refine pcd comments

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7800 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 11 insertions, 5 deletions

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 44962de..9aa71b0 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -221,7 +221,9 @@
   #  It can be disabled to save size.

   gEfiMdeModulePkgTokenSpaceGuid.PcdDevicePathSupportDevicePathFromText|TRUE|BOOLEAN|0x00010038

     

-  ## If TRUE, track statistical information about variable usage stored in the EFI system table.

+  ## If TRUE, enable the statistic functionality about variable usage. Such information is

+  #  stored as a vendor configuration table into the EFI system table.

+  #  If user wants to get variable usage info, this pcd should be set as TRUE.

   gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics|FALSE|BOOLEAN|0x0001003f

   

   ## If TRUE, Unicode Collation Protocol will be installed.

@@ -245,7 +247,9 @@
   #  It can be set according to the generated image section type.

   gEfiMdeModulePkgTokenSpaceGuid.PcdPeiCoreImageLoaderSearchTeSectionFirst|TRUE|BOOLEAN|0x00010044

   

-  ## If TRUE, Robustnesss improvement such as for DUET. Default is not required.

+  ## If TRUE, force to switch off the support of legacy usb. So legacy usb device driver can not make use of SMI

+  #  interrupt to access usb device in the case of absence of usb stack.

+  ##

   gEfiMdeModulePkgTokenSpaceGuid.PcdTurnOffUsbLegacySupport|FALSE|BOOLEAN|0x00010047

 

   ## If TRUE, HiiImageProtocol will be installed.

@@ -315,13 +319,15 @@
   ## Size of the NV variable range.

   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize|0x0|UINT32|0x30000002

   

-  ## Maximum buffer for the single variable.

+  ## Maximum allowable size of a common type variable, that is, non-hardware error type variable.

   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize|0x400|UINT32|0x30000003

   

-  ## Maximum buffer for Hardware error record variable.

+  ## Maximum allowable size of a single hardware error record variable.

   gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize|0x8000|UINT32|0x30000004

   

-  ## Maximum buffer for the total variable store.

+  ## Size of allocated memory for volatile variable store. Variables are stored in such region and 

+  #  total length of all variables should not larger than this value.

+  ##

   gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize|0x10000|UINT32|0x30000005

    

   ## Size of the FTW spare block range.