[Fedora-xen] Dump guest memory in Xen?

[Mark McLoughlin]

On Mon, 2008-05-19 at 16:29 +0100, Richard W.M. Jones wrote:
> I might be missing something obvious but ...
> 
> QEMU has a nice 'memsave' command which lets you save/dump parts of
> guest memory to a file.  Is there a similar feature in Xen?
> 
> (Note I don't want to dump all memory to a core file, just snoop on
> small sections of memory).

Don't know of a tool to do that, but you can map the guest's memory
using the xc_map_foreign_*() API.

Take a look at xen/tools/xentrace/xenctx.c to see how it pokes around in
guest memory when dumping a stack trace.

Cheers,
Mark.