[Qemu-devel] [PATCH 0/7] merge some xen bits into qemu

[Gerd Hoffmann <kraxel@redhat.com>]

  Hi folks,

This is the second version of the xen support for qemu patch series,
addressing review comments.  Lots of little changes, the largest
change probably is the switch-over to the esisting sys-queue.h list
implementation instead of bringing in a copy of the linux kernel
list.h header.

The console and framebuffer backend drivers are largely based on the
xen code, the other bits are rewritten from scratch.  Nevertheless
the code should be functionally identical.

Overview (individual patches have longer descriptions):

  #1 -- groundwork: build system, cmd line options, ...
  #2 -- xen backend driver infrastructrure
  #3 -- xen console backend driver
  #4 -- xen framebuffer backend driver
  #5 -- xen block backend driver
  #6 -- xen nic backend driver
  #7 -- allow xen disks and nics being configured via qemu command
        line options.

With the first four patches in place upstream qemu can replace xen's
qemu-dm for paravirtual domains.  The block and nic backend drivers
are full userspace implementations using the grant table device
(gntdev).

xen support is implemented using another machine type.  xen's qemu-dm
already uses the machine type to switch between paravirtualized and
fully virtualized machines, so this was the natural choice.  qemu has
gets a new "xenpv" machine type additionally to the "pc" and "isapc"
ones.

Comments?

cheers,
  Gerd