PCI/MSI: Prevent MSI hardware interrupt number truncation

Ubuntu.md

@@ -1,8 +1,7 @@
-Name:    linux
-Version: 6.5.10
-Series:  23.10 (mantic)
+Version: 6.5.0
+Series:  22.04 (jammy)
 Description:
-    This is the source code for the Ubuntu linux kernel for the 23.10 series. This
-    source tree is used to produce the flavours: generic, generic-64k, generic-lpae.
+    This is the source code for the Ubuntu linux kernel for the 22.04 series. This
+    source tree is used to produce the flavours: nvidia, nvidia-64k.
     This kernel is configured to support the widest range of desktop, laptop and
     server configurations.

arch/arm64/include/asm/acpi.h

@@ -43,6 +43,9 @@
 #define ACPI_MADT_GICC_SPE  (offsetof(struct acpi_madt_generic_interrupt, \
 	spe_interrupt) + sizeof(u16))
 
+#define ACPI_MADT_GICC_TRBE  (offsetof(struct acpi_madt_generic_interrupt, \
+	trbe_interrupt) + sizeof(u16))
+
 /*
  * Arm® Functional Fixed Hardware Specification Version 1.2.
  * Table 2: Arm Architecture context loss flags

arch/powerpc/kernel/module_64.c

@@ -347,13 +347,12 @@ static unsigned long get_got_size(const Elf64_Ehdr *hdr,
 static void dedotify_versions(struct modversion_info *vers,
 			      unsigned long size)
 {
-	struct modversion_info *end = (void *)vers + size;
+	struct modversion_info *end;
 
-	for (; vers < end && vers->next; vers = (void *)vers + vers->next) {
+	for (end = (void *)vers + size; vers < end; vers++)
 		if (vers->name[0] == '.') {
 			memmove(vers->name, vers->name+1, strlen(vers->name));
 		}
-	}
 }
 
 /*

debian.nvidia-6.5/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.nvidia-6.5/config/annotations

