diff --git a/MdePkg/Include/Register/Amd/SevSnpMsr.h b/MdePkg/Include/Register/Amd/SevSnpMsr.h
index 1b8fbc1978..5187f965a6 100644
--- a/MdePkg/Include/Register/Amd/SevSnpMsr.h
+++ b/MdePkg/Include/Register/Amd/SevSnpMsr.h
@@ -126,19 +126,106 @@ typedef union {
     ///
     /// [Bit 0] Secure Encrypted Virtualization (Sev) is enabled
     ///
-    UINT32    SevBit    : 1;
+    UINT32    SevBit              : 1;
 
     ///
     /// [Bit 1] Secure Encrypted Virtualization Encrypted State (SevEs) is enabled
     ///
-    UINT32    SevEsBit  : 1;
+    UINT32    SevEsBit            : 1;
 
     ///
     /// [Bit 2] Secure Nested Paging (SevSnp) is enabled
     ///
-    UINT32    SevSnpBit : 1;
+    UINT32    SevSnpBit           : 1;
 
-    UINT32    Reserved2 : 29;
+    ///
+    /// [Bit 3] Virtual TOM feature is enabled in SEV_FEATURES[1]
+    ///
+    UINT32    vTOM                : 1;
+
+    ///
+    /// [Bit 4] ReflectVC feature is enabled in SEV_FEATURES[2]
+    ///
+    UINT32    ReflectVC           : 1;
+
+    ///
+    /// [Bit 5] Restricted Injection feature is enabled in SEV_FEATURES[3]
+    ///
+    UINT32    RestrictedInjection : 1;
+
+    ///
+    /// [Bit 6] Alternate Injection feature is enabled in SEV_FEATURES[4]
+    ///
+    UINT32    AlternateInjection  : 1;
+
+    ///
+    /// [Bit 7] Debug Virtualization feature is enabled in SEV_FEATURES[5]
+    ///
+    UINT32    DebugVirtualization : 1;
+
+    ///
+    /// [Bit 8]  PreventHostIBS feature is enabled in SEV_FEATURES[6]
+    ///
+    UINT32    PreventHostIBS      : 1;
+
+    ///
+    /// [Bit 9] BTB isolation feature is enabled in SEV_FEATURES[7]
+    ///
+    UINT32    SNPBTBIsolation     : 1;
+
+    ///
+    /// [Bit 10] VMPL SSS feature is enabled in SEV_FEATURES[8]
+    ///
+    UINT32    VmplSSS             : 1;
+
+    ///
+    /// [Bit 11] Secure TSC feature is enabled in SEV_FEATURES[9]
+    ///
+    UINT32    SecureTsc           : 1;
+
+    ///
+    /// [Bit 12] VMGEXIT Parameter feature is enabled in SEV_FEATURES[10]
+    ///
+    UINT32    VmgexitParameter    : 1;
+
+    ///
+    /// [Bit 13] PMC Virtualization feature is enabled in SEV_FEATURES[11]
+    ///
+    UINT32    PmcVirtualization   : 1;
+
+    ///
+    /// [Bit 14] IBS Virtualization feature is enabled in SEV_FEATURES[12]
+    ///
+    UINT32    IbsVirtualization   : 1;
+
+    ///
+    /// [Bit 15]
+    ///
+    UINT32    Reserved1           : 1;
+
+    ///
+    /// [Bit 16] VMSA Register Protection feature is enabled in SEV_FEATURES[14]
+    ///
+    UINT32    VmsaRegProt         : 1;
+
+    ///
+    /// [Bit 17] SMT Protection feature is enabled in SEV_FEATURES[15]
+    ///
+    UINT32    SmtProtection       : 1;
+    ///
+    ///
+    /// [Bit 18] Secure AVIC feature is enabled in SEV_FEATURES[16]
+    ///
+    UINT32    SecureAVIC          : 1;
+
+    UINT32    Reserved2           : 4;
+
+    ///
+    /// [Bit 23] IBPB on Entry feature is enabled in SEV_FEATURES[21]
+    ///
+    UINT32    IbpbOnEntry         : 1;
+
+    UINT32    Reserved3           : 8;
   } Bits;
   ///
   /// All bit fields as a 32-bit value