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From: "Dong, Eric" <eric.dong@intel.com>
To: devel@edk2.groups.io
Cc: "Dong, Eric" <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
	Laszlo Ersek <lersek@redhat.com>,
	Chandana Kumar <chandana.c.kumar@intel.com>,
	Star Zeng <star.zeng@intel.com>
Subject: [Patch v3 2/2] UefiCpuPkg/RegisterCpuFeaturesLib: avoid use dynamic PCD.
Date: Wed, 17 Jul 2019 09:59:00 +0800	[thread overview]
Message-ID: <20190717015900.29224-3-eric.dong@intel.com> (raw)
In-Reply-To: <20190717015900.29224-1-eric.dong@intel.com>

From: "Dong, Eric" <eric.dong@intel.com>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1972

Function in this library may be used by APs. Assert will be trig if AP
uses dynamic pcd.
This patch enhance the current code, remove the unnecessary usage of
dynamic PCD. This change try to avoid report this issue again later.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Chandana Kumar <chandana.c.kumar@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Eric Dong <eric.dong@intel.com>
---
 .../CpuFeaturesInitialize.c                   |  64 +++++------
 .../RegisterCpuFeatures.h                     |  10 +-
 .../RegisterCpuFeaturesLib.c                  | 107 +++++++-----------
 3 files changed, 79 insertions(+), 102 deletions(-)

diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
index 1e25ba8b32..33752c1a9f 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
@@ -15,20 +15,16 @@ CHAR16 *mRegisterTypeStr[] = {L"MSR", L"CR", L"MMIO", L"CACHE", L"SEMAP", L"INVA
   Worker function to save PcdCpuFeaturesCapability.
 
   @param[in]  SupportedFeatureMask  The pointer to CPU feature bits mask buffer
-  @param[in]  FeatureMaskSize       CPU feature bits mask buffer size.
+  @param[in]  BitMaskSize           CPU feature bits mask buffer size.
 
 **/
 VOID
 SetCapabilityPcd (
   IN UINT8               *SupportedFeatureMask,
-  IN UINT32              FeatureMaskSize
+  IN UINTN               BitMaskSize
   )
 {
   EFI_STATUS             Status;
-  UINTN                  BitMaskSize;
-
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesCapability);
-  ASSERT (FeatureMaskSize == BitMaskSize);
 
   Status = PcdSetPtrS (PcdCpuFeaturesCapability, &BitMaskSize, SupportedFeatureMask);
   ASSERT_EFI_ERROR (Status);
@@ -38,16 +34,16 @@ SetCapabilityPcd (
   Worker function to save PcdCpuFeaturesSetting.
 
   @param[in]  SupportedFeatureMask  The pointer to CPU feature bits mask buffer
+  @param[in]  BitMaskSize           CPU feature bits mask buffer size.
 **/
 VOID
 SetSettingPcd (
-  IN UINT8               *SupportedFeatureMask
+  IN UINT8               *SupportedFeatureMask,
+  IN UINTN               BitMaskSize
   )
 {
   EFI_STATUS             Status;
-  UINTN                  BitMaskSize;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
   Status = PcdSetPtrS (PcdCpuFeaturesSetting, &BitMaskSize, SupportedFeatureMask);
   ASSERT_EFI_ERROR (Status);
 }
@@ -272,19 +268,20 @@ SupportedMaskOr (
 
   @param[in]  SupportedFeatureMask  The pointer to CPU feature bits mask buffer
   @param[in]  AndFeatureBitMask     The feature bit mask to do AND operation
+  @param[in]  BitMaskSize           CPU feature bits mask buffer size.
+
 **/
 VOID
 SupportedMaskAnd (
   IN       UINT8               *SupportedFeatureMask,
-  IN CONST UINT8               *AndFeatureBitMask
+  IN CONST UINT8               *AndFeatureBitMask,
+  IN       UINT32              BitMaskSize
   )
 {
   UINTN                  Index;
-  UINTN                  BitMaskSize;
   UINT8                  *Data1;
   CONST UINT8            *Data2;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
   Data1 = SupportedFeatureMask;
   Data2 = AndFeatureBitMask;
   for (Index = 0; Index < BitMaskSize; Index++) {
@@ -297,19 +294,19 @@ SupportedMaskAnd (
 
