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For S390, the default console target type cannot be of type 'serial'. It is necessary to at least interpret the 'arch' attribute value of the os/type element to produce the correct default type. Therefore we need to extend the signature of defaultConsoleTargetType to account for architecture. As a consequence all the drivers supporting this capability function must be updated. Despite the amount of changed files, the only change in behavior is that for S390 the default console target type will be 'virtio'. N.B.: A more future-proof approach could be to to use hypervisor specific capabilities to determine the best possible console type. For instance one could add an opaque private data pointer to the virCaps structure (in case of QEMU to hold capsCache) which could then be passed to the defaultConsoleTargetType callback to determine the console target type. Seems to be however a bit overengineered for the use case... Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>