X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=config%2FConfig-kernel.in;h=0c9e00d11fe5edf5bd7275ae118e2545c0ca466f;hb=d2af5ab850ce673e2c00cefd07727b9206904af3;hp=5e677e6afdef72b4b55b3a93af33b6189980efc1;hpb=947d2e0a70d4b93eda4b9fe229ad2bf0bfc79251;p=openwrt%2Fstaging%2Fjow.git diff --git a/config/Config-kernel.in b/config/Config-kernel.in index 5e677e6afd..0c9e00d11f 100644 --- a/config/Config-kernel.in +++ b/config/Config-kernel.in @@ -1,8 +1,6 @@ -# Copyright (C) 2006-2014 OpenWrt.org -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. +# SPDX-License-Identifier: GPL-2.0-only # +# Copyright (C) 2006-2014 OpenWrt.org config KERNEL_BUILD_USER string "Custom Kernel Build User Name" @@ -26,15 +24,14 @@ config KERNEL_PRINTK bool "Enable support for printk" default y -config KERNEL_CRASHLOG - bool "Crash logging" - depends on !(arm || powerpc || sparc || TARGET_uml || i386 || x86_64) - default y - config KERNEL_SWAP bool "Support for paging of anonymous memory (swap)" default y if !SMALL_FLASH +config KERNEL_PROC_STRIPPED + bool "Strip non-essential /proc functionality to reduce code size" + default y if SMALL_FLASH + config KERNEL_DEBUG_FS bool "Compile the kernel with debug filesystem enabled" default y @@ -44,19 +41,16 @@ config KERNEL_DEBUG_FS write to these files. Many common debugging facilities, such as ftrace, require the existence of debugfs. -config KERNEL_MIPS_FPU_EMULATOR - bool "Compile the kernel with MIPS FPU Emulator" +config KERNEL_MIPS_FP_SUPPORT + bool default y if TARGET_pistachio - depends on (mips || mipsel || mips64 || mips64el) config KERNEL_ARM_PMU bool - default n depends on (arm || aarch64) config KERNEL_X86_VSYSCALL_EMULATION bool "Enable vsyscall emulation" - default n depends on x86_64 help This enables emulation of the legacy vsyscall page. Disabling @@ -74,17 +68,20 @@ config KERNEL_X86_VSYSCALL_EMULATION config KERNEL_PERF_EVENTS bool "Compile the kernel with performance events and counters" - default n select KERNEL_ARM_PMU if (arm || aarch64) config KERNEL_PROFILING bool "Compile the kernel with profiling enabled" - default n select KERNEL_PERF_EVENTS help Enable the extended profiling support mechanisms used by profilers such as OProfile. +config KERNEL_RPI_AXIPERF + bool "Compile the kernel with RaspberryPi AXI Performance monitors" + default y + depends on KERNEL_PERF_EVENTS && TARGET_bcm27xx + config KERNEL_UBSAN bool "Compile the kernel with undefined behaviour sanity checker" help @@ -113,6 +110,16 @@ config KERNEL_UBSAN_ALIGNMENT Enabling this option on architectures that support unaligned accesses may produce a lot of false positives. +config KERNEL_UBSAN_BOUNDS + bool "Perform array index bounds checking" + depends on KERNEL_UBSAN + help + This option enables detection of directly indexed out of bounds array + accesses, where the array size is known at compile time. Note that + this does not protect array overflows via bad calls to the + {str,mem}*cpy() family of functions (that is addressed by + FORTIFY_SOURCE). + config KERNEL_UBSAN_NULL bool "Enable checking of null pointers" depends on KERNEL_UBSAN @@ -120,6 +127,19 @@ config KERNEL_UBSAN_NULL This option enables detection of memory accesses via a null pointer. +config KERNEL_UBSAN_TRAP + bool "On Sanitizer warnings, abort the running kernel code" + depends on KERNEL_UBSAN + help + Building kernels with Sanitizer features enabled tends to grow the + kernel size by around 5%, due to adding all the debugging text on + failure paths. To avoid this, Sanitizer instrumentation can just + issue a trap. This reduces the kernel size overhead but turns all + warnings (including potentially harmless conditions) into full + exceptions that abort the running kernel code (regardless of context, + locks held, etc), which may destabilize the system. For some system + builders this is an acceptable trade-off. + config KERNEL_KASAN bool "Compile the kernel with KASan: runtime memory debugger" select KERNEL_SLUB_DEBUG @@ -146,10 +166,91 @@ config KERNEL_KASAN_EXTRA compile time. