[U-Boot] [PATCH v2 06/12] binman: Add support for building x86 ROMs
Simon Glass
sjg at chromium.org
Sun Sep 25 23:52:22 CEST 2016
The structure of x86 ROMs is pretty complex. There are various binary blobs
to place in the image. Microcode requires special handling so that it is
available to very early code and can be used without any memory whatsoever.
Add support for the various entry types that are currently needed, along
with some tests.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v2: None
tools/binman/etype/intel_descriptor.py | 55 +++++++++++
tools/binman/etype/intel_me.py | 17 ++++
tools/binman/etype/intel_mrc.py | 17 ++++
tools/binman/etype/intel_vga.py | 17 ++++
tools/binman/etype/u_boot_dtb_with_ucode.py | 72 ++++++++++++++
tools/binman/etype/u_boot_ucode.py | 77 +++++++++++++++
tools/binman/etype/u_boot_with_ucode_ptr.py | 73 ++++++++++++++
tools/binman/etype/x86_start16.py | 17 ++++
tools/binman/func_test.py | 145 ++++++++++++++++++++++++++++
tools/binman/test/27_pack_4gb_no_size.dts | 18 ++++
tools/binman/test/28_pack_4gb_outside.dts | 19 ++++
tools/binman/test/29_x86-rom.dts | 19 ++++
tools/binman/test/30_x86-rom-me-no-desc.dts | 15 +++
tools/binman/test/31_x86-rom-me.dts | 18 ++++
tools/binman/test/32_intel-vga.dts | 13 +++
tools/binman/test/33_x86-start16.dts | 13 +++
tools/binman/test/34_x86_ucode.dts | 29 ++++++
tools/binman/test/35_x86_single_ucode.dts | 26 +++++
tools/binman/test/u_boot_ucode_ptr | Bin 0 -> 4175 bytes
tools/binman/test/u_boot_ucode_ptr.c | 15 +++
tools/binman/test/u_boot_ucode_ptr.lds | 18 ++++
21 files changed, 693 insertions(+)
create mode 100644 tools/binman/etype/intel_descriptor.py
create mode 100644 tools/binman/etype/intel_me.py
create mode 100644 tools/binman/etype/intel_mrc.py
create mode 100644 tools/binman/etype/intel_vga.py
create mode 100644 tools/binman/etype/u_boot_dtb_with_ucode.py
create mode 100644 tools/binman/etype/u_boot_ucode.py
create mode 100644 tools/binman/etype/u_boot_with_ucode_ptr.py
create mode 100644 tools/binman/etype/x86_start16.py
create mode 100644 tools/binman/test/27_pack_4gb_no_size.dts
create mode 100644 tools/binman/test/28_pack_4gb_outside.dts
create mode 100644 tools/binman/test/29_x86-rom.dts
create mode 100644 tools/binman/test/30_x86-rom-me-no-desc.dts
create mode 100644 tools/binman/test/31_x86-rom-me.dts
create mode 100644 tools/binman/test/32_intel-vga.dts
create mode 100644 tools/binman/test/33_x86-start16.dts
create mode 100644 tools/binman/test/34_x86_ucode.dts
create mode 100644 tools/binman/test/35_x86_single_ucode.dts
create mode 100755 tools/binman/test/u_boot_ucode_ptr
create mode 100644 tools/binman/test/u_boot_ucode_ptr.c
create mode 100644 tools/binman/test/u_boot_ucode_ptr.lds
diff --git a/tools/binman/etype/intel_descriptor.py b/tools/binman/etype/intel_descriptor.py
new file mode 100644
index 0000000..7f4ea0b
--- /dev/null
+++ b/tools/binman/etype/intel_descriptor.py
@@ -0,0 +1,55 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for 'u-boot'
+#
+
+import struct
+
+from entry import Entry
+from blob import Entry_blob
+
+FD_SIGNATURE = struct.pack('<L', 0x0ff0a55a)
+MAX_REGIONS = 5
+
+(REGION_DESCRIPTOR, REGION_BIOS, REGION_ME, REGION_GBE,
+ REGION_PDATA) = range(5)
+
+class Region:
+ def __init__(self, data, frba, region_num):
+ pos = frba + region_num * 4
+ val = struct.unpack('<L', data[pos:pos + 4])[0]
+ self.base = (val & 0xfff) << 12
+ self.limit = ((val & 0x0fff0000) >> 4) | 0xfff
+ self.size = self.limit - self.base + 1
+
+class Entry_intel_descriptor(Entry_blob):
+ """Intel flash descriptor block (4KB)
+
+ This is placed at the start of flash and provides information about
+ the SPI flash regions. In particular it provides the base address and
+ size of the ME region, allowing us to place the ME binary in the right
+ place.
