[Xen-devel] How to decide the xenstore path for a domain

[Bei Guan <gbtju85@xxxxxxxxx>]

Hi,

Can anyone tell me how to decide the number in the Xenstore key path for a DomU's front driver? 

In Mini-OS, the block front driver write the key-value to "device/vbd/768/[ring-ref|event-channelprotocol|...]" according to the code mini-os/blkfront.c.

So why does it use the number "768" in the path here? Can this number be another one? For a new DomU's block front driver, how to decide this number?

Thank you very much.

Best Regards,

Bei Guan

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