I wish to set the virtualized hardware time to a fixed value uponbootup. In Qemu, this is easy:qemu-kvm \    -rtc base=2011-11-11T11:11:00 \    However I fail to see a way of adding this to a guestconfiguration in libvirt (v2.2.0). Some of theparametersof Qemu appear to be supported, but it would appear that dateis not among them. Is there another way?
set guest hardware time
qemu;libvirt
Turns out libvirt supports direct passing of command linearguments to the Qemu backend. In order to unlock thisfunctionality, one needs to include the relevant namespacein the guest definition:-<domain type='kvm'>+<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>Now one has access to the tag commandline. Inside it,arguments are specified using a series of arg elements:<qemu:commandline>  <qemu:arg value='-rtc'/>  <qemu:arg value='base=2011-11-11T11:11:00'/></qemu:commandline>That end up being appended to Qemus argv[].