3 ms·

I'm puzzled by your comment. On an EC2 instance of AL2023 deployed on us-east-1 region this is the output of hostnamectl: [ec2-user][~]$ hostnamectl Stati

• wmf 2y ago
  What instance type is it?
• bonzini 2y ago
  KVM can emulate the Xen hypercall interface. Amazon is not using Xen anymore.
• simcop2387 2y ago
  I'm not quite sure the status of it at least, but reported back in 2017 that they are moving off Xen https://www.theregister.com/2017/11/07/aws_writes_new_kvm_based_hypervisor_to_make_its_cloud_go_faster https://www.theregister.com/2017/11/07/aws_writes_new_kvm_ba... It could be that it's not all over and tied to specific machine types still, or there's something they've done to make it report to the guest still that it's xen based for some compatibility reasons.
• blaerk 2y ago
  I think some older instance types are still on xen, later types run kvm (code named nitro.. perhaps?). I can’t remember the exact type but last year we ran into some weird issues related to some kernel regression that only affected some instances in our fleet, turns out they where all the same type and apparently ran on xen according to aws support