From 30781febe2106cc0d7186e70136120353cd67df2 Mon Sep 17 00:00:00 2001
From: Donald Kuo <donald.kuo@intel.com>
Date: Mon, 12 Aug 2019 12:34:39 +0800
Subject: UefiCpuPkg: Adding a new TSC library by using CPUID(0x15) TSC leaf

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1909

Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Amy Chan <amy.chan@intel.com>
Cc: Rangasai V Chaganty <rangasai.v.chaganty@intel.com>
Signed-off-by: Donald Kuo <donald.kuo@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
---
 UefiCpuPkg/UefiCpuPkg.uni | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'UefiCpuPkg/UefiCpuPkg.uni')

diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni
index 80af4fc1d2..fbf7680726 100644
--- a/UefiCpuPkg/UefiCpuPkg.uni
+++ b/UefiCpuPkg/UefiCpuPkg.uni
@@ -242,3 +242,13 @@
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuKnownGoodStackSize_HELP  #language en-US "Size of good stack for an exception.\n"
                                                                                      "This PCD will only take into effect if PcdCpuStackGuard is enabled.\n"
 
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuCoreCrystalClockFrequency_PROMPT  #language en-US "Specifies CPUID Leaf 0x15 Time Stamp Counter and Nominal Core Crystal Clock Frequency."
+
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuCoreCrystalClockFrequency_HELP  #language en-US "Specifies CPUID Leaf 0x15 Time Stamp Counter and Nominal Core Crystal Clock Frequency.<BR><BR>\n"
+                                                                                            "TSC Frequency = ECX (core crystal clock frequency) * EBX/EAX.<BR><BR>\n"
+                                                                                            "This PCD is the nominal frequency of the core crystal clock in Hz as is CPUID Leaf 0x15:ECX.<BR><BR>\n"
+                                                                                            "Default value is 24000000 for 6th and 7th generation Intel Core processors and Intel Xeon W Processor Family.<BR>\n"
+                                                                                            "25000000  -  Intel Xeon Processor Scalable Family with CPUID signature 06_55H(25MHz).<BR>\n"
+                                                                                            "24000000  -  6th and 7th generation Intel Core processors and Intel Xeon W Processor Family(24MHz).<BR>\n"
+                                                                                            "19200000  -  Intel Atom processors based on Goldmont Microarchitecture with CPUID signature 06_5CH(19.2MHz).<BR>\n"
+
-- 
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