Specifications

Code Definitions

EFI_LEGACY_REGION_PROTOCOL.BootLock()

Summary

Sets a region to read only and ensures that flash is locked from being inadvertently

modified.

Prototype

typedef

EFI_STATUS

(EFIAPI *EFI_LEGACY_REGION_BOOT_LOCK) (

IN EFI_LEGACY_REGION_PROTOCOL *This,

IN UINT32 Start,

IN UINT32 Length,

OUT UINT32 *Granularity OPTIONAL

);

Parameters

This

Indicates the EFI_LEGACY_REGION_PROTOCOL instance

Start

Start of the region to lock.

Length

Length of the region

Granularity

Lock attribute affects this granularity in bytes.

Description

This function makes a region from 0xC0000 to 0xFFFFF read only and prevents writes to

any alias regions.

Status Codes Returned

EFI_SUCCESS

The region was made read only and flash is

locked.