+ """
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+ self._regions = []
+
+ def GetDefaultFilename(self):
+ return 'descriptor.bin'
+
+ def GetPositions(self):
+ pos = self.data.find(FD_SIGNATURE)
+ if pos == -1:
+ self.Raise('Cannot find FD signature')
+ flvalsig, flmap0, flmap1, flmap2 = struct.unpack('<LLLL',
+ self.data[pos:pos + 16])
+ frba = ((flmap0 >> 16) & 0xff) << 4
+ for i in range(MAX_REGIONS):
+ self._regions.append(Region(self.data, frba, i))
+
+ # Set the offset for ME only, for now, since the others are not used
+ return {'intel-me': [self._regions[REGION_ME].base,
+ self._regions[REGION_ME].size]}
diff --git a/tools/binman/etype/intel_me.py b/tools/binman/etype/intel_me.py
new file mode 100644
index 0000000..fbb553a
--- /dev/null
+++ b/tools/binman/etype/intel_me.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for 'u-boot'
+#
+
+from entry import Entry
+from blob import Entry_blob
+
+class Entry_intel_me(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def GetDefaultFilename(self):
+ return 'me.bin'
diff --git a/tools/binman/etype/intel_mrc.py b/tools/binman/etype/intel_mrc.py
new file mode 100644
index 0000000..3bf9dc0
--- /dev/null
+++ b/tools/binman/etype/intel_mrc.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for 'u-boot'
+#
+
+from entry import Entry
+from blob import Entry_blob
+
+class Entry_intel_mrc(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def GetDefaultFilename(self):
+ return 'mrc.bin'
diff --git a/tools/binman/etype/intel_vga.py b/tools/binman/etype/intel_vga.py
new file mode 100644
index 0000000..be666dd
--- /dev/null
+++ b/tools/binman/etype/intel_vga.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for 'u-boot'
+#
+
+from entry import Entry
+from blob import Entry_blob
+
+class Entry_intel_vga(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def GetDefaultFilename(self):
+ return 'vga.bin'
diff --git a/tools/binman/etype/u_boot_dtb_with_ucode.py b/tools/binman/etype/u_boot_dtb_with_ucode.py
new file mode 100644
index 0000000..8974241
--- /dev/null
+++ b/tools/binman/etype/u_boot_dtb_with_ucode.py
@@ -0,0 +1,72 @@
+# Copyright (c) 2016 Google, Inc
+## Written by Simon Glass <sjg at chromium.org>
+
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for U-Boot device tree with the microcode removed
+#
+
+import fdt_select
+import fdt_util
+from entry import Entry
+from blob import Entry_blob
+import tools
+
+class Entry_u_boot_dtb_with_ucode(Entry_blob):
+ """A U-Boot device tree file, with the microcode removed
+
+ See Entry_u_boot_ucode for full details of the 3 entries involved in this
+ process.
+ """
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+ self.ucode_data = ''
+ self.collate = False
+ self.ucode_offset = None
+ self.ucode_size = None
+
+ def GetDefaultFilename(self):
+ return 'u-boot.dtb'
+
+ def ObtainContents(self):
+ Entry_blob.ObtainContents(self)
+
+ # Create a new file to hold the copied device tree
+ dtb_name = 'u-boot-dtb-with-ucode.dtb'
+ fname = tools.GetOutputFilename(dtb_name)
+ with open(fname, 'wb') as fd:
+ fd.write(self.data)
+
+ # Remove the microcode
+ fdt = fdt_select.FdtScan(fname)
+ fdt.Scan()
+ ucode = fdt.GetNode('/microcode')
+ if not ucode:
+ raise self.Raise("No /microcode node found in '%s'" % fname)
+
+ # There's no need to collate it (move all microcode into one place)
+ # if we only have one chunk of microcode.
