1 files changed, 8 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
index aadda4b58..e52477784 100644
--- a/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
+++ b/MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
@@ -2247,6 +2247,14 @@ VariableCommonInitialize (
   EfiInitializeLock(&mVariableModuleGlobal->VariableGlobal.VariableServicesLock, TPL_NOTIFY);
 
   //
+  // Note that in EdkII variable driver implementation, Hardware Error Record type variable
+  // is stored with common variable in the same NV region. So the platform integrator should
+  // ensure that the value of PcdHwErrStorageSize is less than or equal to the value of 
+  // PcdFlashNvStorageVariableSize.
+  //
+  ASSERT (FixedPcdGet32(PcdHwErrStorageSize) <= FixedPcdGet32(PcdFlashNvStorageVariableSize));
+
+  //
   // Allocate memory for volatile variable store, note that there is a scratch space to store scratch data.
   //
   ScratchSize = MAX(FixedPcdGet32(PcdMaxVariableSize), FixedPcdGet32(PcdMaxHardwareErrorVariableSize));