diff --git a/MdePkg/Include/Guid/HiiPlatformSetupFormset.h b/MdePkg/Include/Guid/HiiPlatformSetupFormset.h
index 540483dd03..db7b80bafe 100644
--- a/MdePkg/Include/Guid/HiiPlatformSetupFormset.h
+++ b/MdePkg/Include/Guid/HiiPlatformSetupFormset.h
@@ -22,8 +22,12 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define EFI_HII_USER_CREDENTIAL_FORMSET_GUID \
   { 0x337f4407, 0x5aee, 0x4b83, { 0xb2, 0xa7, 0x4e, 0xad, 0xca, 0x30, 0x88, 0xcd } }
 
+#define EFI_HII_REST_STYLE_FORMSET_GUID \
+  { 0x790217bd, 0xbecf, 0x485b, { 0x91, 0x70, 0x5f, 0xf7, 0x11, 0x31, 0x8b, 0x27 } }
+
 extern EFI_GUID gEfiHiiPlatformSetupFormsetGuid;
 extern EFI_GUID gEfiHiiDriverHealthFormsetGuid;
 extern EFI_GUID gEfiHiiUserCredentialFormsetGuid;
+extern EFI_GUID gEfiHiiRestStyleFormsetGuid;
 
 #endif
diff --git a/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h b/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
index 4a1346a599..40fcdb7960 100644
--- a/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
+++ b/MdePkg/Include/Uefi/UefiInternalFormRepresentation.h
@@ -825,6 +825,7 @@ typedef struct _EFI_IFR_QUESTION_HEADER {
 #define EFI_IFR_FLAG_READ_ONLY          0x01
 #define EFI_IFR_FLAG_CALLBACK           0x04
 #define EFI_IFR_FLAG_RESET_REQUIRED     0x10
+#define EFI_IFR_FLAG_REST_STYLE         0x20
 #define EFI_IFR_FLAG_RECONNECT_REQUIRED 0x40
 #define EFI_IFR_FLAG_OPTIONS_ONLY       0x80
 
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 86545ac9b7..5ae190d1c6 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -645,6 +645,11 @@
   ## Include/Guid/Btt.h
   gEfiBttAbstractionGuid         = { 0x18633bfc, 0x1735, 0x4217, { 0x8a, 0xc9, 0x17, 0x23, 0x92, 0x82, 0xd3, 0xf8 }}
 
+  # GUIDs defined in UEFI2.8
+  #
+  ## Include/Guid/HiiPlatformSetupFormset.h
+  gEfiHiiResetStyleFormsetGuid     = { 0x790217bd, 0xbecf, 0x485b, { 0x91, 0x70, 0x5f, 0xf7, 0x11, 0x31, 0x8b, 0x27 }}
+
   #
   # GUID defined in PI1.0
   #