diff options
-rw-r--r-- | UefiPayloadPkg/UefiPayloadPkg.dsc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc index 3d08edfe31..65c1bd610e 100644 --- a/UefiPayloadPkg/UefiPayloadPkg.dsc +++ b/UefiPayloadPkg/UefiPayloadPkg.dsc @@ -111,6 +111,11 @@ DEFINE SERIAL_DRIVER_ENABLE = TRUE
DEFINE PERFORMANCE_MEASUREMENT_ENABLE = FALSE
+ # For recent X86 CPU, 0x15 CPUID instruction will return Time Stamp Counter.
+ # This is recommended way to get the time, and also how BaseCpuTimerLib works.
+ # However, some CPU doesn't support this feature, so disable it by default.
+ DEFINE CPU_TIMER_LIB_ENABLE = FALSE
+
[BuildOptions]
*_*_*_CC_FLAGS = -D DISABLE_NEW_DEPRECATED_INTERFACES
GCC:*_UNIXGCC_*_CC_FLAGS = -DMDEPKG_NDEBUG
@@ -217,7 +222,7 @@ #
# Platform
#
-!if $(UNIVERSAL_PAYLOAD) == TRUE
+!if $(CPU_TIMER_LIB_ENABLE) == TRUE
TimerLib|UefiCpuPkg/Library/CpuTimerLib/BaseCpuTimerLib.inf
!else
TimerLib|UefiPayloadPkg/Library/AcpiTimerLib/AcpiTimerLib.inf
|