Developer Guide

  • 10/27/2020
  • Public Content

Host Interface Service

The Intel® DAL Host Interface Service (Intel® DAL HIS) is part of the Intel DAL infrastructure and serves as an intermediate layer between host applications and the Intel DAL firmware component:
  • The Intel® DAL HIS serves as the communications channel between trusted applications and host-based applications.
  • The Intel DAL HIS maintains the virtual model and state of the Intel DAL firmware subsystem. Among its roles is to ensure loaded trusted applications remain loaded after a firmware or machine reset.
: While the component's official name is Intel® DAL Host Interface Service (Intel® DAL HIS), it is commonly referred to by its engineering name: JHI.
See How to Create Your First Project for a C++ implementation example, as well as a C# implementation under "Create a .NET* Host Application".

Product and Performance Information


Performance varies by use, configuration and other factors. Learn more at