What is Nested paging?
Hardware that walks two levels of page tables in succession, one managed by the guest OS and one by the hypervisor. It reduces hypervisor intervention and speeds up virtualization.
Field: OS & Hardware
Nested paging in the explanations
With nested paging, hardware translates through the guest's page tables to a guest physical address and then through the hypervisor's tables to a host physical address.
In virtualization with nested paging (two-stage address tra…CPU virtualization support and nested paging underpin their performance.
What is the software called that runs multiple operating sy…
Questions that mention Nested paging (3)
- In virtualization with nested paging (two-stage address translation), which describes what the hardware does?
- In nested paging where both guest and host use 4-level page tables, how many memory accesses can a TLB miss require in the worst case?
- What is the software called that runs multiple operating systems simultaneously on one computer, each as an independent virtual machine?
Related terms
Hypervisor TLB (translation lookaside buffer) Device driver ASID Context switch Copy-on-write Demand paging Interrupt handler Interrupt vector table IOMMU