xen: add generic flag to elf_dom_parms indicating support of unmapped initrd
Support of an unmapped initrd is indicated by the kernel of the domain
via elf notes. In order not to have to use raw elf data in the tools
for support of an unmapped initrd add a flag to the parsed data area
to indicate the kernel supporting this feature.
Switch using this flag in the hypervisor domain builder.
Cc: andrew.cooper3@citrix.com
Cc: jbeulich@suse.com
Cc: keir@xen.org
Suggested-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>