Framebuffer overrides

Ubuntu.md

@@ -1,8 +1,8 @@
-Name:    linux
-Version: 6.11.0
-Series:  24.10 (oracular)
+Name:    linux-hwe-6.14
+Version: 6.14.0
+Series:  24.04 (noble)
 Description:
-    This is the source code for the Ubuntu linux kernel for the 24.10 series. This
-    source tree is used to produce the flavours: generic, generic-64k, generic-lpae.
+    This is the source code for the Ubuntu hwe-6.14 kernel for the 24.04 series. This
+    source tree is used to produce the flavours: generic, generic-64k.
     This kernel is configured to support the widest range of desktop, laptop and
     server configurations.

debian.hwe-6.14/config/README.rst

@@ -0,0 +1,185 @@
+==================
+Config Annotations
+==================
+
+:Author: Andrea Righi
+
+Overview
+========
+
+Each Ubuntu kernel needs to maintain its own .config for each supported
+architecture and each flavour.
+
+Every time a new patch is applied or a kernel is rebased on top of a new
+one, we need to update the .config's accordingly (config options can be
+added, removed and also renamed).
+
+So, we need to make sure that some critical config options are always
+matching the desired value in order to have a functional kernel.
+
+State of the art
+================
+
+At the moment configs are maintained as a set of Kconfig chunks (inside
+`debian.<kernel>/config/`): a global one, plus per-arch / per-flavour
+chunks.
+
+In addition to that, we need to maintain also a file called
+'annotations'; the purpose of this file is to make sure that some
+critical config options are not silently removed or changed when the
+real .config is re-generated (for example after a rebase or after
+applying a new set of patches).
+
+The main problem with this approach is that, often, we have duplicate
+information that is stored both in the Kconfig chunks *and* in the
+annotations files and, at the same time, the whole .config's information
+is distributed between Kconfig chunks and annotations, making it hard to
+maintain, review and manage in general.
+
+Proposed solution
+=================
+
+The proposed solution is to store all the config information into the
+"annotations" format and get rid of the config chunks (basically the
+real .config's can be produced "compiling" annotations).
+
+Implementation
+==============
+
+To help the management of the annotations an helper script is provided
+(`debian/scripts/misc/annotations`):
+
+```
+usage: annotations [-h] [--version] [--file FILE] [--arch ARCH] [--flavour FLAVOUR] [--config CONFIG]
+                   (--query | --export | --import FILE | --update FILE | --check FILE)
+
+Manage Ubuntu kernel .config and annotations
+
+options:
+  -h, --help            show this help message and exit
+  --version, -v         show program's version number and exit
+  --file FILE, -f FILE  Pass annotations or .config file to be parsed
+  --arch ARCH, -a ARCH  Select architecture
+  --flavour FLAVOUR, -l FLAVOUR
+                        Select flavour (default is "generic")
+  --config CONFIG, -c CONFIG
+                        Select a specific config option
+
+Action:
+  --query, -q           Query annotations
+  --export, -e          Convert annotations to .config format
+  --import FILE, -i FILE
+                        Import a full .config for a specific arch and flavour into annotations
+  --update FILE, -u FILE
+                        Import a partial .config into annotations (only resync configs specified in FILE)
+  --check FILE, -k FILE
+                        Validate kernel .config with annotations
+```
+
