[Xen-devel] sharing memory between qemu and domu without grant tables or vmexits...

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

Is it possible to share a page of memory between qemu in dom0 and domu
without using grant tables and without domu access to that page causing
a vmexit?

To set up a custom kernel debug dll under windows I need to load very
early, much earlier than my PV drivers. To have any hope of usefully
increasing the speed over serial port debugging I need to be able to
transfer data faster than 1-byte-per-vmexit...

Thanks

James

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