+ self.collate = len(ucode.subnodes) > 1
+ for node in ucode.subnodes:
+ data_prop = node.props.get('data')
+ if data_prop:
+ self.ucode_data += ''.join(data_prop.bytes)
+ if not self.collate:
+ poffset = data_prop.GetOffset()
+ if poffset is None:
+ # We cannot obtain a property offset. Collate instead.
+ self.collate = True
+ else:
+ # Find the offset in the device tree of the ucode data
+ self.ucode_offset = poffset + 12
+ self.ucode_size = len(data_prop.bytes)
+ if self.collate:
+ prop = node.DeleteProp('data')
+ if self.collate:
+ fdt.Pack()
+ fdt.Flush()
+
+ # Make this file the contents of this entry
+ self._pathname = fname
+ self.ReadContents()
+ return True
diff --git a/tools/binman/etype/u_boot_ucode.py b/tools/binman/etype/u_boot_ucode.py
new file mode 100644
index 0000000..8d147d0
--- /dev/null
+++ b/tools/binman/etype/u_boot_ucode.py
@@ -0,0 +1,77 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for a U-Boot binary with an embedded microcode pointer
+#
+
+from entry import Entry
+from blob import Entry_blob
+import tools
+
+class Entry_u_boot_ucode(Entry_blob):
+ """U-Boot microcode block
+
+ U-Boot on x86 needs a single block of microcode. This is collected from
+ the various microcode update nodes in the device tree. It is also unable
+ to read the microcode from the device tree on platforms that use FSP
+ (Firmware Support Package) binaries, because the API requires that the
+ microcode is supplied before there is any SRAM available to use (i.e.
+ the FSP sets up the SRAM / cache-as-RAM but does so in the call that
+ requires the microcode!). To keep things simple, all x86 platforms handle
+ microcode the same way in U-Boot (even non-FSP platforms). This is that
+ a table is placed at _dt_ucode_base_size containing the base address and
+ size of the microcode. This is either passed to the FSP (for FSP
+ platforms), or used to set up the microcode (for non-FSP platforms).
+ This all happens in the build system since it is the only way to get
+ the microcode into a single blob and accessible without SRAM.
+
+ There are two cases to handle. If there is only one microcode blob in
+ the device tree, then the ucode pointer it set to point to that. This
+ entry (u-boot-ucode) is empty. If there is more than one update, then
+ this entry holds the concatenation of all updates, and the device tree
+ entry (u-boot-dtb-with-ucode) is updated to remove the microcode. This
+ last step ensures that that the microcode appears in one contiguous
+ block in the image and is not unnecessarily duplicated in the device
+ tree. It is referred to as 'collation' here.
+
+ Entry types that have a part to play in handling microcode:
+
+ Entry_u_boot_with_ucode_ptr:
+ Contains u-boot-nodtb.bin (i.e. U-Boot without the device tree).
+ It updates it with the address and size of the microcode so that
+ U-Boot can find it early on start-up.
+ Entry_u_boot_dtb_with_ucode:
+ Contains u-boot.dtb. It stores the microcode in a
+ 'self.ucode_data' property, which is then read by this class to
+ obtain the microcode if needed. If collation is performed, it
+ removes the microcode from the device tree.
+ Entry_u_boot_ucode:
+ This class. If collation is enabled it reads the microcode from
+ the Entry_u_boot_dtb_with_ucode entry, and uses it as the
+ contents of this entry.
+ """
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def ObtainContents(self):
+ # Get the microcode from the device tree entry
+ fdt_entry = self.image.FindEntryType('u-boot-dtb-with-ucode')
+ if not fdt_entry or not fdt_entry.ucode_data:
+ return False
+ if not fdt_entry.collate:
+ # This section can be empty
+ self.data = ''
+ return True
+
+ # Write it out to a file
+ dtb_name = 'u-boot-ucode.bin'
+ fname = tools.GetOutputFilename(dtb_name)
+ with open(fname, 'wb') as fd:
+ fd.write(fdt_entry.ucode_data)
+
+ self._pathname = fname
+ self.ReadContents()
+
+ return True
diff --git a/tools/binman/etype/u_boot_with_ucode_ptr.py b/tools/binman/etype/u_boot_with_ucode_ptr.py
new file mode 100644
index 0000000..b647ea9
--- /dev/null
+++ b/tools/binman/etype/u_boot_with_ucode_ptr.py
@@ -0,0 +1,73 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for a U-Boot binary with an embedded microcode pointer
+#
+
+import struct
+
+import command
+from entry import Entry
+from blob import Entry_blob
+import tools
+
+class Entry_u_boot_with_ucode_ptr(Entry_blob):
+ """U-Boot with embedded microcode pointer
+
+ See Entry_u_boot_ucode for full details of the 3 entries involved in this
+ process.
