[Libvir] [RFC] Life-cycle Management of the domain take2

Hi, I'm making a patch to provide a changing allocation dynamically and statically without keeping state at the library. And this is still uncompleted works, but I would like to hear your comments. Attached patch shows below: # virsh --help setmem NAME setmem - change memory allocation SYNOPSIS virsh setmem <domain> <kilobytes> [ --static | --dynamic ] DESCRIPTION Change the current memory allocation in the guest domain. OPTIONS <domain> domain name, id or uuid <kilobytes> number of kilobytes of memory --static static change --dynamic dynamic change First, I made upper interface. --- virsh.c ( attached file "add_option2virsh.patch ) - add 2 options as follows: --dynamic, --static - call new APIs: virDomainSetMaxMemory -> virDomainSetMaxMemoryScope virDomainSetMemory -> virDomainSetMemoryScope virDomainSetVcpus -> virDomainSetVcpusScope --- libvirt.c ( attached file "add_option2libvirt.patch ) - add 3 APIs: virDomainSetMaxMemoryScope virDomainSetMemoryScope virDomainSetVcpusScope and I will add lower driver as follows in the case of setmem. --- drivers ( attached file "add_option2driver.patch ) - xen_unified.c : add xenUnifiedDomainSetMemoryScope - xend_internal.c : add xenDaemonDomainSetMemoryScope - other : set NULL to domainSetMemoryScope I plan to achieve allocation dynamically and statically by such a way at xenDaemonDomainSetMemoryScope. 1. get configuration from the Xen Daemon using sexpr_get. 2. change the value when static option is specified, change the node of configuration using new API that I will make. when dynamic option is specified, change the allocation using xend_op 3. set configuration to the Xen Daemon using xend_op Why I did not use virDomainGetXMLDesc and virDomainDefineXML was some elements ware lost in current XML. For example, there is no "vncpasswd", "cpus", "localtime" in XML configuration with virDomainGetXMLDesc. So when I set the "vncpasswd" the "vncpasswd" will disappear after I define the XML configuration. How does this sound ? Thanks, Saori Fukuta.