QEMU v2.11 released

QEMU v2.11 is out. Here are the highlights from a KVM on Z perspective:

• TOD-Clock Epoch Extension Support: Extends the TOD clock beyond the year 2042.
• Setting sysctl vm.allocate_pgste is now superfluous.
• Netboot: The network boot firmware sets the client architecture option (93) in the DHCP request to 0x1f ("s390 Basic"). This allows a DHCP server to deliver the correct boot image for IBM Z guests. This is useful in situations where a single DHCP server has to provide network boot images for multiple architectures, e.g. for the purpose of installing operating systems.
• Added support for virtio-input-ccw and virtio-gpu-ccw. These newly supported devices lay the foundation for applications that require graphical interfaces, which thereby become usable from remote via VNC or SPICE.
  Here is a sample XML snippet for a guest definition:
  
      <input type='keyboard' bus='virtio'/>
      <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'>
        <listen type='address' address='0.0.0.0'/>
      </graphics>
      <video>
        <model type='virtio' heads='1' primary='yes'/>
      </video>