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 has more +config KERNEL_KASAN_VMALLOC + bool "Back mappings in vmalloc space with real shadow memory" + depends on KERNEL_KASAN + help + By default, the shadow region for vmalloc space is the read-only + zero page. This means that KASAN cannot detect errors involving + vmalloc space. + + Enabling this option will hook in to vmap/vmalloc and back those + mappings with real shadow memory allocated on demand. This allows + for KASAN to detect more sorts of errors (and to support vmapped + stacks), but at the cost of higher memory usage. + + This option depends on HAVE_ARCH_KASAN_VMALLOC, but we can't + depend on that in here, so it is possible that enabling this + will have no effect. + +if KERNEL_KASAN +choice + prompt "KASAN mode" + depends on KERNEL_KASAN + default KERNEL_KASAN_GENERIC + help + KASAN has three modes: + + 1. Generic KASAN (supported by many architectures, enabled with + CONFIG_KASAN_GENERIC, similar to userspace ASan), + 2. Software Tag-Based KASAN (arm64 only, based on software memory + tagging, enabled with CONFIG_KASAN_SW_TAGS, similar to userspace + HWASan), and + 3. Hardware Tag-Based KASAN (arm64 only, based on hardware memory + tagging, enabled with CONFIG_KASAN_HW_TAGS). + +config KERNEL_KASAN_GENERIC + bool "Generic KASAN" + select KERNEL_SLUB_DEBUG + help + Enables Generic KASAN. + + Consumes about 1/8th of available memory at kernel start and adds an + overhead of ~50% for dynamic allocations. + The performance slowdown is ~x3. + +config KERNEL_KASAN_SW_TAGS + bool "Software Tag-Based KASAN" + depends on aarch64 + select KERNEL_SLUB_DEBUG + help + Enables Software Tag-Based KASAN. + + Supported only on arm64 CPUs and relies on Top Byte Ignore. + + Consumes about 1/16th of available memory at kernel start and + add an overhead of ~20% for dynamic allocations. + + May potentially introduce problems related to pointer casting and + comparison, as it embeds a tag into the top byte of each pointer. + +config KERNEL_KASAN_HW_TAGS + bool "Hardware Tag-Based KASAN" + depends on aarch64 + select KERNEL_SLUB_DEBUG + select KERNEL_ARM64_MTE + help + Enables Hardware Tag-Based KASAN. + + Supported only on arm64 CPUs starting from ARMv8.5 and relies on + Memory Tagging Extension and Top Byte Ignore. + + Consumes about 1/32nd of available memory. + + May potentially introduce problems related to pointer casting and + comparison, as it embeds a tag into the top byte of each pointer. + +endchoice + + config KERNEL_ARM64_MTE + def_bool n + +endif choice prompt "Instrumentation type" depends on KERNEL_KASAN + depends on !KERNEL_KASAN_HW_TAGS default KERNEL_KASAN_OUTLINE config KERNEL_KASAN_OUTLINE @@ -207,7 +308,6 @@ config KERNEL_KCOV_INSTRUMENT_ALL config KERNEL_TASKSTATS bool "Compile the kernel with task resource/io statistics and accounting" - default n help Enable the collection and publishing of task/io statistics and accounting. Enable this option to enable i/o monitoring in system @@ -235,41 +335,80 @@ config KERNEL_KALLSYMS config KERNEL_FTRACE bool "Compile the kernel with tracing support" depends on !TARGET_uml - default n config KERNEL_FTRACE_SYSCALLS bool "Trace system calls" depends on KERNEL_FTRACE - default n config KERNEL_ENABLE_DEFAULT_TRACERS bool "Trace process context switches and events" depends on KERNEL_FTRACE - default n config KERNEL_FUNCTION_TRACER bool "Function tracer" depends on KERNEL_FTRACE - default n config KERNEL_FUNCTION_GRAPH_TRACER bool "Function graph tracer" depends on KERNEL_FUNCTION_TRACER - default n config KERNEL_DYNAMIC_FTRACE bool "Enable/disable function tracing dynamically" depends on KERNEL_FUNCTION_TRACER - default n config KERNEL_FUNCTION_PROFILER bool "Function profiler" depends on KERNEL_FUNCTION_TRACER - default n + +config KERNEL_IRQSOFF_TRACER + bool "Interrupts-off Latency Tracer" + depends on KERNEL_FTRACE + help + This option measures the time spent in irqs-off critical + sections, with microsecond accuracy. + + The default measurement method is a maximum search, which is + disabled by default and can be runtime (re-)started + via: + + echo 0 > /sys/kernel/debug/tracing/tracing_max_latency + + (Note that kernel size and overhead increase with this option + enabled. This option and the preempt-off timing option can be + used together or separately.) + +config KERNEL_PREEMPT_TRACER + bool "Preemption-off Latency Tracer" + depends on KERNEL_FTRACE + help + This option measures the time spent in preemption-off critical + sections, with microsecond accuracy. + + The default measurement method is a maximum search, which is + disabled by default and can be runtime (re-)started + via: + + echo 0 > /sys/kernel/debug/tracing/tracing_max_latency + + (Note that kernel size and overhead increase with this option + enabled. This option and the irqs-off timing option can be + used together or separately.) + +config KERNEL_HIST_TRIGGERS + bool "Histogram triggers" + depends on KERNEL_FTRACE + help + Hist triggers allow one or more arbitrary trace event fields to be + aggregated into hash tables and dumped to stdout by reading a + debugfs/tracefs file. They're useful for gathering quick and dirty + (though precise) summaries of event activity as an initial guide for + further investigation using more advanced tools. + + Inter-event tracing of quantities such as latencies is also + supported using hist triggers under this option. config KERNEL_DEBUG_KERNEL bool - default n config KERNEL_DEBUG_INFO bool "Compile the kernel with debug information" @@ -278,6 +417,58 @@ config KERNEL_DEBUG_INFO help This will compile your kernel and modules with debug information. +config KERNEL_DEBUG_INFO_BTF + + bool "Enable additional BTF type information" + depends on !HOST_OS_MACOS + depends on KERNEL_DEBUG_INFO && !KERNEL_DEBUG_INFO_REDUCED + select DWARVES + help + Generate BPF Type Format (BTF) information from DWARF debug info. + Turning this on expects presence of pahole tool, which will convert + DWARF type info into equivalent deduplicated BTF type info. + + Required to run BPF CO-RE applications. + +config KERNEL_MODULE_ALLOW_BTF_MISMATCH + bool "Allow loading modules with non-matching BTF type info" + depends on KERNEL_DEBUG_INFO_BTF + help + For modules whose split BTF does not match vmlinux, load without + BTF rather than refusing to load. The default behavior with + module BTF enabled is to reject modules with such mismatches; + this option will still load module BTF where possible but ignore + it when a mismatch is found. + +config KERNEL_DEBUG_INFO_REDUCED + bool "Reduce debugging information" + default y + depends on KERNEL_DEBUG_INFO + help + If you say Y here gcc is instructed to generate less debugging + information for structure types. This means that tools that + need full debugging information (like kgdb or systemtap) won't + be happy. But if you merely need debugging information to + resolve line numbers there is no loss. Advantage is that + build directory object sizes shrink dramatically over a full + DEBUG_INFO