[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] questions regarding interdomain communication and xen-guest communication
Hello, I would like to clarify certain things about the communication mechanisms between guests and between xen and guest domains. If there is an interdomain event channel set up between two guests, do they communicate directly with each other, bypassing the hypervisor completely? In case of an asynchronous I/O does one guest have to register its callbacks with the other guest directly? Or does one guest hypercall into xen, which then upcalls into the other guest and then transfer reply in the reverse using another pair of hypercall and upcall? Can event channels be set up ad hoc between two, for example, dom0 and a guest domain? Or can they only be used by drivers, e.g. between network frontend and backend drivers? Regarding xen -- domain communication: how can xen send some request to dom0 for some operation that needs to be performed in the dom0 and get back results from the dom0? Does such a communication have to be synchronous? Thanks, Aastha. -- Aastha Mehta MPI-SWS, Germany E-mail: aasthakm@xxxxxxxxxxx _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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