[U-Boot] [PATCH 29/31] binman: Correct fmap output on x86
Simon Glass
sjg at chromium.org
Fri Sep 14 10:57:34 UTC 2018
Normally x86 platforms use the end-at-4gb option. This currently produces
an FMAP with positions which have a large offset. The use of end-at-4gb is
a useful convenience within binman, but we don't really want to export
a map with these offsets.
Fix this by subtracting the 'skip at start' parameter.
Also put the code which convers names to fmap format, for clarity.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
tools/binman/bsection.py | 18 +++++++--
tools/binman/entry.py | 3 +-
tools/binman/etype/fmap.py | 11 +++--
tools/binman/etype/u_boot_with_ucode_ptr.py | 12 +++---
tools/binman/fmap_util.py | 6 ++-
tools/binman/ftest.py | 45 +++++++++++++++++++++
tools/binman/test/94_fmap_x86.dts | 20 +++++++++
tools/binman/test/95_fmap_x86_section.dts | 22 ++++++++++
8 files changed, 121 insertions(+), 16 deletions(-)
create mode 100644 tools/binman/test/94_fmap_x86.dts
create mode 100644 tools/binman/test/95_fmap_x86_section.dts
diff --git a/tools/binman/bsection.py b/tools/binman/bsection.py
index e4c1900b17f..c208029c25b 100644
--- a/tools/binman/bsection.py
+++ b/tools/binman/bsection.py
@@ -68,6 +68,7 @@ class Section(object):
self._end_4gb = False
self._name_prefix = ''
self._entries = OrderedDict()
+ self._image_pos = None
if not test:
self._ReadNode()
self._ReadEntries()
@@ -124,7 +125,10 @@ class Section(object):
def SetCalculatedProperties(self):
state.SetInt(self._node, 'offset', self._offset)
state.SetInt(self._node, 'size', self._size)
- state.SetInt(self._node, 'image-pos', self._image_pos)
+ image_pos = self._image_pos
+ if self._parent_section:
+ image_pos -= self._parent_section.GetRootSkipAtStart()
+ state.SetInt(self._node, 'image-pos', image_pos)
for entry in self._entries.values():
entry.SetCalculatedProperties()
@@ -437,11 +441,17 @@ class Section(object):
source_entry.Raise("Cannot find node for phandle %d" % phandle)
for entry in self._entries.values():
if entry._node == node:
- if entry.data is None:
- return None
- return entry.data
+ return entry.GetData()
source_entry.Raise("Cannot find entry for node '%s'" % node.name)
def ExpandSize(self, size):
if size != self._size:
self._size = size
+
+ def GetRootSkipAtStart(self):
+ if self._parent_section:
+ return self._parent_section.GetRootSkipAtStart()
+ return self._skip_at_start
+
+ def GetImageSize(self):
+ return self._image._size
diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index fd7223477eb..01be291b709 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -197,7 +197,8 @@ class Entry(object):
"""Set the value of device-tree properties calculated by binman"""
state.SetInt(self._node, 'offset', self.offset)
state.SetInt(self._node, 'size', self.size)
- state.SetInt(self._node, 'image-pos', self.image_pos)
+ state.SetInt(self._node, 'image-pos',
+ self.image_pos - self.section.GetRootSkipAtStart())
state.CheckSetHashValue(self._node, self.GetData)
def ProcessFdt(self, fdt):
diff --git a/tools/binman/etype/fmap.py b/tools/binman/etype/fmap.py
index f1dd81ec493..bf35a5bbf4e 100644
--- a/tools/binman/etype/fmap.py
+++ b/tools/binman/etype/fmap.py
@@ -42,14 +42,17 @@ class Entry_fmap(Entry):
for subentry in entries.values():
_AddEntries(areas, subentry)
else:
- areas.append(fmap_util.FmapArea(entry.image_pos or 0,
- entry.size or 0, entry.name, 0))
+ pos = entry.image_pos
+ if pos is not None:
+ pos -= entry.section.GetRootSkipAtStart()
+ areas.append(fmap_util.FmapArea(pos or 0, entry.size or 0,
+ entry.name, 0))
- entries = self.section.GetEntries()
+ entries = self.section._image.GetEntries()
areas = []
for entry in entries.values():
_AddEntries(areas, entry)
- return fmap_util.EncodeFmap(self.section.GetSize() or 0, self.name,
+ return fmap_util.EncodeFmap(self.section.GetImageSize() or 0, self.name,
areas)
def ObtainContents(self):
diff --git a/tools/binman/etype/u_boot_with_ucode_ptr.py b/tools/binman/etype/u_boot_with_ucode_ptr.py
index 01f3513e7d3..da0e12417b5 100644
--- a/tools/binman/etype/u_boot_with_ucode_ptr.py
+++ b/tools/binman/etype/u_boot_with_ucode_ptr.py
@@ -66,11 +66,11 @@ class Entry_u_boot_with_ucode_ptr(Entry_blob):
# the U-Boot region must start at offset 7MB in the section. In this
# case the ROM starts at 0xff800000, so the offset of the first
# entry in the section corresponds to that.
- if (self.target_offset < self.offset or
- self.target_offset >= self.offset + self.size):
- self.Raise('Microcode pointer _dt_ucode_base_size at %08x is '
- 'outside the section ranging from %08x to %08x' %
- (self.target_offset, self.offset, self.offset + self.size))
+ if (self.target_offset < self.image_pos or
+ self.target_offset >= self.image_pos + self.size):
+ self.Raise('Microcode pointer _dt_ucode_base_size at %08x is outside the section ranging from %08x to %08x' %
+ (self.target_offset, self.image_pos,
+ self.image_pos + self.size))
# Get the microcode, either from u-boot-ucode or u-boot-dtb-with-ucode.
# If we have left the microcode in the device tree, then it will be
@@ -90,7 +90,7 @@ class Entry_u_boot_with_ucode_ptr(Entry_blob):
# Write the microcode offset and size into the entry
offset_and_size = struct.pack('<2L', offset, size)
- self.target_offset -= self.offset
+ self.target_offset -= self.image_pos
self.ProcessContentsUpdate(self.data[:self.target_offset] +
offset_and_size +
self.data[self.target_offset + 8:])
diff --git a/tools/binman/fmap_util.py b/tools/binman/fmap_util.py
index 7d520e33919..be3cbee87bd 100644
--- a/tools/binman/fmap_util.py
+++ b/tools/binman/fmap_util.py
@@ -49,6 +49,9 @@ FmapHeader = collections.namedtuple('FmapHeader', FMAP_HEADER_NAMES)
FmapArea = collections.namedtuple('FmapArea', FMAP_AREA_NAMES)
+def NameToFmap(name):
+ return name.replace('\0', '').replace('-', '_').upper()
+
def ConvertName(field_names, fields):
"""Convert a name to something flashrom likes
@@ -62,7 +65,7 @@ def ConvertName(field_names, fields):
value: value of that field (string for the ones we support)
"""
name_index = field_names.index('name')
- fields[name_index] = fields[name_index].replace('\0', '').replace('-', '_').upper()
+ fields[name_index] = NameToFmap(fields[name_index])
def DecodeFmap(data):
"""Decode a flashmap into a header and list of areas
@@ -100,6 +103,7 @@ def EncodeFmap(image_size, name, areas):
"""
def _FormatBlob(fmt, names, obj):
params = [getattr(obj, name) for name in names]
+ ConvertName(names, params)
return struct.pack(fmt, *params)
values = FmapHeader(FMAP_SIGNATURE, 1, 0, 0, image_size, name, len(areas))
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 2a9eea2a499..ff934d02222 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -1664,6 +1664,51 @@ class TestFunctional(unittest.TestCase):
self.assertEqual('tplnodtb with microc' + pos_and_size +
'ter somewhere in here', first)
+ def testFmapX86(self):
+ """Basic test of generation of a flashrom fmap"""
+ data = self._DoReadFile('94_fmap_x86.dts')
+ fhdr, fentries = fmap_util.DecodeFmap(data[32:])
+ expected = U_BOOT_DATA + MRC_DATA + 'a' * (32 - 7)
+ self.assertEqual(expected, data[:32])
+ fhdr, fentries = fmap_util.DecodeFmap(data[32:])
+
+ self.assertEqual(0x100, fhdr.image_size)
+
+ self.assertEqual(0, fentries[0].offset)
+ self.assertEqual(4, fentries[0].size)
+ self.assertEqual('U_BOOT', fentries[0].name)
+
+ self.assertEqual(4, fentries[1].offset)
+ self.assertEqual(3, fentries[1].size)
+ self.assertEqual('INTEL_MRC', fentries[1].name)
+
+ self.assertEqual(32, fentries[2].offset)
+ self.assertEqual(fmap_util.FMAP_HEADER_LEN +
+ fmap_util.FMAP_AREA_LEN * 3, fentries[2].size)
+ self.assertEqual('FMAP', fentries[2].name)
+
+ def testFmapX86Section(self):
+ """Basic test of generation of a flashrom fmap"""
+ data = self._DoReadFile('95_fmap_x86_section.dts')
+ expected = U_BOOT_DATA + MRC_DATA + 'b' * (32 - 7)
+ self.assertEqual(expected, data[:32])
+ fhdr, fentries = fmap_util.DecodeFmap(data[36:])
+
+ self.assertEqual(0x100, fhdr.image_size)
+
+ self.assertEqual(0, fentries[0].offset)
+ self.assertEqual(4, fentries[0].size)
+ self.assertEqual('U_BOOT', fentries[0].name)
+
+ self.assertEqual(4, fentries[1].offset)
+ self.assertEqual(3, fentries[1].size)
+ self.assertEqual('INTEL_MRC', fentries[1].name)
+
+ self.assertEqual(36, fentries[2].offset)
+ self.assertEqual(fmap_util.FMAP_HEADER_LEN +
+ fmap_util.FMAP_AREA_LEN * 3, fentries[2].size)
+ self.assertEqual('FMAP', fentries[2].name)
+
if __name__ == "__main__":
unittest.main()
diff --git a/tools/binman/test/94_fmap_x86.dts b/tools/binman/test/94_fmap_x86.dts
new file mode 100644
index 00000000000..613c5dab425
--- /dev/null
+++ b/tools/binman/test/94_fmap_x86.dts
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ end-at-4gb;
+ size = <0x100>;
+ pad-byte = <0x61>;
+ u-boot {
+ };
+ intel-mrc {
+ };
+ fmap {
+ offset = <0xffffff20>;
+ };
+ };
+};
diff --git a/tools/binman/test/95_fmap_x86_section.dts b/tools/binman/test/95_fmap_x86_section.dts
new file mode 100644
index 00000000000..4cfce456705
--- /dev/null
+++ b/tools/binman/test/95_fmap_x86_section.dts
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ end-at-4gb;
+ size = <0x100>;
+ u-boot {
+ };
+ section {
+ pad-byte = <0x62>;
+ intel-mrc {
+ };
+ fmap {
+ offset = <0x20>;
+ };
+ };
+ };
+};
--
2.19.0.397.gdd90340f6a-goog
More information about the U-Boot
mailing list