Nested virtualization & PCI pass-through
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This document discusses nested virtualization and PCI pass-through, which allow testing virtualized environments without requiring physical hardware. It provides information on host system configuration, including enabling VMCS shadowing and assigning devices to VMs. Configuration for OpenNebula management is also covered, such as modifying device filters and deployment tweaks to interface host devices. Resources for further information on related topics from Intel, Red Hat, and StorPool are included. The document concludes by thanking the audience and providing contact details for StorPool.
Nested virtualization & PCI pass-through
- 1. Nested virtualization & PCI pass-through 1
- 2. 2
- 3. What is it 3
- 4. Whyyyy Test virtualized environments without hardware - 100s of hypervisors without 100s of physical servers - API, test automation, dynamic environment 4
- 5. Hosts BIOS settings, VT-d, VMCS shadow kernel params: intel_iommu=on iommu=pt pci=realloc Libvirt/qemu/KVM - /etc/modprobe.d/kvm.conf options kvm-intel nested=1 options kvm-intel enable_shadow_vmcs=1 https://software.intel.com/en-us/blogs/2014/12/12/enabling-virtual-machine- control-structure-shadowing-on-a-nested-virtual-machine https://access.redhat.com/documentation/en- us/red_hat_enterprise_linux/5/html/virtualization/chap-virtualization- pci_passthrough https://access.redhat.com/documentation/en- us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration _guide/chap-guest_virtual_machine_device_configuration