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-rw-r--r--BaseTools/Source/Python/Capsule/GenerateCapsule.py11
1 files changed, 11 insertions, 0 deletions
diff --git a/BaseTools/Source/Python/Capsule/GenerateCapsule.py b/BaseTools/Source/Python/Capsule/GenerateCapsule.py
index 76426dcf66..d829000849 100644
--- a/BaseTools/Source/Python/Capsule/GenerateCapsule.py
+++ b/BaseTools/Source/Python/Capsule/GenerateCapsule.py
@@ -1,6 +1,17 @@
## @file
# Generate a capsule.
#
+# This tool generates a UEFI Capsule around an FMP Capsule. The capsule payload
+# be signed using signtool or OpenSSL and if it is signed the signed content
+# includes an FMP Payload Header.
+#
+# This tool is intended to be used to generate UEFI Capsules to update the
+# system firmware or device firmware for integrated devices. In order to
+# keep the tool as simple as possible, it has the following limitations:
+# * Do not support multiple payloads in a capsule.
+# * Do not support optional drivers in a capsule.
+# * Do not support vendor code bytes in a capsule.
+#
# Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License