   @param[in]  SupportedFeatureMask  The pointer to CPU feature bits mask buffer
   @param[in]  AndFeatureBitMask     The feature bit mask to do XOR operation
+  @param[in]  BitMaskSize           CPU feature bits mask buffer size.
 **/
 VOID
 SupportedMaskCleanBit (
   IN UINT8               *SupportedFeatureMask,
-  IN UINT8               *AndFeatureBitMask
+  IN UINT8               *AndFeatureBitMask,
+  IN UINT32              BitMaskSize
   )
 {
   UINTN                  Index;
-  UINTN                  BitMaskSize;
   UINT8                  *Data1;
   UINT8                  *Data2;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
   Data1 = SupportedFeatureMask;
   Data2 = AndFeatureBitMask;
   for (Index = 0; Index < BitMaskSize; Index++) {
@@ -323,6 +320,7 @@ SupportedMaskCleanBit (
 
   @param[in]  SupportedFeatureMask   The pointer to CPU feature bits mask buffer
   @param[in]  ComparedFeatureBitMask The feature bit mask to be compared
+  @param[in]  BitMaskSize            CPU feature bits mask buffer size.
 
   @retval TRUE   The ComparedFeatureBitMask is set in CPU feature supported bits
                  mask buffer.
@@ -332,16 +330,14 @@ SupportedMaskCleanBit (
 BOOLEAN
 IsBitMaskMatch (
   IN UINT8               *SupportedFeatureMask,
-  IN UINT8               *ComparedFeatureBitMask
+  IN UINT8               *ComparedFeatureBitMask,
+  IN UINT32              BitMaskSize
   )
 {
   UINTN                  Index;
-  UINTN                  BitMaskSize;
   UINT8                  *Data1;
   UINT8                  *Data2;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
-
   Data1 = SupportedFeatureMask;
   Data2 = ComparedFeatureBitMask;
   for (Index = 0; Index < BitMaskSize; Index++) {
@@ -557,14 +553,14 @@ AnalysisProcessorFeatures (
     //
     // Calculate the last capability on all processors
     //
-    SupportedMaskAnd (CpuFeaturesData->CapabilityPcd, CpuInitOrder->FeaturesSupportedMask);
+    SupportedMaskAnd (CpuFeaturesData->CapabilityPcd, CpuInitOrder->FeaturesSupportedMask, CpuFeaturesData->BitMaskSize);
   }
   //
   // Calculate the last setting
   //
   CpuFeaturesData->SettingPcd = AllocateCopyPool (CpuFeaturesData->BitMaskSize, CpuFeaturesData->CapabilityPcd);
   ASSERT (CpuFeaturesData->SettingPcd != NULL);
-  SupportedMaskAnd (CpuFeaturesData->SettingPcd, PcdGetPtr (PcdCpuFeaturesSetting));
+  SupportedMaskAnd (CpuFeaturesData->SettingPcd, PcdGetPtr (PcdCpuFeaturesSetting), CpuFeaturesData->BitMaskSize);
 
