OvmfPkg/PlatformPei: eliminate unchecked PcdSetXX() calls

These are deprecated / disabled under the
DISABLE_NEW_DEPRECATED_INTERFACES feature test macro.

Introduce a variable called PcdStatus, and use it to assert the success of
these operations (there is no reason for them to fail here).

Cc: Anthony PERARD <anthony.perard@citrix.com>
Cc: Gary Lin <glin@suse.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=166
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Gary Lin <glin@suse.com>
Tested-by: Gary Lin <glin@suse.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

OvmfPkg/PlatformPei/MemDetect.c

@@ -107,6 +107,7 @@ GetFirstNonAddress (
   FIRMWARE_CONFIG_ITEM FwCfgItem;
   UINTN                FwCfgSize;
   UINT64               HotPlugMemoryEnd;
+  RETURN_STATUS        PcdStatus;
 
   FirstNonAddress = BASE_4GB + GetSystemMemorySizeAbove4gb ();
 
@@ -154,7 +155,8 @@ GetFirstNonAddress (
     if (mBootMode != BOOT_ON_S3_RESUME) {
       DEBUG ((EFI_D_INFO, "%a: disabling 64-bit PCI host aperture\n",
         __FUNCTION__));
-      PcdSet64 (PcdPciMmio64Size, 0);
+      PcdStatus = PcdSet64S (PcdPciMmio64Size, 0);
+      ASSERT_RETURN_ERROR (PcdStatus);
     }
 
     //
@@ -202,8 +204,11 @@ GetFirstNonAddress (
     // the GCD memory space map through our PciHostBridgeLib instance; here we
     // only need to set the PCDs.
     //
-    PcdSet64 (PcdPciMmio64Base, Pci64Base);
+    PcdStatus = PcdSet64S (PcdPciMmio64Base, Pci64Base);
-    PcdSet64 (PcdPciMmio64Size, Pci64Size);
+    ASSERT_RETURN_ERROR (PcdStatus);
+    PcdStatus = PcdSet64S (PcdPciMmio64Size, Pci64Size);
+    ASSERT_RETURN_ERROR (PcdStatus);
+
     DEBUG ((EFI_D_INFO, "%a: Pci64Base=0x%Lx Pci64Size=0x%Lx\n",
       __FUNCTION__, Pci64Base, Pci64Size));
   }

OvmfPkg/PlatformPei/Platform.c

@@ -158,6 +158,7 @@ MemMapInitialization (
 {
   UINT64        PciIoBase;
   UINT64        PciIoSize;
+  RETURN_STATUS PcdStatus;
 
   PciIoBase = 0xC000;
   PciIoSize = 0x4000;
@@ -212,8 +213,11 @@ MemMapInitialization (
     //
     PciSize = 0xFC000000 - PciBase;
     AddIoMemoryBaseSizeHob (PciBase, PciSize);
-    PcdSet64 (PcdPciMmio32Base, PciBase);
+    PcdStatus = PcdSet64S (PcdPciMmio32Base, PciBase);
-    PcdSet64 (PcdPciMmio32Size, PciSize);
+    ASSERT_RETURN_ERROR (PcdStatus);
+    PcdStatus = PcdSet64S (PcdPciMmio32Size, PciSize);
+    ASSERT_RETURN_ERROR (PcdStatus);
+
     AddIoMemoryBaseSizeHob (0xFEC00000, SIZE_4KB);
     AddIoMemoryBaseSizeHob (0xFED00000, SIZE_1KB);
     if (mHostBridgeDevId == INTEL_Q35_MCH_DEVICE_ID) {
@@ -266,8 +270,10 @@ MemMapInitialization (
     PciIoBase,
     PciIoSize
     );
-  PcdSet64 (PcdPciIoBase, PciIoBase);
+  PcdStatus = PcdSet64S (PcdPciIoBase, PciIoBase);
-  PcdSet64 (PcdPciIoSize, PciIoSize);
+  ASSERT_RETURN_ERROR (PcdStatus);
+  PcdStatus = PcdSet64S (PcdPciIoSize, PciIoSize);
+  ASSERT_RETURN_ERROR (PcdStatus);
 }
 
 EFI_STATUS
@@ -317,10 +323,12 @@ GetNamedFwCfgBoolean (
 #define UPDATE_BOOLEAN_PCD_FROM_FW_CFG(TokenName)                   \
           do {                                                      \
             BOOLEAN       Setting;                                  \
+            RETURN_STATUS PcdStatus;                                \
                                                                     \
             if (!EFI_ERROR (GetNamedFwCfgBoolean (                  \
                               "opt/ovmf/" #TokenName, &Setting))) { \
-              PcdSetBool (TokenName, Setting);                      \
+              PcdStatus = PcdSetBoolS (TokenName, Setting);         \
+              ASSERT_RETURN_ERROR (PcdStatus);                      \
             }                                                       \
           } while (0)
 
@@ -385,6 +393,7 @@ MiscInitialization (
   UINT32        PmbaOrVal;
   UINTN         AcpiCtlReg;
   UINT8         AcpiEnBit;
+  RETURN_STATUS PcdStatus;
 
   //
   // Disable A20 Mask
@@ -424,7 +433,8 @@ MiscInitialization (
       ASSERT (FALSE);
       return;
   }
-  PcdSet16 (PcdOvmfHostBridgePciDevId, mHostBridgeDevId);
+  PcdStatus = PcdSet16S (PcdOvmfHostBridgePciDevId, mHostBridgeDevId);
+  ASSERT_RETURN_ERROR (PcdStatus);
 
   //
   // If the appropriate IOspace enable bit is set, assume the ACPI PMBA
@@ -491,6 +501,7 @@ ReserveEmuVariableNvStore (
   )
 {
   EFI_PHYSICAL_ADDRESS VariableStore;
+  RETURN_STATUS        PcdStatus;
 
   //
   // Allocate storage for NV variables early on so it will be
@@ -509,7 +520,8 @@ ReserveEmuVariableNvStore (
           VariableStore,
           (2 * PcdGet32 (PcdFlashNvStorageFtwSpareSize)) / 1024
         ));
-  PcdSet64 (PcdEmuVariableNvStoreReserved, VariableStore);
+  PcdStatus = PcdSet64S (PcdEmuVariableNvStoreReserved, VariableStore);
+  ASSERT_RETURN_ERROR (PcdStatus);
 }
 
 

OvmfPkg/PlatformPei/Xen.c

@@ -210,6 +210,8 @@ InitializeXen (
   VOID
   )
 {
+  RETURN_STATUS PcdStatus;
+
   if (mXenLeaf == 0) {
     return EFI_NOT_FOUND;
   }
@@ -222,7 +224,8 @@ InitializeXen (
   //
   AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000, FALSE);
 
-  PcdSetBool (PcdPciDisableBusEnumeration, TRUE);
+  PcdStatus = PcdSetBoolS (PcdPciDisableBusEnumeration, TRUE);
+  ASSERT_RETURN_ERROR (PcdStatus);
 
   return EFI_SUCCESS;
 }