[U-Boot] [PATCH v4 05/11] binman: Add support for building x86 ROMs with SPL
Simon Glass
sjg at chromium.org
Thu Oct 6 22:59:36 CEST 2016
When building for 64-bit x86 we need an SPL binary in the ROM. Add support
for this. Also increase entry test code coverage to 100%.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
tools/binman/etype/u_boot_spl_bss_pad.py | 26 +++++++++
tools/binman/etype/u_boot_spl_with_ucode_ptr.py | 28 +++++++++
tools/binman/etype/x86_start16_spl.py | 17 ++++++
tools/binman/func_test.py | 71 +++++++++++++++++++++++
tools/binman/test/37_x86_no_ucode.dts | 20 +++++++
tools/binman/test/38_x86_ucode_missing_node.dts | 26 +++++++++
tools/binman/test/39_x86_ucode_missing_node2.dts | 23 ++++++++
tools/binman/test/40_x86_ucode_not_in_image.dts | 28 +++++++++
tools/binman/test/41_unknown_pos_size.dts | 11 ++++
tools/binman/test/u_boot_no_ucode_ptr | Bin 0 -> 4182 bytes
tools/binman/test/u_boot_no_ucode_ptr.c | 15 +++++
11 files changed, 265 insertions(+)
create mode 100644 tools/binman/etype/u_boot_spl_bss_pad.py
create mode 100644 tools/binman/etype/u_boot_spl_with_ucode_ptr.py
create mode 100644 tools/binman/etype/x86_start16_spl.py
create mode 100644 tools/binman/test/37_x86_no_ucode.dts
create mode 100644 tools/binman/test/38_x86_ucode_missing_node.dts
create mode 100644 tools/binman/test/39_x86_ucode_missing_node2.dts
create mode 100644 tools/binman/test/40_x86_ucode_not_in_image.dts
create mode 100644 tools/binman/test/41_unknown_pos_size.dts
create mode 100755 tools/binman/test/u_boot_no_ucode_ptr
create mode 100644 tools/binman/test/u_boot_no_ucode_ptr.c
diff --git a/tools/binman/etype/u_boot_spl_bss_pad.py b/tools/binman/etype/u_boot_spl_bss_pad.py
new file mode 100644
index 0000000..c005f28
--- /dev/null
+++ b/tools/binman/etype/u_boot_spl_bss_pad.py
@@ -0,0 +1,26 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for BSS padding for spl/u-boot-spl.bin. This padding
+# can be added after the SPL binary to ensure that anything concatenated
+# to it will appear to SPL to be at the end of BSS rather than the start.
+#
+
+import command
+from entry import Entry
+from blob import Entry_blob
+import tools
+
+class Entry_u_boot_spl_bss_pad(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def ObtainContents(self):
+ fname = tools.GetInputFilename('spl/u-boot-spl')
+ args = [['nm', fname], ['grep', '__bss_size']]
+ out = command.RunPipe(args, capture=True).stdout.splitlines()
+ bss_size = int(out[0].split()[0], 16)
+ self.data = chr(0) * bss_size
+ self.contents_size = bss_size
diff --git a/tools/binman/etype/u_boot_spl_with_ucode_ptr.py b/tools/binman/etype/u_boot_spl_with_ucode_ptr.py
new file mode 100644
index 0000000..764c282
--- /dev/null
+++ b/tools/binman/etype/u_boot_spl_with_ucode_ptr.py
@@ -0,0 +1,28 @@
+# Copyright (c) 2016 Google, Inc
+# Written by Simon Glass <sjg at chromium.org>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Entry-type module for an SPL binary with an embedded microcode pointer
+#
+
+import struct
+
+import command
+from entry import Entry
+from blob import Entry_blob
+from u_boot_with_ucode_ptr import Entry_u_boot_with_ucode_ptr
+import tools
+
+class Entry_u_boot_spl_with_ucode_ptr(Entry_u_boot_with_ucode_ptr):
+ """U-Boot SPL with embedded microcode pointer
+
+ See Entry_u_boot_ucode for full details of the entries involved in this
+ process.
+ """
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+ self.elf_fname = 'spl/u-boot-spl'
+
+ def GetDefaultFilename(self):
+ return 'spl/u-boot-spl.bin'
diff --git a/tools/binman/etype/x86_start16_spl.py b/tools/binman/etype/x86_start16_spl.py
new file mode 100644
index 0000000..3679a43
--- /dev/null
+++ b/tools/binman/etype/x86_start16_spl.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 SPL
+#
+
+from entry import Entry
+from blob import Entry_blob
+
+class Entry_x86_start16_spl(Entry_blob):
+ def __init__(self, image, etype, node):
+ Entry_blob.__init__(self, image, etype, node)
+
+ def GetDefaultFilename(self):
+ return 'spl/u-boot-x86-16bit-spl.bin'
diff --git a/tools/binman/func_test.py b/tools/binman/func_test.py
index e36d7bd..3202947 100644
--- a/tools/binman/func_test.py
+++ b/tools/binman/func_test.py
@@ -686,7 +686,78 @@ class TestFunctional(unittest.TestCase):
self.assertEqual('nodtb with microcode' + pos_and_size +
' somewhere in here', first)
+ def testPackUbootSingleMicrocode(self):
+ """Test that x86 microcode can be handled correctly with fdt_normal.
+ """
+ self._RunPackUbootSingleMicrocode(False)
+
+ def testPackUbootSingleMicrocodeFallback(self):
+ """Test that x86 microcode can be handled correctly with fdt_fallback.
+
+ This only supports collating the microcode.
+ """
+ try:
+ old_val = fdt_select.UseFallback(True)
+ self._RunPackUbootSingleMicrocode(True)
+ finally:
+ fdt_select.UseFallback(old_val)
+
def testUBootImg(self):
"""Test that u-boot.img can be put in a file"""
data = self._DoReadFile('36_u_boot_img.dts')
self.assertEqual(U_BOOT_IMG_DATA, data)
+
+ def testNoMicrocode(self):
+ """Test that a missing microcode region is detected"""
+ with self.assertRaises(ValueError) as e:
+ self._DoReadFile('37_x86_no_ucode.dts', True)
+ self.assertIn("Node '/binman/u-boot-dtb-with-ucode': No /microcode "
+ "node found in ", str(e.exception))
+
+ def testMicrocodeWithoutNode(self):
+ """Test that a missing u-boot-dtb-with-ucode node is detected"""
+ with self.assertRaises(ValueError) as e:
+ self._DoReadFile('38_x86_ucode_missing_node.dts', True)
+ self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot find "
+ "microcode region u-boot-dtb-with-ucode", str(e.exception))
+
+ def testMicrocodeWithoutNode2(self):
+ """Test that a missing u-boot-ucode node is detected"""
+ with self.assertRaises(ValueError) as e:
+ self._DoReadFile('39_x86_ucode_missing_node2.dts', True)
+ self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot find "
+ "microcode region u-boot-ucode", str(e.exception))
+
+ def testMicrocodeWithoutPtrInElf(self):
+ """Test that a U-Boot binary without the microcode symbol is detected"""
+ # ELF file without a '_dt_ucode_base_size' symbol
+ if not fdt_select.have_libfdt:
+ return
+ try:
+ with open(self.TestFile('u_boot_no_ucode_ptr')) as fd:
+ TestFunctional._MakeInputFile('u-boot', fd.read())
+
+ with self.assertRaises(ValueError) as e:
+ self._RunPackUbootSingleMicrocode(False)
+ self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Cannot locate "
+ "_dt_ucode_base_size symbol in u-boot", str(e.exception))
+
+ finally:
+ # Put the original file back
+ with open(self.TestFile('u_boot_ucode_ptr')) as fd:
+ TestFunctional._MakeInputFile('u-boot', fd.read())
+
+ def testMicrocodeNotInImage(self):
+ """Test that microcode must be placed within the image"""
+ with self.assertRaises(ValueError) as e:
+ self._DoReadFile('40_x86_ucode_not_in_image.dts', True)
+ self.assertIn("Node '/binman/u-boot-with-ucode-ptr': Microcode "
+ "pointer _dt_ucode_base_size at fffffe14 is outside the "
+ "image ranging from 00000000 to 0000002e", str(e.exception))
+
+ def testUnknownPosSize(self):
+ """Test that microcode must be placed within the image"""
+ with self.assertRaises(ValueError) as e:
+ self._DoReadFile('41_unknown_pos_size.dts', True)
+ self.assertIn("Image '/binman': Unable to set pos/size for unknown "
+ "entry 'invalid-entry'", str(e.exception))
diff --git a/tools/binman/test/37_x86_no_ucode.dts b/tools/binman/test/37_x86_no_ucode.dts
new file mode 100644
index 0000000..9e12156
--- /dev/null
+++ b/tools/binman/test/37_x86_no_ucode.dts
@@ -0,0 +1,20 @@
+/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 {
+ };
+ };
+};
diff --git a/tools/binman/test/38_x86_ucode_missing_node.dts b/tools/binman/test/38_x86_ucode_missing_node.dts
new file mode 100644
index 0000000..d6cf0d8
--- /dev/null
+++ b/tools/binman/test/38_x86_ucode_missing_node.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-ucode {
+ };
+ };
+
+ microcode {
+ update at 0 {
+ data = <0x12345678 0x12345679>;
+ };
+ update at 1 {
+ data = <0xabcd0000 0x78235609>;
+ };
+ };
+};
diff --git a/tools/binman/test/39_x86_ucode_missing_node2.dts b/tools/binman/test/39_x86_ucode_missing_node2.dts
new file mode 100644
index 0000000..b7e26c5
--- /dev/null
+++ b/tools/binman/test/39_x86_ucode_missing_node2.dts
@@ -0,0 +1,23 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ end-at-4gb;
+ size = <0x200>;
+ u-boot-with-ucode-ptr {
+ };
+ };
+
+ microcode {
+ update at 0 {
+ data = <0x12345678 0x12345679>;
+ };
+ update at 1 {
+ data = <0xabcd0000 0x78235609>;
+ };
+ };
+};
diff --git a/tools/binman/test/40_x86_ucode_not_in_image.dts b/tools/binman/test/40_x86_ucode_not_in_image.dts
new file mode 100644
index 0000000..67d17d3
--- /dev/null
+++ b/tools/binman/test/40_x86_ucode_not_in_image.dts
@@ -0,0 +1,28 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ sort-by-pos;
+ 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/41_unknown_pos_size.dts b/tools/binman/test/41_unknown_pos_size.dts
new file mode 100644
index 0000000..a8e7d8a
--- /dev/null
+++ b/tools/binman/test/41_unknown_pos_size.dts
@@ -0,0 +1,11 @@
+/dts-v1/;
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ binman {
+ _testing {
+ };
+ };
+};
diff --git a/tools/binman/test/u_boot_no_ucode_ptr b/tools/binman/test/u_boot_no_ucode_ptr
new file mode 100755
index 0000000000000000000000000000000000000000..f72462f0be41a934d468481bf627d6c1ec9a8e1c
GIT binary patch
literal 4182
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z at qDp8do$uXBd$)<SgrCAe1MC at kC)<YW3|P8-9L+IBF7Cw=>(xO`84NJ_C$;LPaVgT
TQ=i-H`%b?z at X6`RW>3;L6WVxU
literal 0
HcmV?d00001
diff --git a/tools/binman/test/u_boot_no_ucode_ptr.c b/tools/binman/test/u_boot_no_ucode_ptr.c
new file mode 100644
index 0000000..a17bb4c
--- /dev/null
+++ b/tools/binman/test/u_boot_no_ucode_ptr.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2016 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * Simple program to create a bad _dt_ucode_base_size symbol to create an
+ * error when it is used. This is used by binman tests.
+ *
+ * Build with:
+ * cc -march=i386 -m32 -o u_boot_no_ucode_ptr -T u_boot_ucode_ptr.lds \
+ -nostdlib u_boot_no_ucode_ptr.c
+ */
+
+static unsigned long not__dt_ucode_base_size[2]
+ __attribute__((section(".ucode"))) = {1, 2};
--
2.8.0.rc3.226.g39d4020
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