+This script allows to query config settings (per arch/flavour/config),
+export them into the Kconfig format (generating the real .config files)
+and check if the final .config matches the rules defined in the
+annotations.
+
+Examples (annotations is defined as an alias to `debian/scripts/annotations`):
+
+ - Show settings for `CONFIG_DEBUG_INFO_BTF` for master kernel across all the
+   supported architectures and flavours:
+
+```
+$ annotations --query --config CONFIG_DEBUG_INFO_BTF
+{
+    "policy": {
+        "amd64": "y",
+        "arm64": "y",
+        "armhf": "n",
+        "ppc64el": "y",
+        "riscv64": "y",
+        "s390x": "y"
+    },
+    "note": "'Needs newer pahole for armhf'"
+}
+```
+
+ - Dump kernel .config for arm64 and flavour generic-64k:
+
+```
+$ annotations --arch arm64 --flavour generic-64k --export
+CONFIG_DEBUG_FS=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_COMPAT=y
+...
+```
+
+ - Update annotations file with a new kernel .config for amd64 flavour
+   generic:
+
+```
+$ annotations --arch amd64 --flavour generic --import build/.config
+```
+
+Moreover, an additional kernelconfig commands are provided
+(via debian/rules targets):
+ - `migrateconfigs`: automatically merge all the previous configs into
+   annotations (local changes still need to be committed)
+
+Annotations headers
+===================
+
+The main annotations file should contain a header to define the architectures
+and flavours that are supported.
+
+Here is the format of the header for the generic kernel:
+```
+# Menu: HEADER
+# FORMAT: 4
+# ARCH: amd64 arm64 armhf ppc64el riscv64 s390x
+# FLAVOUR: amd64-generic arm64-generic arm64-generic-64k armhf-generic armhf-generic-lpae ppc64el-generic riscv64-generic s390x-generic
+
+```
+
+Example header of a derivative (linux-aws):
+```
+# Menu: HEADER
+# FORMAT: 4
+# ARCH: amd64 arm64
+# FLAVOUR: amd64-aws arm64-aws
+# FLAVOUR_DEP: {'amd64-aws': 'amd64-generic', 'arm64-aws': 'arm64-generic'}
+
+include "../../debian.master/config/annotations"
+
+# Below you can define only the specific linux-aws configs that differ from linux generic
+
+```
+
+Pros and Cons
+=============
+
+ Pros:
+  - avoid duplicate information in .config's and annotations
+  - allow to easily define groups of config settings (for a specific
+    environment or feature, such as annotations.clouds, annotations.ubuntu,
+    annotations.snapd, etc.)
+  - config options are more accessible, easy to change and review
+  - we can easily document how config options are managed (and external
+    contributors won't be discouraged anymore when they need to to change a
+    config option)
+
+ Cons:
+  - potential regressions: the new tool/scripts can have potential bugs,
+    so we could experience regressions due to some missed config changes
+  - kernel team need to understand the new process (even if everything
+    is transparent, kernel cranking process is the same, there might be
+    corner cases that need to be addressed and resolved manually)
+
+TODO
+====
+
+ - Migrate all flavour and arch definitions into annotations (rather
+   than having this information defined in multiple places inside
+   debian/scripts); right now this information is "partially" migrated,
+   meaning that we need to define arches and flavours in the headers
+   section of annotations (so that the annotations tool can figure out
+   the list of supported arches and flavours), but arches and flavours
+   are still defined elsewhere, ideally we would like to have arches and
+   flavours defined only in one place: annotations.

