Re: [Xen-devel] [PATCH] External device migration support

["Michael Paesold" <mpaesold@xxxxxx>]

Stefan Berger wrote:

> This patch enables external devices, such as for example a mounted hard
> drive image or a TPM, to be migrated to a remote machine. The patch
> hooks into the checkpointing (XendCheckpoint.py) code and performs
> migration in 4 different steps:
...
> Please let me know what you think about this idea.
I really like the idea because it seems to work for any external device that 
can be migrated but does not allow concurrent access from both migration 
source and destination.
I have not looked at the patch in detail, but I saw the specific inclusion 
of
+# The tool used for initiating virtual TPM migration
+#(vtpm-migration-tool '')

Could this migration tool specification be more generalized so that any 
device migration can be configured, not just vtpm devices?
Best Regards,
Michael Paesold



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