+qemu
+----------------------------------------------------------------------
+
+By far the most common problem is with broken or incompatible
+qemu releases.
+
+Different versions of qemu have problems booting the appliance for
+different reasons. This varies between versions of qemu, and Linux
+distributions which add their own patches.
+
+If you find a problem, you could try using your own qemu built from
+source (qemu is very easy to build from source), with a 'qemu
+wrapper'. Qemu wrappers are described in the guestfs(3) manpage.
+
+
+Note on using KVM
+----------------------------------------------------------------------
+
+By default the configure script will look for qemu-kvm (KVM support).
+You will need a reasonably recent processor for this to work. KVM is
+much faster than using plain Qemu.
+
+You may also need to enable KVM support for non-root users, by following
+these instructions:
+
+ http://www.linux-kvm.org/page/FAQ#How_can_I_use_kvm_with_a_non-privileged_user.3F
+
+On some systems, this will work too:
+
+ chmod o+rw /dev/kvm
+
+On some systems, the chmod will not survive a reboot, and you will
+need to make edits to the udev configuration.
+
+
+vmchannel