produce windows compatible dump file from Dom0

["James Harper" <james.harper@bendigoit.com.au>]

I'm interested in being able to produce a windows dump file from Dom0,
which would help immensely in tracking down crashes when they happen.
What it would involve is:

. PV driver would need to prepare a crash dump header via Windows API
(in advance, and then at crash dump time if possible), store it in
non-paged memory, and write the PFN out to xenstore
. xc would need to detect a parameter (eg -w), check for the value in
xenstore, then write out that as the header and then write out the rest
of the data in windows dump format. The header could also be detected by
scanning memory (eg if the crash happened before xenbus was able to
start) but would be a bit less reliable.

It might also be possible to manufacture the header from Dom0, but I
can't say for sure.

Does this feature or similar already exist in any incantations of the
dom0 tools?

If not, would it be considered for inclusion into some future version of
xen?

Thanks

James