Part 2: Core Concepts

Master the fundamental building blocks of UEFI firmware.

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What You’ll Learn

Chapter	Topics
4. Driver Model	Drivers vs applications, binding protocol, driver types
5. Protocols and Handles	Handle database, GUIDs, protocol installation
6. Memory Services	Pool/page allocation, memory map, memory types
7. Boot & Runtime Services	Service tables, ExitBootServices, runtime access

Key Concepts

flowchart TB
    subgraph UEFI Core
        H[Handle Database]
        P[Protocols]
        BS[Boot Services]
        RS[Runtime Services]
    end

    subgraph Your Code
        D[Drivers]
        A[Applications]
    end

    D --> |Install| P
    D --> |Register with| H
    A --> |Locate| P
    A --> |Use| BS
    A --> |Use| RS

    style H fill:#e74c3c,color:#fff
    style P fill:#3498db,color:#fff
    style BS fill:#2ecc71,color:#fff
    style RS fill:#9b59b6,color:#fff

Prerequisites

Before starting this section:

• Complete Part 1 (environment setup and Hello World)
• Understand basic UEFI boot flow

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Skill Level: Intermediate Prerequisites: Part 1 complete, basic C programming

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Table of contents

• 4. Driver Model
• 5. Protocols and Handles
• 6. Memory Services
• 7. Boot & Runtime Services