   //
   // Dump the last CPU feature list
@@ -574,8 +570,8 @@ AnalysisProcessorFeatures (
     Entry = GetFirstNode (&CpuFeaturesData->FeatureList);
     while (!IsNull (&CpuFeaturesData->FeatureList, Entry)) {
       CpuFeature = CPU_FEATURE_ENTRY_FROM_LINK (Entry);
-      if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->CapabilityPcd)) {
-        if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->SettingPcd)) {
+      if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->CapabilityPcd, CpuFeaturesData->BitMaskSize)) {
+        if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->SettingPcd, CpuFeaturesData->BitMaskSize)) {
           DEBUG ((DEBUG_INFO, "[Enable   ] "));
         } else {
           DEBUG ((DEBUG_INFO, "[Disable  ] "));
@@ -583,22 +579,22 @@ AnalysisProcessorFeatures (
       } else {
         DEBUG ((DEBUG_INFO, "[Unsupport] "));
       }
-      DumpCpuFeature (CpuFeature);
+      DumpCpuFeature (CpuFeature, CpuFeaturesData->BitMaskSize);
       Entry = Entry->ForwardLink;
     }
     DEBUG ((DEBUG_INFO, "PcdCpuFeaturesCapability:\n"));
-    DumpCpuFeatureMask (CpuFeaturesData->CapabilityPcd);
+    DumpCpuFeatureMask (CpuFeaturesData->CapabilityPcd, CpuFeaturesData->BitMaskSize);
     DEBUG ((DEBUG_INFO, "Origin PcdCpuFeaturesSetting:\n"));
-    DumpCpuFeatureMask (PcdGetPtr (PcdCpuFeaturesSetting));
+    DumpCpuFeatureMask (PcdGetPtr (PcdCpuFeaturesSetting), CpuFeaturesData->BitMaskSize);
     DEBUG ((DEBUG_INFO, "Final PcdCpuFeaturesSetting:\n"));
-    DumpCpuFeatureMask (CpuFeaturesData->SettingPcd);
+    DumpCpuFeatureMask (CpuFeaturesData->SettingPcd, CpuFeaturesData->BitMaskSize);
   );
 
   //
   // Save PCDs and display CPU PCDs
   //
   SetCapabilityPcd (CpuFeaturesData->CapabilityPcd, CpuFeaturesData->BitMaskSize);
-  SetSettingPcd (CpuFeaturesData->SettingPcd);
+  SetSettingPcd (CpuFeaturesData->SettingPcd, CpuFeaturesData->BitMaskSize);
 
   for (ProcessorNumber = 0; ProcessorNumber < NumberOfCpus; ProcessorNumber++) {
     CpuInitOrder = &CpuFeaturesData->InitOrder[ProcessorNumber];
@@ -608,7 +604,7 @@ AnalysisProcessorFeatures (
       // Insert each feature into processor's order list
       //
       CpuFeature = CPU_FEATURE_ENTRY_FROM_LINK (Entry);
-      if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->CapabilityPcd)) {
+      if (IsBitMaskMatch (CpuFeature->FeatureMask, CpuFeaturesData->CapabilityPcd, CpuFeaturesData->BitMaskSize)) {
         CpuFeatureInOrder = AllocateCopyPool (sizeof (CPU_FEATURES_ENTRY), CpuFeature);
         ASSERT (CpuFeatureInOrder != NULL);
         InsertTailList (&CpuInitOrder->OrderList, &CpuFeatureInOrder->Link);
@@ -624,18 +620,18 @@ AnalysisProcessorFeatures (
       CpuFeatureInOrder = CPU_FEATURE_ENTRY_FROM_LINK (Entry);
 
