MdeModulePkg PeiCore: Improve comment semantics

This patch clarifies wording in several PeiCore comments to improve
reading comprehension.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>

MdeModulePkg/Core/Pei/Dependency/Dependency.c

@@ -2,8 +2,8 @@
   PEI Dispatcher Dependency Evaluator
 
   This routine evaluates a dependency expression (DEPENDENCY_EXPRESSION) to determine
-  if a driver can be scheduled for execution.  The criteria for
+  if a driver can be scheduled for execution.  The criteria to be scheduled is
-  schedulability is that the dependency expression is satisfied.
+  that the dependency expression is satisfied.
 
 Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent

MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c

@@ -1347,8 +1347,8 @@ DepexSatisfied (
 }
 
 /**
-  This routine enable a PEIM to register itself to shadow when PEI Foundation
+  This routine enables a PEIM to register itself for shadow when the PEI Foundation
-  discovery permanent memory.
+  discovers permanent memory.
 
   @param FileHandle             File handle of a PEIM.
 

MdeModulePkg/Core/Pei/FwVol/FwVol.c

@@ -593,7 +593,7 @@ FirmwareVolumeInfoPpiNotifyCallback (
   }
 
   //
-  // Locate the corresponding FV_PPI according to founded FV's format GUID
+  // Locate the corresponding FV_PPI according to the format GUID of the FV found
   //
   Status = PeiServicesLocatePpi (
              &FvInfo2Ppi.FvFormat,
@@ -1533,7 +1533,7 @@ ProcessFvFile (
       );
 
     //
-    // Inform the extracted FvImage to FV HOB consumer phase, i.e. DXE phase
+    // Expose the extracted FvImage to the FV HOB consumer phase, i.e. DXE phase
     //
     BuildFvHob (
       (EFI_PHYSICAL_ADDRESS) (UINTN) FvHeader,
@@ -2087,12 +2087,13 @@ FvHandleToCoreHandle (
 }
 
 /**
-  Get instance of PEI_CORE_FV_HANDLE for next volume according to given index.
+  Gets a PEI_CORE_FV_HANDLE instance for the next volume according to the given index.
 
-  This routine also will install FvInfo PPI for FV HOB in PI ways.
+  This routine also will install an instance of the FvInfo PPI for the FV HOB
+  as defined in the PI specification.
 
   @param Private    Pointer of PEI_CORE_INSTANCE
-  @param Instance   The index of FV want to be searched.
+  @param Instance   Index of the FV to search
 
   @return Instance of PEI_CORE_FV_HANDLE.
 **/
@@ -2185,13 +2186,14 @@ PeiReinitializeFv (
 }
 
 /**
-  Report the information for a new discovered FV in unknown third-party format.
+  Report the information for a newly discovered FV in an unknown format.
 
-  If the EFI_PEI_FIRMWARE_VOLUME_PPI has not been installed for third-party FV format, but
+  If the EFI_PEI_FIRMWARE_VOLUME_PPI has not been installed for a third-party FV format, but
-  the FV in this format has been discovered, then this FV's information will be cached into
+  the FV has been discovered, then the information of this FV will be cached into PEI_CORE_INSTANCE's
-  PEI_CORE_INSTANCE's UnknownFvInfo array.
+  UnknownFvInfo array.
-  Also a notification would be installed for unknown third-party FV format guid, if EFI_PEI_FIRMWARE_VOLUME_PPI
+
-  is installed later by platform's PEIM, the original unknown third-party FV will be processed by
+  Also a notification would be installed for unknown FV format GUID, if EFI_PEI_FIRMWARE_VOLUME_PPI
+  is installed later by platform's PEIM, the original unknown FV will be processed by
   using new installed EFI_PEI_FIRMWARE_VOLUME_PPI.
 
   @param PrivateData  Point to instance of PEI_CORE_INSTANCE

MdeModulePkg/Core/Pei/FwVol/FwVol.h

@@ -303,11 +303,12 @@ FindFileEx (
   );
 
 /**
-  Report the information for a new discovered FV in unknown format.
+  Report the information for a newly discovered FV in an unknown format.
+
+  If the EFI_PEI_FIRMWARE_VOLUME_PPI has not been installed for a third-party FV format, but
+  the FV has been discovered, then the information of this FV will be cached into PEI_CORE_INSTANCE's
+  UnknownFvInfo array.
 
-  If the EFI_PEI_FIRMWARE_VOLUME_PPI has not been installed for specific FV format, but
-  the FV in this FV format has been discovered, then the information of this FV
-  will be cached into PEI_CORE_INSTANCE's UnknownFvInfo array.
   Also a notification would be installed for unknown FV format GUID, if EFI_PEI_FIRMWARE_VOLUME_PPI
   is installed later by platform's PEIM, the original unknown FV will be processed by
   using new installed EFI_PEI_FIRMWARE_VOLUME_PPI.

MdeModulePkg/Core/Pei/Memory/MemoryServices.c

@@ -759,8 +759,8 @@ PeiFreePages (
 /**
 
   Pool allocation service. Before permanent memory is discovered, the pool will
-  be allocated the heap in the temporary memory. Generally, the size of heap in temporary
+  be allocated in the heap in temporary memory. Generally, the size of the heap in temporary
-  memory does not exceed to 64K, so the biggest pool size could be allocated is
+  memory does not exceed 64K, so the biggest pool size could be allocated is
   64K.
 
   @param PeiServices               An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@@ -789,7 +789,7 @@ PeiAllocatePool (
   //
 
   //
-  // Generally, the size of heap in temporary memory does not exceed to 64K,
+  // Generally, the size of heap in temporary memory does not exceed 64K,
   // HobLength is multiples of 8 bytes, so the maximum size of pool is 0xFFF8 - sizeof (EFI_HOB_MEMORY_POOL)
   //
   if (Size > (0xFFF8 - sizeof (EFI_HOB_MEMORY_POOL))) {

MdeModulePkg/Core/Pei/PeiMain.h

@@ -1217,8 +1217,8 @@ PeiFfsGetVolumeInfo (
   );
 
 /**
-  This routine enable a PEIM to register itself to shadow when PEI Foundation
+  This routine enables a PEIM to register itself for shadow when the PEI Foundation
-  discovery permanent memory.
+  discovers permanent memory.
 
   @param FileHandle             File handle of a PEIM.
 
@@ -1314,12 +1314,13 @@ ProcessFvFile (
   );
 
 /**
-  Get instance of PEI_CORE_FV_HANDLE for next volume according to given index.
+  Gets a PEI_CORE_FV_HANDLE instance for the next volume according to the given index.
 
-  This routine also will install FvInfo PPI for FV HOB in PI ways.
+  This routine also will install an instance of the FvInfo PPI for the FV HOB
+  as defined in the PI specification.
 
   @param Private    Pointer of PEI_CORE_INSTANCE
-  @param Instance   The index of FV want to be searched.
+  @param Instance   Index of the FV to search
 
   @return Instance of PEI_CORE_FV_HANDLE.
 **/