--- /dev/null
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg@chromium.org>
+#
+# Entry-type module for Intel Management Engine binary blob
+#
+
+from collections import OrderedDict
+
+from entry import Entry
+from blob import Entry_blob
+import fdt_util
+import tools
+
+class Entry_intel_ifwi(Entry_blob):
+ """Entry containing an Intel Integrated Firmware Image (IFWI) file
+
+ Properties / Entry arguments:
+ - filename: Filename of file to read into entry. This is either the
+ IFWI file itself, or a file that can be converted into one using a
+ tool
+ - convert-fit: If present this indicates that the ifwitool should be
+ used to convert the provided file into a IFWI.
+
+ This file contains code and data used by the SoC that is required to make
+ it work. It includes U-Boot TPL, microcode, things related to the CSE
+ (Converged Security Engine, the microcontroller that loads all the firmware)
+ and other items beyond the wit of man.
+
+ A typical filename is 'ifwi.bin' for an IFWI file, or 'fitimage.bin' for a
+ file that will be converted to an IFWI.
+
+ The position of this entry is generally set by the intel-descriptor entry.
+
+ The contents of the IFWI are specified by the subnodes of the IFWI node.
+ Each subnode describes an entry which is placed into the IFWFI with a given
+ sub-partition (and optional entry name).
+
+ See README.x86 for information about x86 binary blobs.
+ """
+ def __init__(self, section, etype, node):
+ Entry_blob.__init__(self, section, etype, node)
+ self._convert_fit = fdt_util.GetBool(self._node, 'convert-fit')
+ self._ifwi_entries = OrderedDict()
+ self._ReadSubnodes()
+
+ def ObtainContents(self):
+ """Get the contects for the IFWI
+
+ Unfortunately we cannot create anything from scratch here, as Intel has
+ tools which create precursor binaries with lots of data and settings,
+ and these are not incorporated into binman.
+
+ The first step is to get a file in the IFWI format. This is either
+ supplied directly or is extracted from a fitimage using the 'create'
+ subcommand.
+
+ After that we delete the OBBP sub-partition and add each of the files
+ that we want in the IFWI file, one for each sub-entry of the IWFI node.
+ """
+ self._pathname = tools.GetInputFilename(self._filename)
+
+ # Create the IFWI file if needed
+ if self._convert_fit:
+ inname = self._pathname
+ outname = tools.GetOutputFilename('ifwi.bin')
+ tools.RunIfwiTool(inname, tools.CMD_CREATE, outname)
+ self._filename = 'ifwi.bin'
+ self._pathname = outname
+ else:
+ # Provide a different code path here to ensure we have test coverage
+ inname = self._pathname
+
+ # Delete OBBP if it is there, then add the required new items.
+ tools.RunIfwiTool(inname, tools.CMD_DELETE, subpart='OBBP')
+
+ for entry in self._ifwi_entries.values():
+ # First get the input data and put it in a file
+ if not entry.ObtainContents():
+ return False
+ data = entry.GetData()
+ uniq = self.GetUniqueName()
+ input_fname = tools.GetOutputFilename('input.%s' % uniq)
+ tools.WriteFile(input_fname, data)
+
+ tools.RunIfwiTool(inname,
+ tools.CMD_REPLACE if entry._ifwi_replace else tools.CMD_ADD,
+ input_fname, entry._ifwi_subpart, entry._ifwi_entry_name)
+
+ self.ReadBlobContents()
+ return True
+
+ def _ReadSubnodes(self):
+ """Read the subnodes to find out what should go in this IFWI"""
+ for node in self._node.subnodes:
+ entry = Entry.Create(self.section, node)
+ entry._ifwi_replace = fdt_util.GetBool(node, 'replace')
+ entry._ifwi_subpart = fdt_util.GetString(node, 'ifwi-subpart')
+ entry._ifwi_entry_name = fdt_util.GetString(node, 'ifwi-entry')
+ self._ifwi_entries[entry._ifwi_subpart] = entry
import fdt_util
import fmap_util
import test_util
+import gzip
import state
import tools
import tout
def testPackX86RomMe(self):
"""Test that an x86 ROM with an ME region can be created"""
data = self._DoReadFile('031_x86-rom-me.dts')
+ expected_desc = tools.ReadFile(self.TestFile('descriptor.bin'))
+ if data[:0x1000] != expected_desc:
+ self.fail('Expected descriptor binary at start of image')
self.assertEqual(ME_DATA, data[0x1000:0x1000 + len(ME_DATA)])
def testPackVga(self):
cfile2 = cbfs.files['hello']
self.assertEqual(U_BOOT_DTB_DATA, cfile2.data)
+ def _SetupIfwi(self, fname):
+ """Set up to run an IFWI test
+
+ Args:
+ fname: Filename of input file to provide (fitimage.bin or ifwi.bin)
+ """
+ self._SetupSplElf()
+
+ # Intel Integrated Firmware Image (IFWI) file
+ with gzip.open(self.TestFile('%s.gz' % fname), 'rb') as fd:
+ data = fd.read()
+ TestFunctional._MakeInputFile(fname,data)
+
+ def _CheckIfwi(self, data):
+ """Check that an image with an IFWI contains the correct output
+
+ Args:
+ data: Conents of output file
+ """
+ expected_desc = tools.ReadFile(self.TestFile('descriptor.bin'))
+ if data[:0x1000] != expected_desc:
+ self.fail('Expected descriptor binary at start of image')
+
+ # We expect to find the TPL wil in subpart IBBP entry IBBL
+ image_fname = tools.GetOutputFilename('image.bin')
+ tpl_fname = tools.GetOutputFilename('tpl.out')
+ tools.RunIfwiTool(image_fname, tools.CMD_EXTRACT, fname=tpl_fname,
+ subpart='IBBP', entry_name='IBBL')
+
+ tpl_data = tools.ReadFile(tpl_fname)
+ self.assertEqual(tpl_data[:len(U_BOOT_TPL_DATA)], U_BOOT_TPL_DATA)
+
+ def testPackX86RomIfwi(self):
+ """Test that an x86 ROM with Integrated Firmware Image can be created"""
+ self._SetupIfwi('fitimage.bin')
+ data = self._DoReadFile('111_x86-rom-ifwi.dts')
+ self._CheckIfwi(data)
+
+ def testPackX86RomIfwiNoDesc(self):
+ """Test that an x86 ROM with IFWI can be created from an ifwi.bin file"""
+ self._SetupIfwi('ifwi.bin')
+ data = self._DoReadFile('112_x86-rom-ifwi-nodesc.dts')
+ self._CheckIfwi(data)
+
+ def testPackX86RomIfwiNoData(self):
+ """Test that an x86 ROM with IFWI handles missing data"""
+ self._SetupIfwi('ifwi.bin')
+ with self.assertRaises(ValueError) as e:
+ data = self._DoReadFile('113_x86-rom-ifwi-nodata.dts')
+ self.assertIn('Could not complete processing of contents',
+ str(e.exception))
if __name__ == "__main__":
unittest.main()
projects / oweals / u-boot.git / commitdiff