       Success = FALSE;
-      if (IsBitMaskMatch (CpuFeatureInOrder->FeatureMask, CpuFeaturesData->SettingPcd)) {
+      if (IsBitMaskMatch (CpuFeatureInOrder->FeatureMask, CpuFeaturesData->SettingPcd, CpuFeaturesData->BitMaskSize)) {
         Status = CpuFeatureInOrder->InitializeFunc (ProcessorNumber, CpuInfo, CpuFeatureInOrder->ConfigData, TRUE);
         if (EFI_ERROR (Status)) {
           //
           // Clean the CpuFeatureInOrder->FeatureMask in setting PCD.
           //
-          SupportedMaskCleanBit (CpuFeaturesData->SettingPcd, CpuFeatureInOrder->FeatureMask);
+          SupportedMaskCleanBit (CpuFeaturesData->SettingPcd, CpuFeatureInOrder->FeatureMask, CpuFeaturesData->BitMaskSize);
           if (CpuFeatureInOrder->FeatureName != NULL) {
             DEBUG ((DEBUG_WARN, "Warning :: Failed to enable Feature: Name = %a.\n", CpuFeatureInOrder->FeatureName));
           } else {
             DEBUG ((DEBUG_WARN, "Warning :: Failed to enable Feature: Mask = "));
-            DumpCpuFeatureMask (CpuFeatureInOrder->FeatureMask);
+            DumpCpuFeatureMask (CpuFeatureInOrder->FeatureMask, CpuFeaturesData->BitMaskSize);
           }
         } else {
           Success = TRUE;
@@ -647,7 +643,7 @@ AnalysisProcessorFeatures (
             DEBUG ((DEBUG_WARN, "Warning :: Failed to disable Feature: Name = %a.\n", CpuFeatureInOrder->FeatureName));
           } else {
             DEBUG ((DEBUG_WARN, "Warning :: Failed to disable Feature: Mask = "));
-            DumpCpuFeatureMask (CpuFeatureInOrder->FeatureMask);
+            DumpCpuFeatureMask (CpuFeatureInOrder->FeatureMask, CpuFeaturesData->BitMaskSize);
           }
         } else {
           Success = TRUE;
@@ -699,7 +695,7 @@ AnalysisProcessorFeatures (
     // again during initialize the features.
     //
     DEBUG ((DEBUG_INFO, "Dump final value for PcdCpuFeaturesSetting:\n"));
-    DumpCpuFeatureMask (CpuFeaturesData->SettingPcd);
+    DumpCpuFeatureMask (CpuFeaturesData->SettingPcd, CpuFeaturesData->BitMaskSize);
 
     //
     // Dump the RegisterTable
diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
index 5c546ee153..a18f926641 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeatures.h
@@ -180,20 +180,26 @@ SwitchNewBsp (
   Function that uses DEBUG() macros to display the contents of a a CPU feature bit mask.
 
   @param[in]  FeatureMask  A pointer to the CPU feature bit mask.
+  @param[in]  BitMaskSize  CPU feature bits mask buffer size.
+
 **/
 VOID
 DumpCpuFeatureMask (
-  IN UINT8               *FeatureMask
+  IN UINT8               *FeatureMask,
+  IN UINT32              BitMaskSize
   );
 
 /**
   Dump CPU feature name or CPU feature bit mask.
 
   @param[in]  CpuFeature   Pointer to CPU_FEATURES_ENTRY
+  @param[in]  BitMaskSize  CPU feature bits mask buffer size.
+
 **/
 VOID
 DumpCpuFeature (
-  IN CPU_FEATURES_ENTRY  *CpuFeature
+  IN CPU_FEATURES_ENTRY  *CpuFeature,
+  IN UINT32              BitMaskSize
   );
 
 /**
diff --git a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c
index 36aabd7267..493566de5d 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c
@@ -8,46 +8,22 @@
 
 #include "RegisterCpuFeatures.h"
 
-/**
-  Checks if two CPU feature bit masks are equal.
-
-  @param[in]  FirstFeatureMask  The first input CPU feature bit mask
-  @param[in]  SecondFeatureMask The second input CPU feature bit mask
-
-  @retval TRUE  Two CPU feature bit masks are equal.
-  @retval FALSE Two CPU feature bit masks are not equal.
-**/
-BOOLEAN
-IsCpuFeatureMatch (
-  IN UINT8               *FirstFeatureMask,
-  IN UINT8               *SecondFeatureMask
-  )
-{
-  UINTN                 BitMaskSize;
-
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
-  if (CompareMem (FirstFeatureMask, SecondFeatureMask, BitMaskSize) == 0) {
-    return TRUE;
-  } else {
-    return FALSE;
-  }
-}
-
 /**
   Function that uses DEBUG() macros to display the contents of a a CPU feature bit mask.
 
