+[Includes]\r
+ Include\r
+\r
+[LibraryClasses]\r
+ ## @libraryclass Provides functions to manage I/O APIC Redirection Table Entries.\r
+ #\r
+ IoApicLib|Include/Library/IoApicLib.h\r
+ \r
+[Guids]\r
+ gPcAtChipsetPkgTokenSpaceGuid = { 0x326ae723, 0xae32, 0x4589, { 0x98, 0xb8, 0xca, 0xc2, 0x3c, 0xdc, 0xc1, 0xb1 } }\r
+\r
+[PcdsFeatureFlag]\r
+ ## If TRUE, then the HPET Timer will be configured to use MSI interrupts if the HPET timer supports them.\r
+ # If FALSE, then the HPET Timer will be configued to use I/O APIC interrupts.\r
+ gPcAtChipsetPkgTokenSpaceGuid.PcdHpetMsiEnable|TRUE|BOOLEAN|0x00001000\r
+ \r