Public bug reported:

Using the official Ubuntu 19.10 arm64 image,
http://cdimage.ubuntu.com/ubuntu/releases/19.10/release/ubuntu-19.10
-preinstalled-server-arm64+raspi3.img.xz, with the 5.3.x Linux kernel
has KVM/VIRTUALIZATION disabled by default and therefore /dev/kvm
acceleration is not available on installations on newer Raspberry Pi 4
(for example) which has a supported processor (armv8) by KVM
(https://www.linux-kvm.org/page/Processor_support#ARM:).

I'm able to compile the kernel manually with the options enabled in the
kernel config (http://dl.rohityadav.cloud/cloudstack-rpi/kernel-19.10/)
and further verify that it works well in deploying ARM64 VMs
(http://dl.rohityadav.cloud/cloudstack-rpi/template/). I went a bit
further to deploy an Apache CloudStack based IaaS deployment and verify
that it works as well. Having KVM enabled arm64 devices would enable
testing and misc use-cases on newer boards such as the Raspberry Pi 4 (4
GB RAM).

Can the Ubuntu kernel team advise why KVM is not enabled in the kernel
by default, and if this will change in future? Thanks.

** Affects: linux-raspi2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: arm64 kernel kvm pi raspberry ubuntu

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https://bugs.launchpad.net/bugs/1849369

Title:
  Ubuntu 19.10 ARM64 kernel has KVM disabled by default

Status in linux-raspi2 package in Ubuntu:
  New

Bug description:
  Using the official Ubuntu 19.10 arm64 image,
  http://cdimage.ubuntu.com/ubuntu/releases/19.10/release/ubuntu-19.10
  -preinstalled-server-arm64+raspi3.img.xz, with the 5.3.x Linux kernel
  has KVM/VIRTUALIZATION disabled by default and therefore /dev/kvm
  acceleration is not available on installations on newer Raspberry Pi 4
  (for example) which has a supported processor (armv8) by KVM
  (https://www.linux-kvm.org/page/Processor_support#ARM:).

  I'm able to compile the kernel manually with the options enabled in
  the kernel config (http://dl.rohityadav.cloud/cloudstack-
  rpi/kernel-19.10/) and further verify that it works well in deploying
  ARM64 VMs (http://dl.rohityadav.cloud/cloudstack-rpi/template/). I
  went a bit further to deploy an Apache CloudStack based IaaS
  deployment and verify that it works as well. Having KVM enabled arm64
  devices would enable testing and misc use-cases on newer boards such
  as the Raspberry Pi 4 (4 GB RAM).

  Can the Ubuntu kernel team advise why KVM is not enabled in the kernel
  by default, and if this will change in future? Thanks.

To manage notifications about this bug go to:
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