   @param[in]  FeatureMask  A pointer to the CPU feature bit mask.
+  @param[in]  BitMaskSize  CPU feature bits mask buffer size.
+
 **/
 VOID
 DumpCpuFeatureMask (
-  IN UINT8               *FeatureMask
+  IN UINT8               *FeatureMask,
+  IN UINT32              BitMaskSize
   )
 {
   UINTN                  Index;
   UINT8                  *Data8;
-  UINTN                  BitMaskSize;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
   Data8       = (UINT8 *) FeatureMask;
   for (Index = 0; Index < BitMaskSize; Index++) {
     DEBUG ((DEBUG_INFO, " %02x ", *Data8++));
@@ -59,10 +35,13 @@ DumpCpuFeatureMask (
   Dump CPU feature name or CPU feature bit mask.
 
   @param[in]  CpuFeature   Pointer to CPU_FEATURES_ENTRY
+  @param[in]  BitMaskSize  CPU feature bits mask buffer size.
+
 **/
 VOID
 DumpCpuFeature (
-  IN CPU_FEATURES_ENTRY  *CpuFeature
+  IN CPU_FEATURES_ENTRY  *CpuFeature,
+  IN UINT32              BitMaskSize
   )
 {
 
@@ -70,7 +49,7 @@ DumpCpuFeature (
     DEBUG ((DEBUG_INFO, "FeatureName: %a\n", CpuFeature->FeatureName));
   } else {
     DEBUG ((DEBUG_INFO, "FeatureMask = "));
-    DumpCpuFeatureMask (CpuFeature->FeatureMask);
+    DumpCpuFeatureMask (CpuFeature->FeatureMask, BitMaskSize);
   }
 }
 
@@ -89,16 +68,16 @@ IsBitMaskMatchCheck (
   IN UINT8        *DependentBitMask
   )
 {
-  UINTN      Index;
-  UINTN      BitMaskSize;
-  UINT8      *Data1;
-  UINT8      *Data2;
+  UINTN              Index;
+  UINT8              *Data1;
+  UINT8              *Data2;
+  CPU_FEATURES_DATA  *CpuFeaturesData;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
+  CpuFeaturesData = GetCpuFeaturesData ();
 
   Data1 = FeatureMask;
   Data2 = DependentBitMask;
-  for (Index = 0; Index < BitMaskSize; Index++) {
+  for (Index = 0; Index < CpuFeaturesData->BitMaskSize; Index++) {
     if (((*(Data1++)) & (*(Data2++))) != 0) {
       return TRUE;
     }
@@ -631,6 +610,7 @@ CheckCpuFeaturesDependency (
 /**
   Worker function to register CPU Feature.
 
+  @param[in]  CpuFeaturesData       Pointer to CPU feature data structure.
   @param[in]  CpuFeature            Pointer to CPU feature entry
 
   @retval  RETURN_SUCCESS           The CPU feature was successfully registered.
@@ -642,37 +622,21 @@ CheckCpuFeaturesDependency (
 **/
 RETURN_STATUS
 RegisterCpuFeatureWorker (
+  IN CPU_FEATURES_DATA       *CpuFeaturesData,
   IN CPU_FEATURES_ENTRY      *CpuFeature
   )
 {
   EFI_STATUS                 Status;
-  CPU_FEATURES_DATA          *CpuFeaturesData;
   CPU_FEATURES_ENTRY         *CpuFeatureEntry;
   LIST_ENTRY                 *Entry;
-  UINTN                      BitMaskSize;
   BOOLEAN                    FeatureExist;
 
