SecurityPkg: Refine type cast for pointer subtraction

[mirror_edk2.git] / OvmfPkg / SmmControl2Dxe / SmiFeatures.c

diff --git a/OvmfPkg/SmmControl2Dxe/SmiFeatures.c b/OvmfPkg/SmmControl2Dxe/SmiFeatures.c
index 73c29848b334f1f9b0daa23de97f8a2b06b71eff..bd257f15d955f5e72f2b53d6dfbb4c89bd72d5d0 100644 (file)
--- a/OvmfPkg/SmmControl2Dxe/SmiFeatures.c
+++ b/OvmfPkg/SmmControl2Dxe/SmiFeatures.c
@@ -240,7 +240,7 @@ SaveSmiFeatures (
                           S3SaveState,                     // This\r
                           EFI_BOOT_SCRIPT_IO_WRITE_OPCODE, // OpCode\r
                           EfiBootScriptWidthUint32,        // Width\r
-                          (UINT64)0x514,                   // Address\r
+                          (UINT64)FW_CFG_IO_DMA_ADDRESS,   // Address\r
                           (UINTN)2,                        // Count\r
                           &AccessAddress                   // Buffer\r
                           );\r