Intel Extensible Firmware Interface, Specification

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Glossary
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GUID Partition Table Header
The header in a GUID Partition Table . Among other things, it contains the number of
partition entries in the table and the first and last blocks that can be used for the entries.
GUID Partition Entry
A data structure that characterizes a GUID Partition . Among other things, it specifies
the starting and ending LBA of the partition.
Handle
See Device Handle .
Hardware Device Path
A Device Path that defines how a hardware device is attached to the resource domain of
a system (the resource domain is simply the shared memory, memory mapped I/O, and
I/O space of the system).
IA-32
See Intel Architecture-32 .
Image
An executable file stored in a file system that complies with this specification. Images
may be drivers, applications or OS loaders. Also called an EFI Image.
Image Handle
A handle for a loaded image; image handles support the loaded image protocol.
Image Handoff State
The information handed off to a loaded image as it begins execution; it consists of the
image’s handle and a pointer to the image’s system table.
Image Header
The initial set of bytes in a loaded image. They define the image’s encoding.
Image Services
The set of functions used to manage EFI images. Includes
LoadImage()
,
StartImage()
,
UnloadImage()
,
Exit()
,
ExitBootServices()
, and
EFI_IMAGE_ENTRY_POINT
.
Intel Architecture-32 (IA-32)
The 32-bit and 16-bit architecture described in the Intel Architecture Software
Developer’s Manual . IA-32 is the architecture of the Intel P6 family of processors,
which includes the Intel
®
Pentium
®
Pro, Pentium II, and Pentium III processors.