1 files changed, 19 insertions, 2 deletions
diff --git a/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h b/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
index c7fb63168f..5381716d81 100644
--- a/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
+++ b/IntelFsp2Pkg/Include/Guid/FspHeaderFile.h
@@ -52,7 +52,7 @@ typedef struct {
   UINT8     Reserved1[2];
   ///
   /// Byte 0x0A: Indicates compliance with a revision of this specification in the BCD format.
-  ///            For revision v2.3 the value will be 0x23.
+  ///            For revision v2.4 the value will be 0x24.
   ///
   UINT8     SpecVersion;
   ///
@@ -93,11 +93,28 @@ typedef struct {
   ///   Bit 0: Graphics Support - Set to 1 when FSP supports enabling Graphics Display.
   ///   Bit 1: Dispatch Mode Support - Set to 1 when FSP supports the optional Dispatch Mode API defined in Section 7.2 and 9. This bit is only valid if FSP HeaderRevision is >= 4.
   ///   Bit 2: 64-bit mode support - Set to 1 to indicate FSP supports 64-bit long mode interfaces. Set to 0 to indicate FSP supports 32-bit mode interfaces. This bit is only valid if FSP HeaderRevision is >= 7.
-  ///   Bits 15:3 - Reserved
+  ///   Bit 3: FSP Variable Services Support - Set to 1 to indicate FSP utilizes the FSP Variable Services defined in Section 9.6 to store non-volatile data. This bit is only valid if FSP HeaderRevision is >= 7.
+  ///   Bits 15:4 - Reserved
   ///
   UINT16    ImageAttribute;
   ///
   /// Byte 0x22: Attributes of the FSP Component.
+  ///   Bit 0 - Build Type
+  ///     0 - Debug Build
+  ///     1 - Release Build
+  ///   Bit 1 - Release Type
+  ///     0 - Test Release
+  ///     1 - Official Release
+  ///   Bit 11:2 - Reserved
+  ///   Bits 15:12 - Component Type
+  ///     0000 - Reserved
+  ///     0001 - FSP-T
+  ///     0010 - FSP-M
+  ///     0011 - FSP-S
+  ///     0100 - FSP-I (FSP SMM)
+  ///     0101 to 0111 - Reserved
+  ///     1000 - FSP-O
+  ///     1001 to 1111 - Reserved
   ///
   UINT16    ComponentAttribute;
   ///