Changeset 108794 in vbox for trunk/src/VBox/Devices/EFI/FirmwareNew/OvmfPkg/Library/BaseMemEncryptSevLib/DxeMemEncryptSevLibInternal.c

Timestamp:

Mar 31, 2025 11:31:09 AM (2 weeks ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

168237

Message:

Devices/EFI/FirmwareNew: Merge edk2-stable202502 from the vendor branch and make it build for the important platforms, bugref:4643

Location:

trunk/src/VBox/Devices/EFI/FirmwareNew

Files:

• . (modified) (1 prop)
• OvmfPkg/Library/BaseMemEncryptSevLib/DxeMemEncryptSevLibInternal.c (modified) (3 diffs)

trunk/src/VBox/Devices/EFI/FirmwareNew/OvmfPkg/Library/BaseMemEncryptSevLib/DxeMemEncryptSevLibInternal.c

@@ -41 +41 @@
   )
 {
+  UINT64  CurrentLevel;
+
+  CurrentLevel = CurrentAttr & CCAttrTypeMask;
+
   switch (Attr) {
     case CCAttrAmdSev:
@@ -46 +50 @@
       // SEV is automatically enabled if SEV-ES or SEV-SNP is active.
       //
-      return CurrentAttr >= CCAttrAmdSev;
+      return CurrentLevel >= CCAttrAmdSev;
     case CCAttrAmdSevEs:
       //
       // SEV-ES is automatically enabled if SEV-SNP is active.
       //
-      return CurrentAttr >= CCAttrAmdSevEs;
+      return CurrentLevel >= CCAttrAmdSevEs;
     case CCAttrAmdSevSnp:
-      return CurrentAttr == CCAttrAmdSevSnp;
+      return CurrentLevel == CCAttrAmdSevSnp;
+    case CCAttrFeatureAmdSevEsDebugVirtualization:
+      return !!(CurrentAttr & CCAttrFeatureAmdSevEsDebugVirtualization);
     default:
       return FALSE;
@@ -160 +166 @@
   return mSevEncryptionMask;
 }
+
+/**
+  Returns a boolean to indicate whether DebugVirtualization is enabled.
+
+  @retval TRUE           DebugVirtualization is enabled
+  @retval FALSE          DebugVirtualization is not enabled
+**/
+BOOLEAN
+EFIAPI
+MemEncryptSevEsDebugVirtualizationIsEnabled (
+  VOID
+  )
+{
+  return ConfidentialComputingGuestHas (CCAttrFeatureAmdSevEsDebugVirtualization);
+}