This avoids having to copy testresults, makes results of cancelled runs
browsable (runs may actually be followed live) and preserves old results
when rebuilding guest images (e.g. when using the build-strongswan script).
The number of consecutive test runs without any intermittent rebuild of the
guest images is also not limited by the image size anymore.
This allows accessing the guests with `virsh console <name>`.
Using a serial console would also be possible but our kernel configs
have no serial drivers enabled, CONFIG_VIRTIO_CONSOLE is enabled though.
So to avoid having to recompile the kernels let's do it this way, only
requires rebuilding the guest images.
References #729.
The most significant change is that CONFIG_ACPI_PROC_EVENT is now
finally removed (after being deprecated for a long time).
So to successfully shutdown the guests via ACPI the CONFIG_INPUT_EVDEV
option is now enabled.
This simplifies capturing traffic with Wireshark on the host as each of
the guest's interfaces is clearly identified.
The three bridges were previously numbered starting from 0, this scheme
is restored here.
Passthrough mode only works as expected when running as root. On
Debian/Ubuntu systems qemu runs as user 'libvirt-qemu' and group 'kvm'
so all shared files must be chowned to grant access from guests.
Symlinks created on the host are still problematic because the Plan 9
filesystem has no direct notion of symbolic links, see [1].
[1] - http://ericvh.github.com/9p-rfc/rfc9p2000.u.html
Guest and network configuration is setup using the libvirt
virtualization API. The [start|stop]_testing scripts have been updated
accordingly.
qemu/KVM does not currently support a hostfs, so the shared build tree
mount has been dropped for now.
