MdeModulePkg: Add the alignment check for FTW spare area address and length, and...

[mirror_edk2.git] / MdeModulePkg / MdeModulePkg.dec

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 7db47ecfb87cb47eb8d6dec5c922b1c27d74646d..ba922a935be89d5bf469cde3de51bc2e37b92762 100644 (file)
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -548,7 +548,7 @@
   ## The size of volatile buffer. This buffer is used to store VOLATILE attribute variable.\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize|0x10000|UINT32|0x30000005\r
 \r
-  ## Size of the FTW spare block range. Note that this value should larger than PcdFlashNvStorageVariableSize\r
+  ## Size of the FTW spare block range. Note that this value should larger than PcdFlashNvStorageVariableSize and block size aligned.\r
   # The root cause is that variable driver will use FTW protocol to reclaim variable region.\r
   # If the length of variable region is larger than FTW spare size, it means the whole variable region can not\r
   # be reflushed through the manner of fault tolerant write.\r
@@ -679,7 +679,7 @@
   ## Base address of the NV variable range in flash device\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase|0x0|UINT32|0x30000001\r
 \r
-  ## Base address of the FTW spare block range in flash device.\r
+  ## Base address of the FTW spare block range in flash device. Note that this value should be block size aligned.\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase|0x0|UINT32|0x30000013\r
 \r
   ## Base address of the FTW working block range in flash device.\r
@@ -688,7 +688,7 @@
   ## 64-bit Base address of the NV variable range in flash device\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64|0x0|UINT64|0x80000001\r
 \r
-  ## 64-bit Base address of the FTW spare block range in flash device.\r
+  ## 64-bit Base address of the FTW spare block range in flash device. Note that this value should be block size aligned.\r
   gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64|0x0|UINT64|0x80000013\r
 \r
   ## 64-bit Base address of the FTW working block range in flash device.\r