+ """
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+ self.elf_fname = 'u-boot'
+
+ def GetDefaultFilename(self):
+ return 'u-boot-nodtb.bin'
+
+ def ObtainContents(self):
+ return Entry_blob.ObtainContents(self)
+
+ def ProcessContents(self):
+ # Get the position of the microcode
+ ucode_entry = self.image.FindEntryType('u-boot-ucode')
+ if not ucode_entry:
+ self.Raise('Cannot find microcode region u-boot-ucode')
+
+ # Figure out where to put the microcode pointer
+ fname = tools.GetInputFilename(self.elf_fname)
+ args = [['nm', fname], ['grep', '-w', '_dt_ucode_base_size']]
+ out = (command.RunPipe(args, capture=True, raise_on_error=False).
+ stdout.splitlines())
+ if len(out) != 1:
+ self.Raise('Cannot locate _dt_ucode_base_size symbol in u-boot')
+ target_pos = int(out[0].split()[0], 16)
+
+ # Check that it is in the image. If it is not, then U-Boot is being
+ # linked incorrectly, or is being placed at the wrong position in the
+ # image. The image must be set up so that U-Boot is placed at the
+ # flash address to which it is linked. For example, if
+ # CONFIG_SYS_TEXT_BASE is 0xfff00000, and the ROM is 8MB, then
+ # the U-Boot region must start at position 7MB in the image. In this
+ # case the ROM starts at 0xff800000, so the position of the first
+ # entry in the image corresponds to that.
+ if target_pos < self.pos or target_pos >= self.pos + self.size:
+ self.Raise('Microcode pointer _dt_ucode_base_size at %08x is '
+ 'outside the image ranging from %08x to %08x' %
+ (target_pos, self.pos, self.pos + self.size))
+
+ if ucode_entry.size:
+ pos, size = ucode_entry.pos, ucode_entry.size
+ else:
+ dtb_entry = self.image.FindEntryType('u-boot-dtb-with-ucode')
+ if not dtb_entry:
+ self.Raise('Cannot find microcode region u-boot-dtb-with-ucode')
+ pos = dtb_entry.pos + dtb_entry.ucode_offset
+ size = dtb_entry.ucode_size
+
+ # Write the microcode position and size into the entry
+ pos_and_size = struct.pack('<2L', pos, size)
+ target_pos -= self.pos
+ self.data = (self.data[:target_pos] + pos_and_size +
+ self.data[target_pos + 8:])
diff --git a/tools/binman/etype/x86_start16.py b/tools/binman/etype/x86_start16.py
new file mode 100644
index 0000000..a44ea68
--- /dev/null
+++ b/tools/binman/etype/x86_start16.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for the 16-bit x86 start-up code for U-Boot
+#
+
+from entry import Entry
+from blob import Entry_blob
+
+class Entry_x86_start16(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def GetDefaultFilename(self):
+ return 'u-boot-x86-16bit.bin'
diff --git a/tools/binman/func_test.py b/tools/binman/func_test.py
index bf6e9ed..a32f640 100644
--- a/tools/binman/func_test.py
+++ b/tools/binman/func_test.py
@@ -65,10 +65,21 @@ class TestFunctional(unittest.TestCase):
TestFunctional._MakeInputFile('u-boot.img', U_BOOT_IMG_DATA)
TestFunctional._MakeInputFile('spl/u-boot-spl.bin', U_BOOT_SPL_DATA)
TestFunctional._MakeInputFile('blobfile', BLOB_DATA)
+ TestFunctional._MakeInputFile('me.bin', ME_DATA)
+ TestFunctional._MakeInputFile('vga.bin', VGA_DATA)
TestFunctional._MakeInputFile('u-boot.dtb', U_BOOT_DTB_DATA)
+ TestFunctional._MakeInputFile('u-boot-x86-16bit.bin', X86_START16_DATA)
TestFunctional._MakeInputFile('u-boot-nodtb.bin', U_BOOT_NODTB_DATA)
self._output_setup = False
+ # ELF file with a '_dt_ucode_base_size' symbol
+ with open(self.TestFile('u_boot_ucode_ptr')) as fd:
+ TestFunctional._MakeInputFile('u-boot', fd.read())
+
+ # Intel flash descriptor file
+ with open(self.TestFile('descriptor.bin')) as fd:
+ TestFunctional._MakeInputFile('descriptor.bin', fd.read())
+
@classmethod
def tearDownClass(self):
"""Remove the temporary input directory and its contents"""
@@ -540,3 +551,137 @@ class TestFunctional(unittest.TestCase):
"""Test that a device tree can be added to U-Boot"""
data = self._DoReadFile('26_pack_u_boot_dtb.dts')
self.assertEqual(U_BOOT_NODTB_DATA + U_BOOT_DTB_DATA, data)
+
+ def testPackX86RomNoSize(self):
+ """Test that the end-at-4gb property requires a size property"""
+ with self.assertRaises(ValueError) as e:
+ self._DoTestFile('27_pack_4gb_no_size.dts')
+ self.assertIn("Image '/binman': Image size must be provided when "
+ "using end-at-4gb", str(e.exception))
+
+ def testPackX86RomOutside(self):
+ """Test that the end-at-4gb property checks for position boundaries"""
+ with self.assertRaises(ValueError) as e:
+ self._DoTestFile('28_pack_4gb_outside.dts')
+ self.assertIn("Node '/binman/u-boot': Position 0x0 (0) is outside "
+ "the image starting at 0xfffffff0 (4294967280)",
+ str(e.exception))
+
+ def testPackX86Rom(self):
+ """Test that a basic x86 ROM can be created"""
+ data = self._DoReadFile('29_x86-rom.dts')
+ self.assertEqual(U_BOOT_DATA + chr(0) * 3 + U_BOOT_SPL_DATA +
+ chr(0) * 6, data)
+
+ def testPackX86RomMeNoDesc(self):
+ """Test that an invalid Intel descriptor entry is detected"""
+ TestFunctional._MakeInputFile('descriptor.bin', '')
+ with self.assertRaises(ValueError) as e:
+ self._DoTestFile('31_x86-rom-me.dts')
+ self.assertIn("Node '/binman/intel-descriptor': Cannot find FD "
+ "signature", str(e.exception))
+
+ def testPackX86RomBadDesc(self):
+ """Test that the Intel requires a descriptor entry"""
+ with self.assertRaises(ValueError) as e:
+ self._DoTestFile('30_x86-rom-me-no-desc.dts')
+ self.assertIn("Node '/binman/intel-me': No position set with "
+ "pos-unset: should another entry provide this correct "
+ "position?", str(e.exception))
+
+ def testPackX86RomMe(self):
+ """Test that an x86 ROM with an ME region can be created"""
+ data = self._DoReadFile('31_x86-rom-me.dts')
+ self.assertEqual(ME_DATA, data[0x1000:0x1000 + len(ME_DATA)])
+
+ def testPackVga(self):
+ """Test that an image with a VGA binary can be created"""
+ data = self._DoReadFile('32_intel-vga.dts')
+ self.assertEqual(VGA_DATA, data[:len(VGA_DATA)])
+
+ def testPackStart16(self):
+ """Test that an image with an x86 start16 region can be created"""
+ data = self._DoReadFile('33_x86-start16.dts')
+ self.assertEqual(X86_START16_DATA, data[:len(X86_START16_DATA)])
+
+ def testPackUbootMicrocode(self):
+ """Test that x86 microcode can be handled correctly
+
+ We expect to see the following in the image, in order:
+ u-boot-nodtb.bin with a microcode pointer inserted at the correct
+ place
+ u-boot.dtb with the microcode removed
+ the microcode
+ """
+ data = self._DoReadFile('34_x86_ucode.dts', True)
+
+ # Now check the device tree has no microcode
+ second = data[len(U_BOOT_NODTB_DATA):]
+ fname = tools.GetOutputFilename('test.dtb')
+ with open(fname, 'wb') as fd:
+ fd.write(second)
+ fdt = fdt_select.FdtScan(fname)
+ ucode = fdt.GetNode('/microcode')
+ self.assertTrue(ucode)
+ for node in ucode.subnodes:
+ self.assertFalse(node.props.get('data'))
+
+ # Quick way to get the dtb length - see struct fdt_header: totalsize
+ # is the second word
+ fdt_len = struct.unpack('>L', second[4:8])[0]
+
+ third = second[fdt_len:]
+
+ # Check that the microcode appears immediately after the Fdt
+ # This matches the concatenation of the data properties in
+ # the /microcode/update at xxx nodes in x86_ucode.dts.
