Ubuntu on IBM z Systems

  1. Bug #1913266
  2. Comment #0

Comment 0 for bug 1913266

Revision history for this message
bugproxy (bugproxy) wrote :

Problem:
vsock can't be used with Secure Execution

---uname output---
Linux se1 5.4.0-62-generic #70-Ubuntu SMP Tue Jan 12 16:27:38 UTC 2021 s390x s390x s390x GNU/Linux

Machine Type = z15 8562

---Debugger---
A debugger is not configured

---Steps to Reproduce---
In a Secure Execution environment the Qemu driver vhost-vsock-ccw driver requires the argument "iommu_platform=on".

E.g. "qemu-system-s390x -device vhost-vsock-ccw,guest-cid=42,iommu_platform=on ..."

Currently Libvirt does not support this argument. Therfore Vsock can't be defined in XML correctly. Libvirt Version is 6.0.0-0ubuntu8.5.

Userspace tool common name: virsh
The userspace tool has the following bit modes: 64
Userspace rpm: libvirt-clients
Userspace tool obtained from project website: na

Please apply this update to 21.04, 20.10 and 20.04 !