OvmfPkg: add and use industry standard macro PIIX4_PMBA_MASK

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

diff --git a/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c b/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
index 109b267cf4aab1153cc1af1dd3ba9306da4e12ed..652545d8647e5e8d8c0fd702a910a51f5575f302 100644 (file)
--- a/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
+++ b/OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.c
@@ -70,7 +70,7 @@ 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