Introduction to the Xen Virtual Machine (Linux Journal)

Introduction to the Xen Virtual Machine (Linux Journal)

Posted Sep 2, 2005 1:43 UTC (Fri) by mmarq (guest, #2332)
In reply to: Introduction to the Xen Virtual Machine (Linux Journal) by mmarq
Parent article: Introduction to the Xen Virtual Machine (Linux Journal)

Sorry to comment myself...

" RTAI/Fusion runs also in a hypervisor mode similar to Xen, so is kind'a logic that an integration between the two under the benevolent dictatorship of Linux could be possible and achived without clashes "

Tought far from being an expert, i belive that is clear that the point i've being trying to make here is technical in nature and not political.

Xen prescribes an isolated, hardened(crash free) environment por drivers. RTAI/Fusion also prescribes some how a separeted layer for deterministic real time and no, being my opinion that would be tremendously advantageous to have all *hardware device drivers* (not filesystems) in a deterministic real-time mode, with different time requirement dependending on the systems ,sub-systems and applications, but hard real-time none the less.

With hotplugging going everywhere, with asynchronousity also going everywhere, and with the widespread of everytype of "plug & play" devices and with the use of more than 1 processor protected memory addressing rings, its each time more evident a political artifiality for keeping all drivers close tight in the tree.

Better with a proven crash free enviroment for drivers, it will fall and smash's itself in the ground the principal objection for out of tree drivers.

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