build and compile times are reduced too. + Only works with newer gcc versions. + +config KERNEL_FRAME_WARN + int + range 0 8192 + default 1280 if KERNEL_KASAN && !ARCH_64BIT + default 1024 if !ARCH_64BIT + default 2048 if ARCH_64BIT + help + Tell the compiler to warn at build time for stack frames larger than this. + Setting this too low will cause a lot of warnings. + Setting it to 0 disables the warning. + +# KERNEL_DEBUG_LL symbols must have the default value set as otherwise +# KConfig wont evaluate them unless KERNEL_EARLY_PRINTK is selected +# which means that buildroot wont override the DEBUG_LL symbols in target +# kernel configurations and lead to devices that dont have working console config KERNEL_DEBUG_LL_UART_NONE bool default n @@ -291,10 +482,16 @@ config KERNEL_DEBUG_LL help ARM low level debugging. +config KERNEL_DEBUG_VIRTUAL + bool "Compile the kernel with VM translations debugging" + select KERNEL_DEBUG_KERNEL + help + Enable checks sanity checks to catch invalid uses of + virt_to_phys()/phys_to_virt() against the non-linear address space. + config KERNEL_DYNAMIC_DEBUG bool "Compile the kernel with dynamic printk" select KERNEL_DEBUG_FS - default n help Compiles debug level messages into the kernel, which would not otherwise be available at runtime. These messages can then be @@ -306,7 +503,6 @@ config KERNEL_DYNAMIC_DEBUG config KERNEL_EARLY_PRINTK bool "Compile the kernel with early printk" default y if TARGET_bcm53xx - default n depends on arm select KERNEL_DEBUG_KERNEL select KERNEL_DEBUG_LL if arm @@ -317,7 +513,6 @@ config KERNEL_EARLY_PRINTK config KERNEL_KPROBES bool "Compile the kernel with kprobes support" - default n select KERNEL_FTRACE select KERNEL_PERF_EVENTS help @@ -328,18 +523,33 @@ config KERNEL_KPROBES instrumentation and testing. If in doubt, say "N". -config KERNEL_KPROBE_EVENT +config KERNEL_KPROBE_EVENTS bool default y if KERNEL_KPROBES -config KERNEL_KPROBE_EVENTS +config KERNEL_BPF_EVENTS + bool "Compile the kernel with BPF event support" + select KERNEL_KPROBES + help + Allows to attach BPF programs to kprobe, uprobe and tracepoint events. + This is required to use BPF maps of type BPF_MAP_TYPE_PERF_EVENT_ARRAY + for sending data from BPF programs to user-space for post-processing + or logging. + +config KERNEL_BPF_KPROBE_OVERRIDE bool - default y if KERNEL_KPROBES + depends on KERNEL_KPROBES + default n config KERNEL_AIO bool "Compile the kernel with asynchronous IO support" default y if !SMALL_FLASH +config KERNEL_IO_URING + bool "Compile the kernel with io_uring support" + depends on !SMALL_FLASH + default y if (x86_64 || aarch64) + config KERNEL_FHANDLE bool "Compile the kernel with support for fhandle syscalls" default y if !SMALL_FLASH @@ -350,7 +560,29 @@ config KERNEL_FANOTIFY config KERNEL_BLK_DEV_BSG bool "Compile the kernel with SCSI generic v4 support for any block device" - default n + +config KERNEL_TRANSPARENT_HUGEPAGE + bool + +choice + prompt "Transparent Hugepage Support sysfs defaults" + depends on KERNEL_TRANSPARENT_HUGEPAGE + default KERNEL_TRANSPARENT_HUGEPAGE_ALWAYS + + config KERNEL_TRANSPARENT_HUGEPAGE_ALWAYS + bool "always" + + config KERNEL_TRANSPARENT_HUGEPAGE_MADVISE + bool "madvise" +endchoice + +config KERNEL_HUGETLBFS + bool + +config KERNEL_HUGETLB_PAGE + bool "Compile the kernel with HugeTLB support" + select KERNEL_TRANSPARENT_HUGEPAGE + select KERNEL_HUGETLBFS config KERNEL_MAGIC_SYSRQ bool "Compile the kernel with SysRq support" @@ -375,7 +607,74 @@ config KERNEL_ELF_CORE config KERNEL_PROVE_LOCKING bool "Enable kernel lock checking" select KERNEL_DEBUG_KERNEL - default n + +config KERNEL_SOFTLOCKUP_DETECTOR + bool "Compile the kernel with detect