@@ -0,0 +1,99 @@
+# Menu: HEADER
+# FORMAT: 4
+# ARCH: amd64 arm64
+# FLAVOUR: amd64-nvidia arm64-nvidia arm64-nvidia-64k
+# FLAVOUR_DEP: {'amd64-nvidia': 'amd64-generic', 'arm64-nvidia': 'arm64-generic', 'arm64-nvidia-64k': 'arm64-generic-64k'}
+
+include "../../debian.master/config/annotations"
+
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND            policy<{'arm64': 'n'}>
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND            note<'{required for nvidia workloads}'>
+
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE         policy<{'amd64': 'n', 'arm64': 'y'}>
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE         note<'{required for nvidia workloads}'>
+
+CONFIG_MTD                                      policy<{'amd64': 'm', 'arm64': 'y'}>
+CONFIG_MTD                                      note<'boot essential on arm'>
+
+CONFIG_NR_CPUS                                  policy<{'amd64': '8192', 'arm64': '512'}>
+CONFIG_NR_CPUS                                  note<'LP: #1864198'>
+
+CONFIG_PREEMPT_NONE                             policy<{'amd64': 'n', 'arm64': 'y'}>
+CONFIG_PREEMPT_NONE                             note<'required for nvidia workloads'>
+
+CONFIG_PREEMPT_VOLUNTARY                        policy<{'amd64': 'y', 'arm64': 'n'}>
+CONFIG_PREEMPT_VOLUNTARY                        note<'required for nvidia workloads'>
+
+CONFIG_RUST                                     policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST                                     note<'required to enable Rust support, LP: #1993183'>
+
+CONFIG_RUST_IS_AVAILABLE                        policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_RUST_IS_AVAILABLE                        note<'required to enable Rust support, LP: #1993183'>
+
+CONFIG_SPI_TEGRA210_QUAD                        policy<{'arm64': 'y'}>
+CONFIG_SPI_TEGRA210_QUAD                        note<'ensures the TPM is available before the IMA driver initializes'>
+
+CONFIG_TCG_TIS_SPI                              policy<{'amd64': 'm', 'arm64': 'y'}>
+CONFIG_TCG_TIS_SPI                              note<'ensures the TPM is available before the IMA driver initializes'>
+
+
+# ---- Annotations without notes ----
+
+CONFIG_ARCH_SUPPORTS_SHADOW_CALL_STACK          policy<{'arm64': '-'}>
+CONFIG_ARM64_ERRATUM_1902691                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2038923                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2064142                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2119858                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2139208                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2224489                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_ERRATUM_2253138                    policy<{'arm64': 'y'}>
+CONFIG_ARM64_WORKAROUND_TRBE_OVERWRITE_FILL_MODE policy<{'arm64': 'y'}>
+CONFIG_ARM64_WORKAROUND_TRBE_WRITE_OUT_OF_RANGE policy<{'arm64': 'y'}>
+CONFIG_AS_VERSION                               policy<{'amd64': '23800', 'arm64': '23800'}>
+CONFIG_BCH                                      policy<{'amd64': 'm', 'arm64': 'y'}>
+CONFIG_BINDGEN_VERSION_TEXT                     policy<{'amd64': '-'}>
+CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN             policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO                policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE           policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_CC_HAVE_SHADOW_CALL_STACK                policy<{'arm64': '-'}>
+CONFIG_CC_VERSION_TEXT                          policy<{'amd64': '"x86_64-linux-gnu-gcc-11 (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"', 'arm64': '"aarch64-linux-gnu-gcc-11 (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"'}>
+CONFIG_CONSTRUCTORS                             policy<{'amd64': '-'}>
+CONFIG_CORESIGHT                                policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_CATU                           policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_CPU_DEBUG                      policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_CPU_DEBUG_DEFAULT_ON           policy<{'arm64': 'n'}>
+CONFIG_CORESIGHT_CTI                            policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_CTI_INTEGRATION_REGS           policy<{'arm64': 'n'}>
+CONFIG_CORESIGHT_DUMMY                          policy<{'arm64': 'n'}>
+CONFIG_CORESIGHT_LINKS_AND_SINKS                policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_LINK_AND_SINK_TMC              policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_SINK_ETBV10                    policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_SINK_TPIU                      policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_SOURCE_ETM4X                   policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_STM                            policy<{'arm64': 'm'}>
+CONFIG_CORESIGHT_TPDA                           policy<{'arm64': 'n'}>
+CONFIG_CORESIGHT_TPDM                           policy<{'arm64': 'n'}>
+CONFIG_CORESIGHT_TRBE                           policy<{'arm64': 'm'}>
+CONFIG_DEBUG_INFO_COMPRESSED_ZSTD               policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_ETM4X_IMPDEF_FEATURE                     policy<{'arm64': 'n'}>
+CONFIG_GCC_VERSION                              policy<{'amd64': '110400', 'arm64': '110400'}>
+CONFIG_GPIO_AAEON                               policy<{'amd64': '-'}>
+CONFIG_INIT_STACK_ALL_PATTERN                   policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_INIT_STACK_ALL_ZERO                      policy<{'amd64': '-', 'arm64': '-'}>
+CONFIG_INIT_STACK_NONE                          policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_KCOV                                     policy<{'amd64': 'n', 'arm64': '-'}>
+CONFIG_LD_VERSION                               policy<{'amd64': '23800', 'arm64': '23800'}>
+CONFIG_LEDS_AAEON                               policy<{'amd64': '-'}>
+CONFIG_MFD_AAEON                                policy<{'amd64': '-'}>
+CONFIG_MTD_NAND_CORE                            policy<{'amd64': 'm', 'arm64': 'y'}>
+CONFIG_PID_IN_CONTEXTIDR                        policy<{'arm64': 'y'}>
+CONFIG_RUSTC_VERSION_TEXT                       policy<{'amd64': '-'}>
+CONFIG_RUST_BUILD_ASSERT_ALLOW                  policy<{'amd64': '-'}>
+CONFIG_RUST_DEBUG_ASSERTIONS                    policy<{'amd64': '-'}>
+CONFIG_RUST_OVERFLOW_CHECKS                     policy<{'amd64': '-'}>
+CONFIG_SAMPLES_RUST                             policy<{'amd64': '-'}>
+CONFIG_SAMPLE_CORESIGHT_SYSCFG                  policy<{'arm64': 'n'}>
+CONFIG_SENSORS_AAEON                            policy<{'amd64': '-'}>
+CONFIG_SHADOW_CALL_STACK                        policy<{'arm64': '-'}>
+CONFIG_UBUNTU_ODM_DRIVERS                       policy<{'amd64': '-'}>
+CONFIG_ULTRASOC_SMB                             policy<{'arm64': 'n'}>