Novell SUSE Linux Enterprise Server 10 Manuale Utente Pagina 24

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Xen Architecture – Simple View
Hardware
Hypervisor
Linux
Dom0
Pd
Linux
Dom1
Vd
Netware
Dom2
Vd
Pd = Physical Device Driver
Vd = Virtual Device Driver
Dom0 is the management
domain for Xen guests
controls compute resources
dynamically
(e.g. memory, CPU, I/O)
provides interfaces to the
physical server.
provides administration tools
and interfaces
Hypervisor
is the virtual interface to the
hardware – virtualizes the
hardware
manages conflicts caused by
OS access to privileged
machine instructions
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