debian.hwe-6.14/config/amd64/config.flavour.generic

@@ -0,0 +1,6 @@
+CONFIG_DRM=y
+CONFIG_DRM_SIMPLEDRM=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FB_EFI=n

debian.hwe-6.14/config/annotations

@@ -0,0 +1,38 @@
+# Menu: HEADER
+# FORMAT: 4
+# ARCH: amd64
+# FLAVOUR: amd64-generic
+
+include "../../debian.master/config/annotations"
+
+
+# ---- Annotations without notes ----
+
+CONFIG_AS_VERSION                               policy<{'amd64': '24200', 'arm64': '24200', 'armhf': '24200', 'ppc64el': '24200', 'riscv64': '24200', 's390x': '24200'}>
+CONFIG_AX88796B_RUST_PHY                        policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_BINDGEN_VERSION_TEXT                     policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_BLK_DEV_RUST_NULL                        policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_CC_ASM_FLAG_OUTPUT_BROKEN                policy<{'s390x': 'y'}>
+CONFIG_CC_HAS_KASAN_SW_TAGS                     policy<{'amd64': '-', 'arm64': 'y'}>
+CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT            policy<{'amd64': '-', 'arm64': '-', 'armhf': '-', 'ppc64el': '-', 'riscv64': '-', 's390x': '-'}>
+CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT           policy<{'amd64': '-', 'arm64': '-', 'armhf': '-', 'ppc64el': '-', 'riscv64': '-', 's390x': '-'}>
+CONFIG_CC_VERSION_TEXT                          policy<{'amd64': '"x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"', 'arm64': '"aarch64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"', 'armhf': '"arm-linux-gnueabihf-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"', 'ppc64el': '"powerpc64le-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"', 'riscv64': '"riscv64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"', 's390x': '"s390x-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"'}>
+CONFIG_DRM_PANIC_SCREEN_QR_CODE                 policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_GCC_VERSION                              policy<{'amd64': '130300', 'arm64': '130300', 'armhf': '130300', 'ppc64el': '130300', 'riscv64': '130300', 's390x': '130300'}>
+CONFIG_HAVE_RUST                                policy<{'amd64': 'y', 'arm64': '-', 'riscv64': '-'}>
+CONFIG_LD_VERSION                               policy<{'amd64': '24200', 'arm64': '24200', 'armhf': '24200', 'ppc64el': '24200', 'riscv64': '24200', 's390x': '24200'}>
+CONFIG_PAHOLE_VERSION                           policy<{'amd64': '125', 'arm64': '125', 'armhf': '125', 'ppc64el': '125', 'riscv64': '125', 's390x': '125'}>
+CONFIG_RELR                                     policy<{'arm64': '-'}>
+CONFIG_RUST                                     policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUSTC_HAS_COERCE_POINTEE                 policy<{'amd64': '-', 'arm64': '-', 'armhf': '-', 'ppc64el': '-', 'riscv64': '-', 's390x': '-'}>
+CONFIG_RUSTC_LLVM_VERSION                       policy<{'amd64': '180103', 'arm64': '180103', 'armhf': '180103', 'ppc64el': '180103', 'riscv64': '180103', 's390x': '180103'}>
+CONFIG_RUSTC_SUPPORTS_ARM64                     policy<{'arm64': '-'}>
+CONFIG_RUSTC_VERSION                            policy<{'amd64': '108001', 'arm64': '108001', 'armhf': '108001', 'ppc64el': '108001', 'riscv64': '108001', 's390x': '108001'}>
+CONFIG_RUSTC_VERSION_TEXT                       policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_BUILD_ASSERT_ALLOW                  policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_DEBUG_ASSERTIONS                    policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_FW_LOADER_ABSTRACTIONS              policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_OVERFLOW_CHECKS                     policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_PHYLIB_ABSTRACTIONS                 policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_SAMPLES_RUST                             policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_TOOLS_SUPPORT_RELR                       policy<{'amd64': 'y', 'arm64': '-', 'ppc64el': 'y'}>

