HP Integrity VM Accelerated Virtual I/O Overview

o The host AVIO drivers also use guest isolation services provided by Integrity VM to
validate guest addresses prior to forwarding onto the physical driver. This ensures
that AVIO provides the same level of guest isolation as the current, fully-virtualized,
SCSI and LAN solutions.
o Further, attempts by the Guest to set MAC addresses that match the backing
networking interface are prevented by the host AVIO LAN driver. This prevents any
attempts by the guest to “spoof” traffic destined for the host interface.
• Integrity VM Services – Integrity VM provides services for configuration, management,
and Guest isolation for AVIO Storage and Networking HBAs and devices.
Emulated versus Accelerated Integrity VM Guest Drivers
The Integrity VM product uses two models for delivering virtual machine guest drivers: emulated (that
is, fully virtualized) or accelerated (that is, virtual machine aware
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). This section examines the key
differences between each model as well as their associated benefits and drawbacks.
First, let’s look at the VM emulated driver model. This model is used by the existing MPT SCSI and
LAN adapters. Figure 2 illustrates the high-level details of the emulated Integrity VM guest driver
model:
Figure 2 Integrity VM Fully Virtualized I/O Model
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Accelerated or virtual machine aware guest drivers are also referred to as Para virtualized drivers.