AMD Confidential
User Manual September 12th, 2008
Chapter 15: Frequently Asked Questions (FAQ) 169
15 Frequently Asked Questions (FAQ) Why is the mouse cursor very difficult to control inside the simulated display area?
The mouse on the Host and in the Guest do not track each other very well in general. We
provide another mouse mode to help with this. Click on the menu item " Special
Keyboard→Grab Mouse and Keyboard", see Section 3.3, “Device Groups
A platform (*.bsd) consi sts of devices, and each device is an instance of either a device
library (*.bsl or *.so) or a device group (*.bsg). A device group is an aggregation of
devices into a single composite device that has some customized aspects (includes its
name, icon, ports, initial and default state).
Device groups are a particular class of devices. They have the same properties and
characteristics as traditional devices, but also allow the user to extend and tailor specific
device(s) to meet a particular hardware implementation or configuration. Device groups
provide a method that allows the user to group or collect one or more devices, libraries or
groups into one composite device. To the user, the composite device will look and feel no
different than a normal device library and, for the most part, the two should be
indistinguishable.
A device group can consist of one or more child devices, with some optional initialization
state associated with each child device , and those devices can optionally be connected to
each other. It may be helpful to think of a device group as a BSD within a BSD.
However, a device group also has its own identity as a device, and it can support external
connection ports that allow it be connected to other devices in the same manner as a
traditional device library.
15.1.1 Terms
If any of the language and wording used in these Device Groups sections is unclear, it
may help to refer to this list of terms.
Device: A device library or device group (also, a known device or created device).
Device Library: Contains binary implementation of device functionality; has no child
devices; associated with a “*.bsl” Windows or “*.bsl” Linux file.
Device Group: Grouping of one or more devices (libraries and groups) into a single
device; gets its functionality through aggregation of its children, and from its group-
specific properties/aspects; associated with a “*.bsg” file.
Known Device: A device that the shell knows about (i.e., the shell has all the necessary
information to create an instance of this device). Known devices appear in the le ft hand
pane of the Device Viewer window; and on the console using shell.KnownDevices.
Created Device: An instantiation of a known device. All devices in a BSD are created
devices. Created devices appear in the right hand pane of the Device Viewer window; and
on the console using “shell.CreatedDevices”.