[edk2-devel] [PATCH 1/4] MinPlatformPkg: Auto configure Fsp*BaseAddress PCD

[Chiu, Chasel]

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1863

Add python script which will rebase FSP binary without
patching platform DSC for Fsp*BaseAddress PCDs.
Those base address PCD will be updated in FDF basing
on flash map.

Cc: Michael Kubacki <michael.a.kubacki at intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
Cc: Liming Gao <liming.gao at intel.com>
Signed-off-by: Chasel Chiu <chasel.chiu at intel.com>
---
 Platform/Intel/MinPlatformPkg/Tools/Fsp/RebaseFspBinBaseAddress.py | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/Platform/Intel/MinPlatformPkg/Tools/Fsp/RebaseFspBinBaseAddress.py b/Platform/Intel/MinPlatformPkg/Tools/Fsp/RebaseFspBinBaseAddress.py
new file mode 100644
index 0000000000..a8165b08e6
--- /dev/null
+++ b/Platform/Intel/MinPlatformPkg/Tools/Fsp/RebaseFspBinBaseAddress.py
@@ -0,0 +1,96 @@
+## @ RebaseFspBinBaseAddress.py
+#
+# Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+
+import os
+import sys
+import re
+import subprocess
+
+if len(sys.argv) not in [5,6]:
+  print ("RebaseFspBinBaseAddress.py - Error in number of arguments received")
+  print ("Usage - RebaseFspBinBaseAddress.py <FlashMap file path> <FspBinPkg Folder> <Fsp.fd file name>\
+  <pad_offset for Fsp-S Base Address> <OPTIONAL SplitFspBin.py tool path>")
+  exit(1)
+
+flashMapName      = sys.argv[1]
+fspBinPath        = sys.argv[2]
+fspBinFile        = sys.argv[3]
+fvOffset          = int(sys.argv[4], 16)
+fspBinFileRebased = "Fsp_Rebased.fd"
+splitFspBinPath   = os.path.join("edk2","IntelFsp2Pkg","Tools","SplitFspBin.py")
+
+if len(sys.argv) == 6:
+  splitFspBinPath   = sys.argv[5]
+
+#
+# Make sure argument passed or valid
+#
+if not os.path.exists(flashMapName):
+  print ("WARNING!  " + str(flashMapName) + " is not found.")
+  exit(1)
+fspBinFilePath = fspBinPath + os.sep + fspBinFile
+if not os.path.exists(fspBinFilePath):
+  print ("WARNING!  " + str(fspBinFilePath) + " is not found.")
+  exit(1)
+if not os.path.exists(splitFspBinPath):
+  print ("WARNING!  " + str(splitFspBinPath) + " is not found.")
+  exit(1)
+
+#
+# Get the FSP-S / FSP-M-T FV Base Address from Flash Map
+#
+file = open (flashMapName, "r")
+data = file.read ()
+
+# Get the Flash Base Address
+flashBase = int(data.split("FLASH_BASE")[1].split("=")[1].split()[0], 16)
+
+# Based on Build Target, select the section in the FlashMap file
+flashmap = data
+
+# Get FSP-S & FSP-M & FSP-T offset & calculate the base
+for line in flashmap.split("\n"):
+  if "PcdFlashFvFspSOffset" in line:
+    fspSBaseOffset = int(line.split("=")[1].split()[0], 16)
+  if "PcdFlashFvFspMOffset" in line:
+    fspMBaseOffset = int(line.split("=")[1].split()[0], 16)
+  if "PcdFlashFvFspTOffset" in line:
+    fspTBaseOffset = int(line.split("=")[1].split()[0], 16)
+file.close()
+
+#
+# Get FSP-M Size, in order to calculate the FSP-T Base. Used SplitFspBin.py script
+# to dump the header, and get the ImageSize in FSP-M section
+#
+pythontool = 'python'
+if 'PYTHON_HOME' in os.environ:
+    pythontool = os.environ['PYTHON_HOME'] + os.sep + 'python'
+Process = subprocess.Popen([pythontool, splitFspBinPath, "info","-f",fspBinFilePath], stdout=subprocess.PIPE)
+Output = Process.communicate()[0]
+FsptInfo = Output.rsplit(b"FSP_M", 1);
+for line in FsptInfo[1].split(b"\n"):
+  if b"ImageSize" in line:
+    fspMSize = int(line.split(b"=")[1], 16)
+    break
+
+# Calculate FSP-S/M/T base address, to which re-base has to be done
+fspSBaseAddress = flashBase + fspSBaseOffset + fvOffset
+fspMBaseAddress = flashBase + fspMBaseOffset
+fspTBaseAddress = flashBase + fspTBaseOffset
+
+#
+# Re-base FSP bin file to new address and save it as fspBinFileRebased using SplitFspBin.py
+#
+rebaseArguments = fspBinFilePath + " -c s m t -b " + str(hex(fspSBaseAddress).rstrip("L")) + " " + str(hex(fspMBaseAddress).rstrip("L")) + " " + str(hex(fspTBaseAddress).rstrip("L")) + " -o" + fspBinPath + " -n " + fspBinFileRebased
+os.system(pythontool + " " + splitFspBinPath + " rebase -f" + rebaseArguments)
+
+#
+# Split FSP bin to FSP-S/M/T segments
+#
+splitArguments = fspBinPath + os.sep + fspBinFileRebased + " -o " + fspBinPath + " -n Fsp_Rebased.fd"
+os.system(pythontool + " " + splitFspBinPath + " split -f" + splitArguments)
+
+exit(0)
-- 
2.13.3.windows.1


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