Soft Lockups" + depends on KERNEL_DEBUG_KERNEL + help + Say Y here to enable the kernel to act as a watchdog to detect + soft lockups. + + Softlockups are bugs that cause the kernel to loop in kernel + mode for more than 20 seconds, without giving other tasks a + chance to run. The current stack trace is displayed upon + detection and the system will stay locked up. + +config KERNEL_HARDLOCKUP_DETECTOR + bool "Compile the kernel with detect Hard Lockups" + depends on KERNEL_DEBUG_KERNEL + help + Say Y here to enable the kernel to act as a watchdog to detect + hard lockups. + + Hardlockups are bugs that cause the CPU to loop in kernel mode + for more than 10 seconds, without letting other interrupts have a + chance to run. The current stack trace is displayed upon detection + and the system will stay locked up. + +config KERNEL_DETECT_HUNG_TASK + bool "Compile the kernel with detect Hung Tasks" + depends on KERNEL_DEBUG_KERNEL + default KERNEL_SOFTLOCKUP_DETECTOR + help + Say Y here to enable the kernel to detect "hung tasks", + which are bugs that cause the task to be stuck in + uninterruptible "D" state indefinitely. + + When a hung task is detected, the kernel will print the + current stack trace (which you should report), but the + task will stay in uninterruptible state. If lockdep is + enabled then all held locks will also be reported. This + feature has negligible overhead. + +config KERNEL_WQ_WATCHDOG + bool "Compile the kernel with detect Workqueue Stalls" + depends on KERNEL_DEBUG_KERNEL + help + Say Y here to enable stall detection on workqueues. If a + worker pool doesn't make forward progress on a pending work + item for over a given amount of time, 30s by default, a + warning message is printed along with dump of workqueue + state. This can be configured through kernel parameter + "workqueue.watchdog_thresh" and its sysfs counterpart. + +config KERNEL_DEBUG_ATOMIC_SLEEP + bool "Compile the kernel with sleep inside atomic section checking" + depends on KERNEL_DEBUG_KERNEL + help + If you say Y here, various routines which may sleep will become very + noisy if they are called inside atomic sections: when a spinlock is + held, inside an rcu read side critical section, inside preempt disabled + sections, inside an interrupt, etc... + +config KERNEL_DEBUG_VM + bool "Compile the kernel with debug VM" + depends on KERNEL_DEBUG_KERNEL + help + Enable this to turn on extended checks in the virtual-memory system + that may impact performance. + + If unsure, say N. config KERNEL_PRINTK_TIME bool "Enable printk timestamps" @@ -404,10 +703,14 @@ config KERNEL_KEXEC config KERNEL_PROC_VMCORE bool +config KERNEL_PROC_KCORE + bool + config KERNEL_CRASH_DUMP depends on i386 || x86_64 || arm || armeb select KERNEL_KEXEC select KERNEL_PROC_VMCORE + select KERNEL_PROC_KCORE bool "Enable support for kexec crashdump" default y @@ -417,11 +720,9 @@ config USE_RFKILL config USE_SPARSE bool "Enable sparse check during kernel build" - default n config KERNEL_DEVTMPFS bool "Compile the kernel with device tmpfs enabled" - default n help devtmpfs is a simple, kernel-managed /dev filesystem. The kernel creates devices nodes for all registered devices to simplify boot, but leaves more @@ -431,28 +732,24 @@ if KERNEL_DEVTMPFS config KERNEL_DEVTMPFS_MOUNT bool "Automatically mount devtmpfs after root filesystem is mounted" - default n endif config KERNEL_KEYS - bool "Enable kernel access key retention support" - default n + bool "Enable kernel access key retention support" + default !SMALL_FLASH config KERNEL_PERSISTENT_KEYRINGS - bool "Enable kernel persistent keyrings" - depends on KERNEL_KEYS - default n + bool "Enable kernel persistent keyrings" + depends