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-rw-r--r--MdeModulePkg/MdeModulePkg.dec7
1 files changed, 4 insertions, 3 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index f2c7081dd1..83c8534858 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -272,10 +272,11 @@
# In IA64 platforms, this value should be larger than 128KB.
gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize|0x8000|UINT32|0x30000004
- ## The size of reserved HwErr variable space. This space is located at NV variable range.
- # HwErr type variable is stored with common non-volatile variables in NV region.
+ ## The size of reserved HwErr variable space. Note that this value must be less than or equal to PcdFlashNvStorageVariableSize
+ # In EdkII implementation, HwErr type variable is stored with common non-volatile variables in the same NV region.
+ # so the platform integrator should ensure this value is less than or equal to PcdFlashNvStorageVariableSize.
# this value is used to guarantee the space of HwErr type variable and not populated by common variable.
- gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize|0x8000|UINT32|0x30000006
+ gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize|0x0000|UINT32|0x30000006
## The size of volatile buffer. This buffer is used to store VOLATILE attribute variable.
gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize|0x10000|UINT32|0x30000005