HddSecurity

Overview

This DXE driver implements the AMI HddSecurity Protocol for managing ATA device security features, including password protection and secure erase, on both legacy IDE (Block I/O) and AHCI (Storage Security Command) controller interfaces. It installs protocol notifications to detect block I/O and ATA pass-through controllers, performs ATA security command transactions via passthrough, and publishes HII forms for user interaction through BIOS setup.

Key Functions

• HddSecurityDriverEntry -- Entry point; installs protocol notifications for Block I/O and ATA pass-through
• HddSecurityBindingStart -- Binds to a detected ATA controller and publishes HddSecurity protocol
• HddSecurityBindingStop -- Unbinds from an ATA controller
• HddSecurityPasswordSet -- Issues ATA security password set command
• HddSecurityPasswordUnlock -- Issues ATA security unlock command
• HddSecurityErase -- Issues ATA secure erase command
• HddSecurityFormCallback -- Handles HII form input for security operations

Dependencies

• Block I/O Protocol (gEfiBlockIoProtocolGuid)
• Storage Security Command Protocol (gEfiStorageSecurityCommandProtocolGuid)
• ATA Pass-Through Protocol (gEfiAtaPassThroughProtocolGuid)
• HII Package List Protocol (gEfiHiiPackageListProtocolGuid)
• AMI HddSecurity Protocol (gAmiHddSecurityProtocolGuid)
• UEFI Device Path Protocol

Platform

X64 UEFI DXE driver, PE32+ format, 5 sections (.text, .rdata, .data, section_3, .xdata). The largest of the eight modules at ~26 KB with substantial .data for ATA command logging.