on KERNEL_KEYS -config KERNEL_BIG_KEYS - bool "Enable large payload keys on kernel keyrings" - depends on KERNEL_KEYS - default n +config KERNEL_KEYS_REQUEST_CACHE + bool "Enable temporary caching of the last request_key() result" + depends on KERNEL_KEYS -config KERNEL_ENCRYPTED_KEYS - tristate "Enable keys with encrypted payloads on kernel keyrings" - depends on KERNEL_KEYS - default n +config KERNEL_BIG_KEYS + bool "Enable large payload keys on kernel keyrings" + depends on KERNEL_KEYS # # CGROUP support symbols @@ -466,7 +763,6 @@ if KERNEL_CGROUPS config KERNEL_CGROUP_DEBUG bool "Example debug cgroup subsystem" - default n help This option enables a simple cgroup subsystem that exports useful debugging information about the cgroups @@ -474,21 +770,26 @@ if KERNEL_CGROUPS config KERNEL_FREEZER bool - default y if KERNEL_CGROUP_FREEZER config KERNEL_CGROUP_FREEZER - bool "Freezer cgroup subsystem" - default y + bool "legacy Freezer cgroup subsystem" + select KERNEL_FREEZER help Provides a way to freeze and unfreeze all tasks in a cgroup. + (legacy cgroup1-only controller, in cgroup2 freezer + is integrated in the Memory controller) config KERNEL_CGROUP_DEVICE - bool "Device controller for cgroups" - default y + bool "legacy Device controller for cgroups" help Provides a cgroup implementing whitelists for devices which a process in the cgroup can mknod or open. + (legacy cgroup1-only controller) + + config KERNEL_CGROUP_HUGETLB + bool "HugeTLB controller" + select KERNEL_HUGETLB_PAGE config KERNEL_CGROUP_PIDS bool "PIDs cgroup subsystem" @@ -497,9 +798,17 @@ if KERNEL_CGROUPS Provides enforcement of process number limits in the scope of a cgroup. + config KERNEL_CGROUP_RDMA + bool "RDMA controller for cgroups" + default y + + config KERNEL_CGROUP_BPF + bool "Support for eBPF programs attached to cgroups" + default y + config KERNEL_CPUSETS bool "Cpuset support" - default y if !SMALL_FLASH + default y help This option will let you create and manage CPUSETs which allow dynamically partitioning a system into sets of CPUs and @@ -508,19 +817,18 @@ if KERNEL_CGROUPS config KERNEL_PROC_PID_CPUSET bool "Include legacy /proc//cpuset file" - default n depends on KERNEL_CPUSETS config KERNEL_CGROUP_CPUACCT bool "Simple CPU accounting cgroup subsystem" - default y if !SMALL_FLASH + default y help Provides a simple Resource Controller for monitoring the total CPU consumed by the tasks in a cgroup. config KERNEL_RESOURCE_COUNTERS bool "Resource counters" - default y if !SMALL_FLASH + default y help This option enables controller independent resource accounting infrastructure that works with cgroups. @@ -531,8 +839,9 @@ if KERNEL_CGROUPS config KERNEL_MEMCG bool "Memory Resource Controller for Control Groups" - default y if !SMALL_FLASH - depends on KERNEL_RESOURCE_COUNTERS || !LINUX_3_18 + default y + select KERNEL_FREEZER + depends on KERNEL_RESOURCE_COUNTERS help Provides a memory resource controller that manages both anonymous memory and page cache. (See Documentation/cgroups/memory.txt) @@ -554,7 +863,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG_SWAP bool "Memory Resource Controller Swap Extension" - default n + default y depends on KERNEL_MEMCG help Add swap management feature to memory resource controller. When you @@ -573,7 +882,6 @@ if KERNEL_CGROUPS config KERNEL_MEMCG_SWAP_ENABLED bool "Memory Resource Controller Swap Extension enabled by default" - default n depends on KERNEL_MEMCG_SWAP help Memory Resource Controller Swap Extension comes with its price in @@ -589,7 +897,7 @@ if KERNEL_CGROUPS config KERNEL_MEMCG_KMEM bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)" - default y if !SMALL_FLASH + default y