Ubuntu
libvirt package

  1. Bug #1561019
  2. Comment #7

Comment 7 for bug 1561019

Revision history for this message
Serge Hallyn (serge-hallyn) wrote :

Actually this was done deliberately by upstream qemu:

commit 75d373ef9729bd22fbc46bfd8dcd158cbf6d9777
Author: Eduardo Habkost <email address hidden>
Date: Fri Oct 3 16:39:51 2014 -0300

    target-i386: Disable SVM by default in KVM mode

    Make SVM be disabled by default on all CPU models when in KVM mode.
    Nested SVM is enabled by default in the KVM kernel module, but it is
    probably less stable than nested VMX (which is already disabled by
    default).

    Add a new compat function, x86_cpu_compat_kvm_no_autodisable(), to keep
    compatibility on previous machine-types.

So that explains why this regressed in wily. The solution is
to add the SVM flag to the qemu64 machine type in
debian/patches/ubuntu/expose-vmx_qemu64cpu.patch