{"id":2233068,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2233068/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/20260505-b4-qcom-tooling-improvements-v6-3-a5fb673f4af6@linaro.org/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.2/projects/18/?format=json","name":"U-Boot","link_name":"uboot","list_id":"u-boot.lists.denx.de","list_email":"u-boot@lists.denx.de","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260505-b4-qcom-tooling-improvements-v6-3-a5fb673f4af6@linaro.org>","list_archive_url":null,"date":"2026-05-05T15:48:43","name":"[v6,3/6] tools: qcom: add mkmbn.py","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"6e245b335de88575abaf57016846a124f915ef5d","submitter":{"id":90679,"url":"http://patchwork.ozlabs.org/api/1.2/people/90679/?format=json","name":"Casey Connolly","email":"casey.connolly@linaro.org"},"delegate":{"id":151538,"url":"http://patchwork.ozlabs.org/api/1.2/users/151538/?format=json","username":"kcxt","first_name":"Casey","last_name":"Connolly","email":"casey.connolly@linaro.org"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/20260505-b4-qcom-tooling-improvements-v6-3-a5fb673f4af6@linaro.org/mbox/","series":[{"id":502858,"url":"http://patchwork.ozlabs.org/api/1.2/series/502858/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=502858","date":"2026-05-05T15:48:40","name":"Qualcomm: teach the build system to emit signed ELF images","version":6,"mbox":"http://patchwork.ozlabs.org/series/502858/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2233068/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2233068/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=lNYJSkZZ;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"\n <20260505-b4-qcom-tooling-improvements-v6-3-a5fb673f4af6@linaro.org>","References":"\n <20260505-b4-qcom-tooling-improvements-v6-0-a5fb673f4af6@linaro.org>","In-Reply-To":"\n <20260505-b4-qcom-tooling-improvements-v6-0-a5fb673f4af6@linaro.org>","To":"u-boot@lists.denx.de, Sumit Garg ,\n u-boot-qcom@groups.io","Cc":"Tom Rini ,\n Casey Connolly ,\n Neil Armstrong ,\n Balaji Selvanathan ,\n Varadarajan Narayanan ,\n Quentin Schulz ,\n Heinrich Schuchardt ,\n Marek Vasut , Peng Fan ,\n Jaehoon Chung ,\n Aswin Murugan ,\n Ilias Apalodimas ,\n Michal Simek , David Lechner ","X-Mailer":"b4 0.16-dev","X-Developer-Signature":"v=1; a=openpgp-sha256; l=8765;\n i=casey.connolly@linaro.org; h=from:subject:message-id;\n bh=qCCeU0T4p3Hzlzl8XWJ8BchZ+6/KH/zL9+4V1EWTcOk=;\n b=owGbwMvMwCFYaeA6f6eBkTjjabUkhsxfgrFTnUuWP4v7sLb9lGm++uNJ0yMy5Lab8XPFeH0LY\n 5q75MqGjlIWBkEOBlkxRRbxE8ssm9ZettfYvuACzBxWJpAhDFycAjCRHYqMDPPylAxSnWWZPa68\n mM6c8a2GS7Vs6va1D/ccZn+ZPu13ui8jw+QPjYJZSqa8rsxFUm9YOYOPpvOGnjFlu6f58OrWNqP\n VFwE=","X-Developer-Key":"i=casey.connolly@linaro.org; a=openpgp;\n fpr=83B24DA7FE145076BC38BB250CD904EB673A7C47","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"Adjust the elf class to support creating ELF files from scratch so that\nmkmbn can build an MBN file from the U-Boot binary image and fix some\nimports to work correctly in the U-Boot build system.