depends on KERNEL_MEMCG help The Kernel Memory extension for Memory Resource Controller can limit @@ -602,7 +910,6 @@ if KERNEL_CGROUPS config KERNEL_CGROUP_PERF bool "Enable perf_event per-cpu per-container group (cgroup) monitoring" select KERNEL_PERF_EVENTS - default n help This option extends the per-cpu mode to restrict monitoring to threads which belong to the cgroup specified and run on the @@ -610,7 +917,7 @@ if KERNEL_CGROUPS menuconfig KERNEL_CGROUP_SCHED bool "Group CPU scheduler" - default y if !SMALL_FLASH + default y help This feature lets CPU scheduler recognize task groups and control CPU bandwidth allocation to such task groups. It uses cgroups to group @@ -620,11 +927,11 @@ if KERNEL_CGROUPS config KERNEL_FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" - default y if !SMALL_FLASH + default y config KERNEL_CFS_BANDWIDTH bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" - default n + default y depends on KERNEL_FAIR_GROUP_SCHED help This option allows users to define CPU bandwidth rates (limits) for @@ -635,7 +942,7 @@ if KERNEL_CGROUPS config KERNEL_RT_GROUP_SCHED bool "Group scheduling for SCHED_RR/FIFO" - default y if !SMALL_FLASH + default y help This feature lets you explicitly allocate real CPU bandwidth to task groups. If enabled, it will also make it impossible to @@ -670,7 +977,7 @@ if KERNEL_CGROUPS config KERNEL_BLK_DEV_THROTTLING bool "Enable throttling policy" - default y if TARGET_bcm27xx + default y config KERNEL_BLK_DEV_THROTTLING_LOW bool "Block throttling .low limit interface support (EXPERIMENTAL)" @@ -679,19 +986,19 @@ if KERNEL_CGROUPS config KERNEL_DEBUG_BLK_CGROUP bool "Enable Block IO controller debugging" - default n depends on KERNEL_BLK_CGROUP help Enable some debugging help. Currently it exports additional stat files in a cgroup which can be useful for debugging. config KERNEL_NET_CLS_CGROUP - bool "Control Group Classifier" - default y + bool "legacy Control Group Classifier" - config KERNEL_NETPRIO_CGROUP - bool "Network priority cgroup" - default y + config KERNEL_CGROUP_NET_CLASSID + bool "legacy Network classid cgroup" + + config KERNEL_CGROUP_NET_PRIO + bool "legacy Network priority cgroup" endif @@ -791,6 +1098,19 @@ config KERNEL_IP_MROUTE Multicast routing requires a multicast routing daemon in addition to kernel support. +if KERNEL_IP_MROUTE + + config KERNEL_IP_MROUTE_MULTIPLE_TABLES + def_bool y + + config KERNEL_IP_PIMSM_V1 + def_bool y + + config KERNEL_IP_PIMSM_V2 + def_bool y + +endif + # # IPv6 configuration # @@ -813,11 +1133,65 @@ if KERNEL_IPV6 Multicast routing requires a multicast routing daemon in addition to kernel support. - config KERNEL_IPV6_PIMSM_V2 + if KERNEL_IPV6_MROUTE + + config KERNEL_IPV6_MROUTE_MULTIPLE_TABLES + def_bool y + + config KERNEL_IPV6_PIMSM_V2 + def_bool y + + endif + + config KERNEL_IPV6_SEG6_LWTUNNEL + bool "Enable support for lightweight tunnels" + default y if !SMALL_FLASH + help + Using lwtunnel (needed for IPv6 segment routing) requires ip-full package. + + config KERNEL_LWTUNNEL_BPF def_bool n endif +# +# Miscellaneous network configuration +# + +config KERNEL_NET_L3_MASTER_DEV + bool "L3 Master device support" + help + This module provides glue between core networking code and device + drivers to support L3 master devices like VRF. + +config KERNEL_XDP_SOCKETS + bool "XDP sockets support" + help + XDP sockets allows a channel between XDP programs and + userspace applications. + +config KERNEL_WIRELESS_EXT + def_bool n + +config KERNEL_WEXT_CORE + def_bool KERNEL_WIRELESS_EXT + +config KERNEL_WEXT_PRIV + def_bool KERNEL_WIRELESS_EXT + +config KERNEL_WEXT_PROC + def_bool KERNEL_WIRELESS_EXT + +config KERNEL_WEXT_SPY + def_bool