+ ucode_data = struct.pack('>4L', 0x12345678, 0x12345679, 0xabcd0000,
+ 0x78235609)
+ self.assertEqual(ucode_data, third[:len(ucode_data)])
+ ucode_pos = len(U_BOOT_NODTB_DATA) + fdt_len
+
+ # Check that the microcode pointer was inserted. It should match the
+ # expected position and size
+ pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
+ len(ucode_data))
+ first = data[:len(U_BOOT_NODTB_DATA)]
+ self.assertEqual('nodtb with microcode' + pos_and_size +
+ ' somewhere in here', first)
+
+ def _RunPackUbootSingleMicrocode(self, collate):
+ """Test that x86 microcode can be handled correctly
+
+ We expect to see the following in the image, in order:
+ u-boot-nodtb.bin with a microcode pointer inserted at the correct
+ place
+ u-boot.dtb with the microcode
+ an empty microcode region
+ """
+ # We need the libfdt library to run this test since only that allows
+ # finding the offset of a property. This is required by
+ # Entry_u_boot_dtb_with_ucode.ObtainContents().
+ if not fdt_select.have_libfdt:
+ return
+ data = self._DoReadFile('35_x86_single_ucode.dts', True)
+
+ second = data[len(U_BOOT_NODTB_DATA):]
+
+ # Quick way to get the dtb length - see struct fdt_header: totalsize
+ # is the second word
+ fdt_len = struct.unpack('>L', second[4:8])[0]
+
+ third = second[fdt_len:]
+ second = second[:fdt_len]
+
+ if not collate:
+ ucode_data = struct.pack('>2L', 0x12345678, 0x12345679)
+ self.assertIn(ucode_data, second)
+ ucode_pos = second.find(ucode_data) + len(U_BOOT_NODTB_DATA)
+
+ # Check that the microcode pointer was inserted. It should match the
+ # expected position and size
+ pos_and_size = struct.pack('<2L', 0xfffffe00 + ucode_pos,
+ len(ucode_data))
+ first = data[:len(U_BOOT_NODTB_DATA)]
+ self.assertEqual('nodtb with microcode' + pos_and_size +
+ ' somewhere in here', first)
diff --git a/tools/binman/test/27_pack_4gb_no_size.dts b/tools/binman/test/27_pack_4gb_no_size.dts
new file mode 100644
index 0000000..e0b6519
--- /dev/null
+++ b/tools/binman/test/27_pack_4gb_no_size.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ u-boot {
+ pos = <0xfffffff0>;
+ };
+
+ u-boot-spl {
+ pos = <0xfffffff7>;
+ };
+ };
+};
diff --git a/tools/binman/test/28_pack_4gb_outside.dts b/tools/binman/test/28_pack_4gb_outside.dts
new file mode 100644
index 0000000..ff468c7
--- /dev/null
+++ b/tools/binman/test/28_pack_4gb_outside.dts
@@ -0,0 +1,19 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <16>;
+ u-boot {
+ pos = <0>;
+ };
+
+ u-boot-spl {
+ pos = <0xfffffff7>;
+ };
+ };
+};
diff --git a/tools/binman/test/29_x86-rom.dts b/tools/binman/test/29_x86-rom.dts
new file mode 100644
index 0000000..075ede3
--- /dev/null
+++ b/tools/binman/test/29_x86-rom.dts
@@ -0,0 +1,19 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <16>;
+ u-boot {
+ pos = <0xfffffff0>;
+ };
+
+ u-boot-spl {
+ pos = <0xfffffff7>;
+ };
+ };
+};
diff --git a/tools/binman/test/30_x86-rom-me-no-desc.dts b/tools/binman/test/30_x86-rom-me-no-desc.dts
new file mode 100644
index 0000000..4578f66
--- /dev/null
+++ b/tools/binman/test/30_x86-rom-me-no-desc.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <16>;
+ intel-me {
+ pos-unset;
+ };
+ };
+};