\n\nThe new tool inspects the DTB embedded in u-boot.bin and uses a lookup\ntable to determine the appropriate configuration based on the root\ncompatible property, effectively encoding the info that was previously\nkept in documentation.\n\nSigned-off-by: Casey Connolly \n---\n tools/mkmbn | 1 +\n tools/qcom/mkmbn/elf.py | 36 ++++++++++\n tools/qcom/mkmbn/hashseg.py | 4 +-\n tools/qcom/mkmbn/mkmbn.py | 165 ++++++++++++++++++++++++++++++++++++++++++++\n 4 files changed, 204 insertions(+), 2 deletions(-)","diff":"diff --git a/tools/mkmbn b/tools/mkmbn\nnew file mode 120000\nindex 000000000000..a7b2096756f7\n--- /dev/null\n+++ b/tools/mkmbn\n@@ -0,0 +1 @@\n+qcom/mkmbn/mkmbn.py\n\\ No newline at end of file\ndiff --git a/tools/qcom/mkmbn/elf.py b/tools/qcom/mkmbn/elf.py\nindex a5c4dad5ee01..4bd54239fbbe 100644\n--- a/tools/qcom/mkmbn/elf.py\n+++ b/tools/qcom/mkmbn/elf.py\n@@ -44,8 +44,24 @@ class Ehdr:\n \n \tCLASS32 = 1\n \tCLASS64 = 2\n \n+\t# Init a qcom XBL style ELF header\n+\tdef __init__(self):\n+\t\tself.ei_magic = b\"\\x7fELF\"\n+\t\tself.ei_class = 2\n+\t\tself.ei_data = 1\n+\t\tself.ei_version = 1\n+\t\tself.ei_os_abi = 0\n+\t\tself.ei_abi_version = 0\n+\t\tself.e_type = 2\n+\t\tself.e_machine = 183\n+\t\tself.e_version = 1\n+\n+\t\tself.e_ehsize = 64\n+\t\tself.e_phoff = 64\n+\t\tself.e_phentsize = 56\n+\n \t@staticmethod\n \tdef parse(b: bytes) -> Ehdr:\n \t\thdr_unpack = Ehdr.START_FORMAT.unpack_from(b)\n \t\thdr = Ehdr(*hdr_unpack)\n@@ -109,8 +125,24 @@ class Phdr:\n \t\t\tunpack.insert(-1, flags)\n \n \t\treturn Phdr(*unpack)\n \n+\t@staticmethod\n+\tdef from_bin(b: bytes, loadaddr: int) -> Phdr:\n+\t\t# p_offset is fixed later\n+\t\tphdr = Phdr(\n+\t\t\tp_type=1,\n+\t\t\tp_offset=0xFFFFFFFF,\n+\t\t\tp_vaddr=loadaddr,\n+\t\t\tp_paddr=loadaddr,\n+\t\t\tp_filesz=len(b),\n+\t\t\tp_memsz=len(b),\n+\t\t\tp_flags=7,\n+\t\t\tp_align=0x1000,\n+\t\t)\n+\t\tphdr.data = memoryview(b)\n+\t\treturn phdr\n+\n \tdef save(self, f: BinaryIO, ei_class: int) -> int:\n \t\tunpack = dataclasses.astuple(self)\n \n \t\tif ei_class == Ehdr.CLASS32:\n@@ -142,8 +174,12 @@ def align(i: int, alignment: int) -> int:\n class Elf:\n \tehdr: Ehdr\n \tphdrs: List[Phdr]\n \n+\tdef __init__(self):\n+\t\tself.ehdr = Ehdr()\n+\t\tself.phdrs: List[Phdr] = []\n+\n \tdef total_header_size(self):\n \t\treturn self.ehdr.e_phoff + len(self.phdrs) * self.ehdr.e_phentsize\n \n \t@staticmethod\ndiff --git a/tools/qcom/mkmbn/hashseg.py b/tools/qcom/mkmbn/hashseg.py\nindex fe74761ae8df..db157a23d186 100644\n--- a/tools/qcom/mkmbn/hashseg.py\n+++ b/tools/qcom/mkmbn/hashseg.py\n@@ -14,10 +14,10 @@ import hashlib\n from dataclasses import dataclass\n from io import BytesIO\n