KERNEL_WIRELESS_EXT + +config KERNEL_PAGE_POOL + def_bool n + +config KERNEL_PAGE_POOL_STATS + bool "Page pool stats support" + depends on KERNEL_PAGE_POOL + # # NFS related symbols # @@ -855,7 +1229,6 @@ endif menu "Filesystem ACL and attr support options" config USE_FS_ACL_ATTR bool "Use filesystem ACL and attr support by default" - default n help Make using ACLs (e.g. POSIX ACL, NFSv4 ACL) the default for kernel and packages, except tmpfs, flash filesystems, @@ -880,17 +1253,14 @@ menu "Filesystem ACL and attr support options" config KERNEL_F2FS_FS_POSIX_ACL bool "Enable POSIX ACL for F2FS Filesystems" select KERNEL_FS_POSIX_ACL - default n config KERNEL_JFFS2_FS_POSIX_ACL bool "Enable POSIX ACL for JFFS2 Filesystems" select KERNEL_FS_POSIX_ACL - default n config KERNEL_TMPFS_POSIX_ACL bool "Enable POSIX ACL for TMPFS Filesystems" select KERNEL_FS_POSIX_ACL - default n config KERNEL_CIFS_ACL bool "Enable CIFS ACLs" @@ -913,15 +1283,12 @@ menu "Filesystem ACL and attr support options" config KERNEL_NFS_V3_ACL_SUPPORT bool "Enable ACLs for NFSv3" - default n config KERNEL_NFSD_V2_ACL_SUPPORT bool "Enable ACLs for NFSDv2" - default n config KERNEL_NFSD_V3_ACL_SUPPORT bool "Enable ACLs for NFSDv3" - default n config KERNEL_REISER_FS_POSIX_ACL bool "Enable POSIX ACLs for ReiserFS" @@ -959,8 +1326,11 @@ config KERNEL_SQUASHFS_FRAGMENT_CACHE_SIZE default 2 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT) default 3 +config KERNEL_SQUASHFS_XATTR + bool "Squashfs XATTR support" + # -# compile optimiziation setting +# compile optimization setting # choice prompt "Compiler optimization level" @@ -980,3 +1350,75 @@ config KERNEL_CC_OPTIMIZE_FOR_SIZE your compiler resulting in a smaller kernel. endchoice + +config KERNEL_AUDIT + bool "Auditing support" + +config KERNEL_SECURITY + bool "Enable different security models" + +config KERNEL_SECURITY_NETWORK + bool "Socket and Networking Security Hooks" + select KERNEL_SECURITY + +config KERNEL_SECURITY_SELINUX + bool "NSA SELinux Support" + select KERNEL_SECURITY_NETWORK + select KERNEL_AUDIT + +config KERNEL_SECURITY_SELINUX_BOOTPARAM + bool "NSA SELinux boot parameter" + depends on KERNEL_SECURITY_SELINUX + default y + +config KERNEL_SECURITY_SELINUX_DISABLE + bool "NSA SELinux runtime disable" + depends on KERNEL_SECURITY_SELINUX + +config KERNEL_SECURITY_SELINUX_DEVELOP + bool "NSA SELinux Development Support" + depends on KERNEL_SECURITY_SELINUX + default y + +config KERNEL_SECURITY_SELINUX_SIDTAB_HASH_BITS + int + depends on KERNEL_SECURITY_SELINUX + default 9 + +config KERNEL_SECURITY_SELINUX_SID2STR_CACHE_SIZE + int + depends on KERNEL_SECURITY_SELINUX + default 256 + +config KERNEL_LSM + string + default "lockdown,yama,loadpin,safesetid,integrity,selinux" + depends on KERNEL_SECURITY_SELINUX + +config KERNEL_EXT4_FS_SECURITY + bool "Ext4 Security Labels" + +config KERNEL_F2FS_FS_SECURITY + bool "F2FS Security Labels" + +config KERNEL_UBIFS_FS_SECURITY + bool "UBIFS Security Labels" + +config KERNEL_JFFS2_FS_SECURITY + bool "JFFS2 Security Labels" + +config KERNEL_WERROR + bool "Compile the kernel with warnings as errors" + default BUILDBOT + default y if GCC_USE_VERSION_12 + help + A kernel build should not cause any compiler warnings, and this + enables the '-Werror' (for C) and '-Dwarnings' (for Rust) flags + to enforce that rule by default. Certain warnings from other tools + such as the linker may be upgraded to errors with this option as + well. + + However, if you have a new (or very old) compiler or linker with odd + and unusual warnings, or you have some architecture with problems, + you may need to disable this config option in order to + successfully build the kernel.