AmpereAltraPkg/FlashPei: Erase user setting NVPARAM when UUID changed

Both the NVRAM and NVPARAM should be expected to be clear to prevent unbehavior issues when switching between UEFI firmware versions. Also, a reboot is required after clearing the user setting. Signed-off-by: Nhi Pham <[email protected]>
hsuc1x · Oct 11, 2024 · 8f6b77e · 8f6b77e
1 parent 698288f
commit 8f6b77e
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/Silicon/Ampere/AmpereAltraPkg/Drivers/FlashPei/FlashPei.c b/Silicon/Ampere/AmpereAltraPkg/Drivers/FlashPei/FlashPei.c
@@ -18,6 +18,7 @@
 #include <Library/NVParamLib.h>
 #include <Library/PcdLib.h>
 #include <Library/PeimEntryPoint.h>
+#include <Library/ResetSystemLib.h>
 #include <IndustryStandard/Ipmi.h>
 
 /**
@@ -190,6 +191,14 @@ FlashPeiEntryPoint (
     if (EFI_ERROR (Status)) {
       return Status;
     }
+
+    Status = NVParamClrAll ();
+    if (!EFI_ERROR (Status)) {
+      //
+      // Trigger reset to use default NVPARAM
+      //
+      ResetCold ();
+    }
   } else {
     DEBUG ((DEBUG_INFO, "Identical UUID, copy stored NVRAM to RAM\n"));