from struct import Struct\n \n-from . import cert\n-from . import elf\n+import cert\n+import elf\n \n # A typical Qualcomm firmware might have the following program headers:\n # LOAD off 0x00000800 vaddr 0x86400000 paddr 0x86400000 align 2**11\n # filesz 0x00001000 memsz 0x00001000 flags rwx\ndiff --git a/tools/qcom/mkmbn/mkmbn.py b/tools/qcom/mkmbn/mkmbn.py\nnew file mode 100755\nindex 000000000000..e4484b539b02\n--- /dev/null\n+++ b/tools/qcom/mkmbn/mkmbn.py\n@@ -0,0 +1,165 @@\n+#!/usr/bin/env python3\n+# SPDX-License-Identifier: GPL-2.0-only\n+# Copyright (C) 2024 Stephan Gerhold\n+# Copyright (C) 2026 Casey Connolly\n+#\n+# This is a port of qtestsign designed to integrate with the\n+# U-Boot build system. See the qtestsign repo for more information.\n+# https://github.com/msm8916-mainline/qtestsign\n+#\n+from __future__ import annotations\n+\n+import argparse\n+from pathlib import Path\n+\n+from elf import Elf, Phdr\n+import hashseg\n+import sys\n+from enum import Enum\n+import struct\n+\n+verbose = False\n+\n+def log(*args, **kwargs):\n+ if verbose:\n+ print(*args, *kwargs, file=sys.stderr)\n+\n+def error(*args, **kwargs):\n+ print(\"mkmbn: \", file=sys.stderr, end='')\n+ print(*args, *kwargs, file=sys.stderr)\n+\n+class SwId(Enum):\n+ sbl1 = 0x00\n+ mba = 0x01\n+ modem = 0x02\n+ prog = 0x03\n+ adsp = 0x04\n+ devcfg = 0x05\n+ tz = 0x07\n+ aboot = 0x09\n+ uefi = 0x09\n+ rpm = 0x0A\n+ tz_app = 0x0C\n+ wcnss = 0x0D\n+ venus = 0x0E\n+ wlanmdsp = 0x12\n+ gpu = 0x14\n+ hyp = 0x15\n+ cdsp = 0x17\n+ slpi = 0x18\n+ abl = 0x1C\n+ cmnlib = 0x1F\n+ aop = 0x21\n+ qup = 0x24\n+ xbl_config = 0x25\n+\n+class MbnData:\n+\n+ # sw_id 0x9 is aboot/uefi, the most common\n+ def __init__(self, loadaddr: int, version: int, sw_id: SwId = SwId.aboot):\n+ self.loadaddr = loadaddr\n+ self.version = version\n+ self.sw_id = sw_id\n+\n+\n+\"\"\"\n+This dictionary is used to map a board or platform to the appropriate load address and\n+other MBN metadata. When adding support for a new platform to U-Boot, the appropriate\n+data should be filled out here. The load address can typically be determined by looking\n+at the uefi.elf or xbl.elf for the platform. For the uefi.elf it is the load address, and\n+for xbl.elf it is typically the RWX section in the middle, just BEFORE the section loaded\n+at 0x1495xxxx or similar. Looking at similar platforms in the table below may help.\n+\"\"\"\n+boards: dict[bytes, MbnData] = {\n+ # Exact matches for boards, these are preferred\n+ b\"qcom,qcs6490-rb3gen2\\0\": MbnData(0x9FC00000, 6, SwId.uefi),\n+ b\"qcom,qcs9100-ride-r3\\0\": MbnData(0xAF000000, 6, SwId.uefi), # Dragonwing IQ9\n+ b\"qcom,qcs8300-ride\\0\": MbnData(0xAF000000, 6, SwId.uefi), # Dragonwing IQ8\n+ b\"qcom,qcs615-ride\\0\": MbnData(0x9FC00000, 6, SwId.uefi), # Dragonwing IQ6\n+ # Fallback/generic matches since most boards for a platform will\n+ # use the same