Januscape: Guest-to-Host Escape in KVM/x86 [CVE-20...

That's exactly the same as x86. Nested virtualization support is almost entirely in the hypervisor.

nijave 33 days ago [–]

x86 doesn't have a firmware hypervisor that allows splitting into LPARs.

That's showing 3 layers of nesting: LPAR, hypervisor, nested hypervisor

bonzini 33 days ago | [–]

On 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.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact