[Libvir] [PATCH] add bootloader_args to libvirt xml to support bootloaders (like pypxeboot for example) that require arguments

[Hugh Brock]

This patch extends libvirt's XML to include a paramater Xen already 
supports in sexpr, "bootloader_args." The bootloader_args parameter lets 
you pass arguments -- "mac=aa:12:34:56:78:90" for example -- to a 
bootloader program that xend invokes when it starts a guest. One such 
program, pypxeboot, uses the mac= argument to communicate with a dhcp 
server and retrieve the pxeboot kernel and initrd for a paravirt guest.

The patch includes new tests for the bootloader_args XML and sexpr, 
which pass.

Note that for the head of current libvirt, the virsh tests do not pass 
and virsh will not connect to the xen hypervisor. I don't know if this 
is my own build environment or some other issue. However the failure is 
the same with or without this patch, so I am submitting it anyway.

Please let me know what you think...

--Hugh


-- 
Red Hat Virtualization Group http://redhat.com/virtualization
Hugh Brock           | virt-manager http://virt-manager.org
hbrock at redhat.com    | virtualization library http://libvirt.org
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