load address\n+ b\"qcom,qcm6490\\0\": MbnData(0x9FC00000, 6, SwId.uefi), # rb3gen2, rubikpi3\n+ b\"qcom,qcs9100\\0\": MbnData(0xAF000000, 6, SwId.uefi), # Dragonwing IQ9\n+ b\"qcom,qcs8300\\0\": MbnData(0xAF000000, 6, SwId.uefi), # Dragonwing IQ8\n+ b\"qcom,qcs8550\\0\": MbnData(0xA7000000, 7, SwId.uefi), # C8550\n+ b\"qcom,sm8550\\0\": MbnData(0xA7000000, 7, SwId.uefi), # C8550\n+ b\"qcom,sm8650\\0\": MbnData(0xA7000000, 7, SwId.uefi), # SM8650\n+ b\"qcom,qcs615\\0\": MbnData(0x9FC00000, 6, SwId.uefi), # Dragonwing IQ6\n+ b\"qcom,ipq5424\\0\": MbnData(0x8a380000, 6, SwId.aboot),\n+ b\"qcom,ipq9574\\0\": MbnData(0x4A240000, 6, SwId.aboot),\n+\n+ # msm8916/apq8016 has an \"aboot\" partition but the process is the same\n+ # They use header version 3.\n+ b\"qcom,apq8016\\0\": MbnData(0x8f600000, 3, SwId.aboot),\n+ b\"qcom,msm8916\\0\": MbnData(0x8f600000, 3, SwId.aboot),\n+}\n+\n+parser = argparse.ArgumentParser(\n+ description=\"\"\"\n+\tCreate a signed Qualcomm \"uefi\" ELF image\n+\"\"\"\n+)\n+parser.register(\"type\", \"hex\", lambda s: int(s, 16))\n+parser.add_argument(\n+ \"-o\", \"--output\", type=Path, default=\"u-boot.mbn\", help=\"Output file\"\n+)\n+parser.add_argument(\n+ \"-v\", dest=\"verbose\", action=\"store_true\", default=False, help=\"Verbose\"\n+)\n+parser.add_argument(\n+ \"bin\", type=argparse.FileType(\"rb\"), help=\"Binary to embed (e.g. u-boot.bin)\"\n+)\n+args = parser.parse_args()\n+verbose = args.verbose\n+\n+elf = Elf()\n+\n+data: bytes = args.bin.read()\n+\n+# dtb is at the end, so find the last match\n+dtb_off = 0\n+off = 0\n+dtb_size = 0\n+while True:\n+ off = data.find(b\"\\xd0\\x0d\\xfe\\xed\", dtb_off + dtb_size)\n+ if off == -1:\n+ break\n+ (dtb_size,) = struct.unpack_from(\"I\", data, offset=off)\n+ dtb_off = off\n+\n+if not dtb_off:\n+ print(\"Couldn't find DTB in provided binary!\")\n+ exit(1)\n+\n+log(f\"Found FDT at {dtb_off:#x} size {dtb_size:#x}\")\n+\n+mbn: MbnData|None = None\n+\n+for match, mbndata in boards.items():\n+ if data.find(match, dtb_off) != -1:\n+ mbn = mbndata\n+ break\n+\n+if not mbn:\n+ error(\n+ \"CONFIG_QCOM_GENERATE_MBN is enabled but this platform doesn't appear to be supported\\n\"\n+ \"Please see tools/qcom/mkmbn/mkmbn.py for details. If you intend to chainload U-Boot\\n\"\n+ \"then disregard this message and disable CONFIG_QCOM_GENERATE_MBN in your defconfig.\"\n+ )\n+ args.output.unlink(missing_ok=True)\n+ exit(1)\n+\n+log(f\"Detected board {match.decode('UTF-8')} with load address {mbn.loadaddr:#x}\")\n+\n+elf.phdrs.append(Phdr.from_bin(data, mbn.loadaddr))\n+elf.ehdr.e_entry = mbn.loadaddr\n+elf.update()\n+\n+# QLI boards use v6 sw_id is \"aboot\"\n+hashseg.generate(elf, mbn.version, mbn.sw_id.value)\n+# print(f\"after: {elf}\")\n+\n+with open(args.output, \"wb\") as f:\n+ elf.save(f)\n+\n+log(f\"Built signed MBN: {args.output.resolve()}\")\n","prefixes":["v6","3/6"]}