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When probing the <emulator> with '-help' to determine if it is the old qemu, errors are reported if the emulator doesn't exist libvirt: error : internal error: Child process (/usr/lib/xen/bin/qemu-dm -help) unexpected exit status 127: libvirt: error : cannot execute binary /usr/lib/xen/bin/qemu-dm: No such file or directory Avoid the probe if the specified emulator doesn't exist, squelching the error. There is no behavior change since libxlDomainGetEmulatorType() would return LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN if the probe failed via virCommandRun(). Signed-off-by: Jim Fehlig <jfehlig@suse.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>