OvmfPkg: add and use industry standard macro PIIX4_PMBA_MASK

[mirror_edk2.git] / OvmfPkg / Library / AcpiTimerLib / BaseRomAcpiTimerLib.c

diff --git a/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
index c46055a09b5200783f32b022f2422c47cc72140c..735dfd2e4bf90ff9e84e89002e9b99ed69ed48b5 100644 (file)
--- a/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
+++ b/OvmfPkg/Library/AcpiTimerLib/BaseRomAcpiTimerLib.c
@@ -68,7 +68,7 @@ AcpiTimerLibConstructor (
     // If the Power Management Base Address is not programmed,\r
     // then program it now.\r
     //\r
-    PciAndThenOr32 (Pmba, (UINT32) ~0xFFC0, PIIX4_PMBA_VALUE);\r
+    PciAndThenOr32 (Pmba, ~(UINT32)PIIX4_PMBA_MASK, PIIX4_PMBA_VALUE);\r
 \r
     //\r
     // Enable PMBA I/O port decodes\r