diff --git a/tools/binman/test/31_x86-rom-me.dts b/tools/binman/test/31_x86-rom-me.dts
new file mode 100644
index 0000000..b484ab3
--- /dev/null
+++ b/tools/binman/test/31_x86-rom-me.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <0x800000>;
+ intel-descriptor {
+ };
+
+ intel-me {
+ pos-unset;
+ };
+ };
+};
diff --git a/tools/binman/test/32_intel-vga.dts b/tools/binman/test/32_intel-vga.dts
new file mode 100644
index 0000000..1790833
--- /dev/null
+++ b/tools/binman/test/32_intel-vga.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ size = <16>;
+
+ intel-vga {
+ };
+ };
+};
diff --git a/tools/binman/test/33_x86-start16.dts b/tools/binman/test/33_x86-start16.dts
new file mode 100644
index 0000000..2e279de
--- /dev/null
+++ b/tools/binman/test/33_x86-start16.dts
@@ -0,0 +1,13 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ size = <16>;
+
+ x86-start16 {
+ };
+ };
+};
diff --git a/tools/binman/test/34_x86_ucode.dts b/tools/binman/test/34_x86_ucode.dts
new file mode 100644
index 0000000..64a6c2c
--- /dev/null
+++ b/tools/binman/test/34_x86_ucode.dts
@@ -0,0 +1,29 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <0x200>;
+ u-boot-with-ucode-ptr {
+ };
+
+ u-boot-dtb-with-ucode {
+ };
+
+ u-boot-ucode {
+ };
+ };
+
+ microcode {
+ update at 0 {
+ data = <0x12345678 0x12345679>;
+ };
+ update at 1 {
+ data = <0xabcd0000 0x78235609>;
+ };
+ };
+};
diff --git a/tools/binman/test/35_x86_single_ucode.dts b/tools/binman/test/35_x86_single_ucode.dts
new file mode 100644
index 0000000..973e97f
--- /dev/null
+++ b/tools/binman/test/35_x86_single_ucode.dts
@@ -0,0 +1,26 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <0x200>;
+ u-boot-with-ucode-ptr {
+ };
+
+ u-boot-dtb-with-ucode {
+ };
+
+ u-boot-ucode {
+ };
+ };
+
+ microcode {
+ update at 0 {
+ data = <0x12345678 0x12345679>;
+ };
+ };
+};
diff --git a/tools/binman/test/u_boot_ucode_ptr b/tools/binman/test/u_boot_ucode_ptr
new file mode 100755
index 0000000000000000000000000000000000000000..dbfb184cecfbcf55cf43ed4f4ac0ee90a7364d93
GIT binary patch
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z?c~ddtBklhOXCp#9(;g{)Q?Fq+c>PTU-d6wo4~YvUz*V$GtcEfbjfs-ZCgXv9QLkU
KGKbO{NcskUZF7hK
literal 0
HcmV?d00001
diff --git a/tools/binman/test/u_boot_ucode_ptr.c b/tools/binman/test/u_boot_ucode_ptr.c
new file mode 100644
index 0000000..434c9f4
--- /dev/null
+++ b/tools/binman/test/u_boot_ucode_ptr.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Simple program to create a _dt_ucode_base_size symbol which can be read
+ * by 'nm'. This is used by binman tests.
+ *
+ * Build with:
+ * cc -march=i386 -m32 -o u_boot_ucode_ptr -T u_boot_ucode_ptr.lds -nostdlib \
+ u_boot_ucode_ptr.c
+ */
+
+static unsigned long _dt_ucode_base_size[2]
+ __attribute__((section(".ucode"))) = {1, 2};
diff --git a/tools/binman/test/u_boot_ucode_ptr.lds b/tools/binman/test/u_boot_ucode_ptr.lds
new file mode 100644
index 0000000..167debf
--- /dev/null
+++ b/tools/binman/test/u_boot_ucode_ptr.lds
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+
+SECTIONS
+{
+ . = 0xfffffdf0;
+ _start = .;
+ .ucode : {
+ *(.ucode)
+ }
+}
--
2.8.0.rc3.226.g39d4020
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