Monday, December 18, 2017

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.

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