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caisan / VFIO_nested.md
Created July 9, 2020 12:27 — forked from mcastelino/VFIO_nested.md
QEMU VFIO in Nested VM vIOMMU

How to use VFIO to assign a device to nested VM

  • Here the vfio-pci device is passed in into the L1 VM
  • The L1 VM is setup with kernel_irqchip=split
  • The L0 exposes a virtual IOMMU to the L1 VM
qemu-system-x86_64 \
    -machine q35,accel=kvm,kernel_irqchip=split \
    -enable-kvm \
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caisan / rootfs_ubuntu_16.04_btrfs.md
Created January 10, 2020 08:21 — forked from niflostancu/rootfs_ubuntu_16.04_btrfs.md
Installing Ubuntu 16.04 on btrfs using debootstrap

Installing Ubuntu 16.04 with btrfs using debootstrap

Partition layout

First, create a GPT partition table.

  1. boot partition, label: EFI, flags: boot + ESP; size: 1GB, format to FAT32;
  2. root partition (label: root), must same size on all devices!
  3. swap partition.