Platform Integration of DFCI¶

This section of documentation is focused on UEFI firmware developers and helping them enable their platforms with the DFCI feature.

DFCI consists mostly of a software feature that is written in the DXE phase of UEFI. It has numerous architecture and platform independent modules with only a few required platform libraries. It also requires the platform adhere to and use the DFCI components to ensure the DFCI features work as designed. Finally to enable an End-To-End management scenario there maybe custom requirements in adjacent UEFI firmware components.

The DfciMenu application is optimized for mu_plus MsGraphicsPkg. It is VFR but since many platforms use custom layouts and graphical representation this area might need some adjustments. The DfciMenu application publishes a HII formset that should be located by your pre-boot UEFI menu application (e.g. "FrontPage") and displayed.

Formset GUID: gDfciMenuFormsetGuid = {0x3b82283d, 0x7add, 0x4c6a, {0xad, 0x2b, 0x71, 0x9b, 0x8d, 0x7b, 0x77, 0xc9 }}
Entry Form: #define DFCI_MENU_FORM_ID 0x2000
Source Location: DfciPkg\Application\DfciMenu

DFCI DXE Drivers¶

Dxe Driver	Location
DfciManager.efi	DfciPkg/DfciManager/DfciManager.inf
IdentityAndAuthManager.efi	DfciPkg/IdentityAndAuthManager/IdentityAndAuthManagerDxe.inf
SettingsManager.efi	DfciPkg/SettingsManager/SettingsManagerDxe.inf
DfciMenu.inf	DfciPkg/Application/DfciMenu/DfciMenu.inf

DFCI Core Libraries¶

These DFCI Standard libraries are expected to be used as is for standard functionality.

Library	Location
DfciRecoveryLib	DfciPkg/Library/DfciRecoveryLib/DfciRecoveryLib.inf
DfciSettingsLib	DfciPkg/Library/DfciSettingsLib/DfciSettingsLib.inf
DfciV1SupportLib	DfciPkg/Library/DfciV1SupportLibNull/DfciV1SupportLibNull.inf
DfciXmlDeviceIdSchemaSupportLib	DfciPkg/Library/DfciXmlDeviceIdSchemaSupportLib/DfciXmlDeviceIdSchemaSupportLib.inf
DfciXmlIdentitySchemaSupportLib	DfciPkg/Library/DfciXmlIdentitySchemaSupportLib/DfciXmlIdentitySchemaSupportLib.inf
DfciXmlPermissionSchemaSupportLib	DfciPkg/Library/DfciXmlPermissionSchemaSupportLib/DfciXmlPermissionSchemaSupportLib.inf
DfciXmlSettingSchemaSupportLib	DfciPkg/Library/DfciXmlSettingSchemaSupportLib/DfciXmlSettingSchemaSupportLib.inf
ZeroTouchSettingsLib	ZeroTouchPkg/Library/ZeroTouchSettings/ZeroTouchSettings.inf
DfciSettingPermissionLib	DfciPkg/Library/DfciSettingPermissionLib/DfciSettingPermissionLib.inf

DFCI Platform provided libraries¶

The following libraries have to be provided by the platform:

Library	Documentation	Function
DfciDeviceIdSupportLib	Documentation	Provides SMBIOS information - Manufacturer, Product, and Serial number
DfciGroupLib	Documentation	Provides lists of platform settings that are in the Dfci group settings.
DfciUiSupportLib	Documentation	Provides UI for various user interactions

DFCI Setting Providers¶

Setting providers is how a platform provides a setting to DFCI

Setting detailed overview

Mu Changes¶

DFCI Recovery service uses HTTPS certificates with Subject Alternative Names. This requires a source modification to NetworkPkg, removal of EFI_TLS_VERIFY_FLAG_NO_WILDCARDS from TlsConfigureSession().
Configure OpenSSL to support modern TLS ciphers

Platform DSC statements¶

Adding DFCI to your system consists of:

Write your settings providers. Use DfciPkg/Library/DfciSampleProvider.
Writing three library classes for the DfciDeviceIdSupportLib, DfciGroupLib, and DfciUiSupportLib.
Adding the DSC sections below.
Adding the FDF sections below.

[LibraryClasses.XXX]
  DfciXmlSettingSchemaSupportLib|DfciPkg/Library/DfciXmlSettingSchemaSupportLib/DfciXmlSettingSchemaSupportLib.inf
  DfciXmlPermissionSchemaSupportLib|DfciPkg/Library/DfciXmlPermissionSchemaSupportLib/DfciXmlPermissionSchemaSupportLib.inf
  DfciXmlDeviceIdSchemaSupportLib|DfciPkg/Library/DfciXmlDeviceIdSchemaSupportLib/DfciXmlDeviceIdSchemaSupportLib.inf
  DfciXmlIdentitySchemaSupportLib|DfciPkg/Library/DfciXmlIdentitySchemaSupportLib/DfciXmlIdentitySchemaSupportLib.inf
  ZeroTouchSettingsLib|ZeroTouchPkg/Library/ZeroTouchSettings/ZeroTouchSettings.inf
  DfciRecoveryLib|DfciPkg/Library/DfciRecoveryLib/DfciRecoveryLib.inf
  DfciSettingsLib|DfciPkg/Library/DfciSettingsLib/DfciSettingsLib.inf
  DfciV1SupportLib|DfciPkg/Library/DfciV1SupportLibNull/DfciV1SupportLibNull.inf

  DfciDeviceIdSupportLib|YOURPLATFORMPKG/Library/DfciDeviceIdSupportLib/DfciDeviceIdSupportLib.inf
  DfciUiSupportLib|YOURPLATFORMPKG/Library/DfciUiSupportLib/DfciUiSupportLib.inf
  DfciGroupLib|YOURPLATFORMPKG/Library/DfciGroupLib/DfciGroups.inf

[Components.XXX]
  DfciPkg/SettingsManager/SettingsManagerDxe.inf {
  #Platform should add all it settings libs here
  <LibraryClasses>
        NULL|ZeroTouchPkg/Library/ZeroTouchSettings/ZeroTouchSettings.inf
        NULL|YOUR_PLATFORM_PKG/Library/YOUR_FIRST_SETTING_PROVIDER.inf
        NULL|YOUR_PLATFORM_PKG/Library/YOUR_SECOND_SETTING_PROVIDER.inf
        NULL|DfciPkg/Library/DfciPasswordProvider/DfciPasswordProvider.inf
        NULL|DfciPkg/Library/DfciSettingsLib/DfciSettingsLib.inf
        NULL|DfciPkg/Library/DfciVirtualizationSettings/DfciVirtualizationSettings.inf
        DfciSettingPermissionLib|DfciPkg/Library/DfciSettingPermissionLib/DfciSettingPermissionLib.inf
  <PcdsFeatureFlag>
     gDfciPkgTokenSpaceGuid.PcdSettingsManagerInstallProvider|TRUE
  }

  DfciPkg/IdentityAndAuthManager/IdentityAndAuthManagerDxe.inf
  DfciPkg/DfciManager/DfciManager.inf
  DfciPkg/Application/DfciMenu/DfciMenu.inf

Platform FDF statements¶

[FV.YOUR_DXE_FV]
INF  DfciPkg/SettingsManager/SettingsManagerDxe.inf
INF  DfciPkg/IdentityAndAuthManager/IdentityAndAuthManagerDxe.inf
INF  DfciPkg/Application/DfciMenu/DfciMenu.inf
INF  DfciPkg/DfciManager/DfciManager.inf

Testing DFCI operation¶

Please refer to the DFCI TestCase documentation