-  BitMaskSize     = PcdGetSize (PcdCpuFeaturesSetting);
-  CpuFeaturesData = GetCpuFeaturesData ();
-  if (CpuFeaturesData->FeaturesCount == 0) {
-    InitializeListHead (&CpuFeaturesData->FeatureList);
-    InitializeSpinLock (&CpuFeaturesData->CpuFlags.MemoryMappedLock);
-    InitializeSpinLock (&CpuFeaturesData->CpuFlags.ConsoleLogLock);
-    //
-    // Driver has assumption that these three PCD should has same buffer size.
-    //
-    ASSERT (PcdGetSize (PcdCpuFeaturesSetting) == PcdGetSize (PcdCpuFeaturesCapability));
-    ASSERT (PcdGetSize (PcdCpuFeaturesSetting) == PcdGetSize (PcdCpuFeaturesSupport));
-    CpuFeaturesData->BitMaskSize = (UINT32) BitMaskSize;
-  }
-  ASSERT (CpuFeaturesData->BitMaskSize == BitMaskSize);
-
   FeatureExist = FALSE;
   CpuFeatureEntry = NULL;
   Entry = GetFirstNode (&CpuFeaturesData->FeatureList);
   while (!IsNull (&CpuFeaturesData->FeatureList, Entry)) {
     CpuFeatureEntry = CPU_FEATURE_ENTRY_FROM_LINK (Entry);
-    if (IsCpuFeatureMatch (CpuFeature->FeatureMask, CpuFeatureEntry->FeatureMask)) {
+    if (CompareMem (CpuFeature->FeatureMask, CpuFeatureEntry->FeatureMask, CpuFeaturesData->BitMaskSize) == 0) {
       //
       // If this feature already registered
       //
@@ -684,12 +648,12 @@ RegisterCpuFeatureWorker (
 
   if (!FeatureExist) {
     DEBUG ((DEBUG_INFO, "[NEW] "));
-    DumpCpuFeature (CpuFeature);
+    DumpCpuFeature (CpuFeature, CpuFeaturesData->BitMaskSize);
     InsertTailList (&CpuFeaturesData->FeatureList, &CpuFeature->Link);
     CpuFeaturesData->FeaturesCount++;
   } else {
     DEBUG ((DEBUG_INFO, "[OVERRIDE] "));
-    DumpCpuFeature (CpuFeature);
+    DumpCpuFeature (CpuFeature, CpuFeaturesData->BitMaskSize);
     ASSERT (CpuFeatureEntry != NULL);
     //
     // Overwrite original parameters of CPU feature
@@ -849,7 +813,6 @@ RegisterCpuFeature (
   EFI_STATUS                 Status;
   VA_LIST                    Marker;
   UINT32                     Feature;
-  UINTN                      BitMaskSize;
   CPU_FEATURES_ENTRY         *CpuFeature;
   UINT8                      *FeatureMask;
   UINT8                      *BeforeFeatureBitMask;
@@ -860,6 +823,7 @@ RegisterCpuFeature (
   UINT8                      *PackageAfterFeatureBitMask;
   BOOLEAN                    BeforeAll;
   BOOLEAN                    AfterAll;
+  CPU_FEATURES_DATA          *CpuFeaturesData;
 
   FeatureMask                 = NULL;
   BeforeFeatureBitMask        = NULL;
@@ -871,7 +835,18 @@ RegisterCpuFeature (
   BeforeAll            = FALSE;
   AfterAll             = FALSE;
 
-  BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
+  CpuFeaturesData = GetCpuFeaturesData ();
+  if (CpuFeaturesData->FeaturesCount == 0) {
+    InitializeListHead (&CpuFeaturesData->FeatureList);
+    InitializeSpinLock (&CpuFeaturesData->CpuFlags.MemoryMappedLock);
+    InitializeSpinLock (&CpuFeaturesData->CpuFlags.ConsoleLogLock);
+    //
+    // Code assumes below three PCDs have PCD same buffer size.
+    //
+    ASSERT (PcdGetSize (PcdCpuFeaturesSetting) == PcdGetSize (PcdCpuFeaturesCapability));
+    ASSERT (PcdGetSize (PcdCpuFeaturesSetting) == PcdGetSize (PcdCpuFeaturesSupport));
+    CpuFeaturesData->BitMaskSize = (UINT32) PcdGetSize (PcdCpuFeaturesSetting);
+  }
 