debian.hwe-6.14/control.d/flavour-control.stub

@@ -0,0 +1,108 @@
+# Items that get replaced:
+# FLAVOUR
+# ARCH
+# SUPPORTED
+# TARGET
+# BOOTLOADER
+# =PROVIDES=
+#
+# Items marked with =FOO= are optional
+#
+# This file describes the template for packages that are created for each flavour
+# in debian/control.d/vars.*
+#
+# This file gets edited in a couple of places. See the debian/control.stub rule in
+# debian/rules. PGGVER, ABINUM, and SRCPKGNAME are all converted in the
+# process of creating debian/control.
+#
+# The flavour specific strings (ARCH, etc) are converted using values from the various
+# flavour files in debian/control.d/vars.*
+#
+# XXX: Leave the blank line before the first package!!
+
+Package: linux-modules-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: kernel
+Priority: optional
+Depends: ${misc:Depends}, ${shlibs:Depends}
+Built-Using: ${linux:BuiltUsing}
+Description: Linux kernel extra modules for version PKGVER
+ Contains the corresponding System.map file, the modules built by the
+ packager, and scripts that try to ensure that the system is not left in an
+ unbootable state after an update.
+ .
+ Supports SUPPORTED processors.
+ .
+ TARGET
+ .
+ You likely do not want to install this package directly. Instead, install
+ the linux-FLAVOUR meta-package, which will ensure that upgrades work
+ correctly, and that supporting packages are also installed.
+
+Package: linux-modules-extra-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: kernel
+Priority: optional
+Depends: ${misc:Depends}, ${shlibs:Depends}, linux-modules-PKGVER-ABINUM-FLAVOUR, wireless-regdb
+Description: Linux kernel extra modules for version PKGVER
+ This package contains the Linux kernel extra modules for version PKGVER.
+ .
+ Also includes the corresponding System.map file, the modules built by the
+ packager, and scripts that try to ensure that the system is not left in an
+ unbootable state after an update.
+ .
+ Supports SUPPORTED processors.
+ .
+ TARGET
+ .
+ You likely do not want to install this package directly. Instead, install
+ the linux-FLAVOUR meta-package, which will ensure that upgrades work
+ correctly, and that supporting packages are also installed.
+
+Package: linux-headers-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: devel
+Priority: optional
+Depends: ${misc:Depends}, SRCPKGNAME-headers-PKGVER-ABINUM, ${shlibs:Depends}
+Provides: linux-headers, linux-headers-3.0
+Description: Linux kernel headers for version PKGVER
+ This package provides kernel header files for version PKGVER.
+ .
+ This is for sites that want the latest kernel headers.  Please read
+ /usr/share/doc/linux-headers-PKGVER-ABINUM/debian.README.gz for details.
+
+Package: linux-lib-rust-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: amd64
+Multi-Arch: foreign
+Section: devel
+Priority: optional
+Depends: ${misc:Depends}, coreutils
+Description: Rust library files related to Linux kernel version PKGVER
+ This package provides kernel library files for version PKGVER, that allow to
+ compile out-of-tree kernel modules written in Rust.
+
+Package: linux-tools-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: devel
+Priority: optional
+Depends: ${misc:Depends}, SRCPKGNAME-tools-PKGVER-ABINUM
+Description: Linux kernel version specific tools for version PKGVER-ABINUM
+ This package provides the architecture dependant parts for kernel
+ version locked tools (such as perf and x86_energy_perf_policy) for
+ version PKGVER-ABINUM.
+
+Package: linux-cloud-tools-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: devel
+Priority: optional
+Depends: ${misc:Depends}, SRCPKGNAME-cloud-tools-PKGVER-ABINUM
+Description: Linux kernel version specific cloud tools for version PKGVER-ABINUM
+ This package provides the architecture dependant parts for kernel
+ version locked tools for cloud for version PKGVER-ABINUM.
+

debian.hwe-6.14/control.d/flavour-signed-control.stub

@@ -0,0 +1,38 @@
+Package: linux-image=SIGN-ME-PKG=-PKGVER-ABINUM-FLAVOUR
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: kernel
+Priority: optional
+Provides: linux-image, fuse-module, =PROVIDES=${linux:rprovides}
+Depends: ${misc:Depends}, ${shlibs:Depends}, kmod, linux-base (>= 4.5ubuntu1~16.04.1), linux-modules-PKGVER-ABINUM-FLAVOUR
+Recommends: BOOTLOADER, initramfs-tools | linux-initramfs-tool
+Breaks: flash-kernel (<< 3.90ubuntu2) [arm64 armhf], s390-tools (<< 2.3.0-0ubuntu3) [s390x]
+Conflicts: linux-image=SIGN-PEER-PKG=-PKGVER-ABINUM-FLAVOUR
+Suggests: SRCPKGNAME-tools, linux-headers-PKGVER-ABINUM-FLAVOUR, linux-modules-extra-PKGVER-ABINUM-FLAVOUR
+Description: Linux kernel image for version PKGVER
+ This package contains the=SIGN-ME-TXT= Linux kernel image for version PKGVER.
+ .
+ Supports SUPPORTED processors.
+ .
+ TARGET
+ .
+ You likely do not want to install this package directly. Instead, install
+ the linux-FLAVOUR meta-package, which will ensure that upgrades work
+ correctly, and that supporting packages are also installed.
+
+Package: linux-image=SIGN-ME-PKG=-PKGVER-ABINUM-FLAVOUR-dbgsym
+Build-Profiles: <!stage1>
+Architecture: ARCH
+Section: devel
+Priority: optional
+Depends: ${misc:Depends}
+Provides: linux-debug
+Description: Linux kernel debug image for version PKGVER
+ This package provides the=SIGN-ME-TXT= kernel debug image for version PKGVER.
+ .
+ This is for sites that wish to debug the kernel.
+ .
+ The kernel image contained in this package is NOT meant to boot from. It
+ is uncompressed, and unstripped. This package also includes the
+ unstripped modules.
+