[edk2-devel] [Patch 2/2] UefiCpuPkg/Library/RegisterCpuFeaturesLib: avoid use dynamic PCD.
Zeng, Star
star.zeng at intel.com
Fri Jul 12 11:10:54 UTC 2019
4 comments are added inline.
> -----Original Message-----
> From: devel at edk2.groups.io [mailto:devel at edk2.groups.io] On Behalf Of
> Dong, Eric
> Sent: Friday, July 12, 2019 9:53 AM
> To: devel at edk2.groups.io
> Cc: Ni, Ray <ray.ni at intel.com>; Laszlo Ersek <lersek at redhat.com>; Kumar,
> Chandana C <chandana.c.kumar at intel.com>; Zeng, Star
> <star.zeng at intel.com>
> Subject: [edk2-devel] [Patch 2/2]
> UefiCpuPkg/Library/RegisterCpuFeaturesLib: avoid use dynamic PCD.
>
> 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 at intel.com>
> Cc: Laszlo Ersek <lersek at redhat.com>
> Cc: Chandana Kumar <chandana.c.kumar at intel.com>
> Cc: Star Zeng <star.zeng at intel.com>
> Signed-off-by: Eric Dong <eric.dong at intel.com>
> ---
> .../CpuFeaturesInitialize.c | 64 +++++-----
> .../RegisterCpuFeatures.h | 10 +-
> .../RegisterCpuFeaturesLib.c | 114 ++++++------------
> 3 files changed, 77 insertions(+), 111 deletions(-)
>
> diff --git
> a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> index 87bfc64250..16b99c0c27 100644
> --- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> +++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/CpuFeaturesInitialize.c
> @@ -21,16 +21,12 @@ CHAR16 *mRegisterTypeStr[] = {L"MSR", L"CR",
> L"MMIO", L"CACHE", L"SEMAP", L"INVA VOID SetCapabilityPcd (
> IN UINT8 *SupportedFeatureMask,
> - IN UINT32 FeatureMaskSize
> + IN UINTN FeatureMaskSize
1. How about using BitMaskSize to be aligned with other places? Notice, the function header also needs to be updated if using BitMaskSize.
> )
> {
> EFI_STATUS Status;
> - UINTN BitMaskSize;
>
> - BitMaskSize = PcdGetSize (PcdCpuFeaturesCapability);
> - ASSERT (FeatureMaskSize == BitMaskSize);
> -
> - Status = PcdSetPtrS (PcdCpuFeaturesCapability, &BitMaskSize,
> SupportedFeatureMask);
> + Status = PcdSetPtrS (PcdCpuFeaturesCapability, &FeatureMaskSize,
> + 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] FeatureMaskSize CPU feature bits mask buffer size.
2. Need use BitMaskSize to be matched with function parameter name.
> **/
> 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..283e9d6539 100644
> --- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c
> +++
> b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/RegisterCpuFeaturesLib.c
> @@ -18,36 +18,34 @@
> @retval FALSE Two CPU feature bit masks are not equal.
> **/
> BOOLEAN
> -IsCpuFeatureMatch (
> +IsBitMaskMatchCheck (
3. Seemingly, original IsCpuFeatureMatch() and IsBitMaskMatchCheck() have different purpose. How they can be merged? Please double confirm that.
And even, they can be merged, it will be better to do that in a separated patch.
> IN UINT8 *FirstFeatureMask,
> IN UINT8 *SecondFeatureMask
> )
> {
> - UINTN BitMaskSize;
> + CPU_FEATURES_DATA *CpuFeaturesData;
>
> - BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
> - if (CompareMem (FirstFeatureMask, SecondFeatureMask, BitMaskSize) ==
> 0) {
> - return TRUE;
> - } else {
> - return FALSE;
> - }
> + CpuFeaturesData = GetCpuFeaturesData ();
> +
> + return (CompareMem (FirstFeatureMask, SecondFeatureMask,
> + CpuFeaturesData->BitMaskSize) == 0);
> }
>
> /**
> 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 +57,13 @@
> 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
> )
> {
>
> @@ -70,42 +71,10 @@ DumpCpuFeature (
> DEBUG ((DEBUG_INFO, "FeatureName: %a\n", CpuFeature-
> >FeatureName));
> } else {
> DEBUG ((DEBUG_INFO, "FeatureMask = "));
> - DumpCpuFeatureMask (CpuFeature->FeatureMask);
> + DumpCpuFeatureMask (CpuFeature->FeatureMask, BitMaskSize);
> }
> }
>
> -/**
> - Determines if the feature bit mask is in dependent CPU feature bit mask
> buffer.
> -
> - @param[in] FeatureMask Pointer to CPU feature bit mask
> - @param[in] DependentBitMask Pointer to dependent CPU feature bit
> mask buffer
> -
> - @retval TRUE The feature bit mask is in dependent CPU feature bit mask
> buffer.
> - @retval FALSE The feature bit mask is not in dependent CPU feature bit
> mask buffer.
> -**/
> -BOOLEAN
> -IsBitMaskMatchCheck (
> - IN UINT8 *FeatureMask,
> - IN UINT8 *DependentBitMask
> - )
> -{
> - UINTN Index;
> - UINTN BitMaskSize;
> - UINT8 *Data1;
> - UINT8 *Data2;
> -
> - BitMaskSize = PcdGetSize (PcdCpuFeaturesSetting);
> -
> - Data1 = FeatureMask;
> - Data2 = DependentBitMask;
> - for (Index = 0; Index < BitMaskSize; Index++) {
> - if (((*(Data1++)) & (*(Data2++))) != 0) {
> - return TRUE;
> - }
> - }
> - return FALSE;
> -}
> -
> /**
> Try to find the specify cpu featuren in former/after feature list.
>
> @@ -642,37 +611,21 @@ CheckCpuFeaturesDependency ( **/
> RETURN_STATUS RegisterCpuFeatureWorker (
> + IN CPU_FEATURES_DATA *CpuFeaturesData,
4. New parameter is added, so the function header will need to be updated.
Thanks,
Star
> 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 (IsBitMaskMatchCheck (CpuFeature->FeatureMask,
> + CpuFeatureEntry->FeatureMask)) {
> //
> // If this feature already registered
> //
> @@ -684,12 +637,12 @@ 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 +802,6 @@
> RegisterCpuFeature (
> EFI_STATUS Status;
> VA_LIST Marker;
> UINT32 Feature;
> - UINTN BitMaskSize;
> CPU_FEATURES_ENTRY *CpuFeature;
> UINT8 *FeatureMask;
> UINT8 *BeforeFeatureBitMask;
> @@ -860,6 +812,7 @@ RegisterCpuFeature (
> UINT8 *PackageAfterFeatureBitMask;
> BOOLEAN BeforeAll;
> BOOLEAN AfterAll;
> + CPU_FEATURES_DATA *CpuFeaturesData;
>
> FeatureMask = NULL;
> BeforeFeatureBitMask = NULL;
> @@ -871,7 +824,18 @@ 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);
> + //
> + // Driver has assumption that below three PCDs should has 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 +853,19 @@ 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 +893,7 @@ RegisterCpuFeature (
> ASSERT_EFI_ERROR (Status);
> }
>
> - Status = RegisterCpuFeatureWorker (CpuFeature);
> + Status = RegisterCpuFeatureWorker (CpuFeaturesData, CpuFeature);
> ASSERT_EFI_ERROR (Status);
>
> return RETURN_SUCCESS;
> --
> 2.21.0.windows.1
>
>
>
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