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A future patch wants to create disk definitions with non-zero default contents; to avoid crashes, all callers that allocate a disk definition should go through a common point. I found allocation points by looking for any code that increments ndisks, as well as any matches for ALLOC.*disk. Most places that modified ndisks were covered by the parse from XML to domain/device definition by initial domain creation or device hotplug; I also hand-checked all drivers that generate a device struct on the fly during getXMLDesc. * src/conf/domain_conf.h (virDomainDiskDefNew): New prototype. * src/conf/domain_conf.c (virDomainDiskDefNew): New function. (virDomainDiskDefParseXML): Use it. * src/parallels/parallels_driver.c (parallelsAddHddInfo): Likewise. * src/qemu/qemu_command.c (qemuParseCommandLine): Likewise. * src/vbox/vbox_tmpl.c (vboxDomainGetXMLDesc): Likewise. * src/vmx/vmx.c (virVMXParseDisk): Likewise. * src/xenxs/xen_sxpr.c (xenParseSxprDisks, xenParseSxpr): Likewise. * src/xenxs/xen_xm.c (xenParseXM): Likewise. * src/libvirt_private.syms (domain_conf.h): Export it. Signed-off-by: Eric Blake <eblake@redhat.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>