   VA_START (Marker, InitializeFunc);
   Feature = VA_ARG (Marker, UINT32);
@@ -889,19 +864,19 @@ RegisterCpuFeature (
       AfterAll  = ((Feature & CPU_FEATURE_AFTER_ALL) != 0) ? TRUE : FALSE;
       Feature  &= ~(CPU_FEATURE_BEFORE_ALL | CPU_FEATURE_AFTER_ALL);
       ASSERT (FeatureMask == NULL);
-      SetCpuFeaturesBitMask (&FeatureMask, Feature, BitMaskSize);
+      SetCpuFeaturesBitMask (&FeatureMask, Feature, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_BEFORE) != 0) {
-      SetCpuFeaturesBitMask (&BeforeFeatureBitMask, Feature & ~CPU_FEATURE_BEFORE, BitMaskSize);
+      SetCpuFeaturesBitMask (&BeforeFeatureBitMask, Feature & ~CPU_FEATURE_BEFORE, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_AFTER) != 0) {
-      SetCpuFeaturesBitMask (&AfterFeatureBitMask, Feature & ~CPU_FEATURE_AFTER, BitMaskSize);
+      SetCpuFeaturesBitMask (&AfterFeatureBitMask, Feature & ~CPU_FEATURE_AFTER, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_CORE_BEFORE) != 0) {
-      SetCpuFeaturesBitMask (&CoreBeforeFeatureBitMask, Feature & ~CPU_FEATURE_CORE_BEFORE, BitMaskSize);
+      SetCpuFeaturesBitMask (&CoreBeforeFeatureBitMask, Feature & ~CPU_FEATURE_CORE_BEFORE, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_CORE_AFTER) != 0) {
-      SetCpuFeaturesBitMask (&CoreAfterFeatureBitMask, Feature & ~CPU_FEATURE_CORE_AFTER, BitMaskSize);
+      SetCpuFeaturesBitMask (&CoreAfterFeatureBitMask, Feature & ~CPU_FEATURE_CORE_AFTER, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_PACKAGE_BEFORE) != 0) {
-      SetCpuFeaturesBitMask (&PackageBeforeFeatureBitMask, Feature & ~CPU_FEATURE_PACKAGE_BEFORE, BitMaskSize);
+      SetCpuFeaturesBitMask (&PackageBeforeFeatureBitMask, Feature & ~CPU_FEATURE_PACKAGE_BEFORE, CpuFeaturesData->BitMaskSize);
     } else if ((Feature & CPU_FEATURE_PACKAGE_AFTER) != 0) {
-      SetCpuFeaturesBitMask (&PackageAfterFeatureBitMask, Feature & ~CPU_FEATURE_PACKAGE_AFTER, BitMaskSize);
+      SetCpuFeaturesBitMask (&PackageAfterFeatureBitMask, Feature & ~CPU_FEATURE_PACKAGE_AFTER, CpuFeaturesData->BitMaskSize);
     }
     Feature = VA_ARG (Marker, UINT32);
   }
@@ -929,7 +904,7 @@ RegisterCpuFeature (
     ASSERT_EFI_ERROR (Status);
   }
 
-  Status = RegisterCpuFeatureWorker (CpuFeature);
+  Status = RegisterCpuFeatureWorker (CpuFeaturesData, CpuFeature);
   ASSERT_EFI_ERROR (Status);
 
   return RETURN_SUCCESS;
-- 
2.21.0.windows.1


  parent reply	other threads:[~2019-07-17  1:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-17  1:58 [Patch v3 0/2] UefiCpuPkg/RegisterCpuFeaturesLib: Avoid AP calls PeiServices table Dong, Eric
2019-07-17  1:58 ` [Patch v3 1/2] " Dong, Eric
2019-07-17  1:59 ` Dong, Eric [this message]
2019-07-17  3:40   ` [Patch v3 2/2] UefiCpuPkg/RegisterCpuFeaturesLib: avoid use dynamic PCD Zeng, Star
2019-07-17  3:57     ` Ni, Ray

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