所有架构上的功能状态

子系统：核心

功能	Kconfig / 说明	每个架构的状态
cBPF-JIT	HAVE_CBPF_JIT 架构支持 cBPF JIT 优化	ok: mips, powerpc sparc TODO: alpha, arc, arm arm64, csky, hexagon loongarch, m68k, microblaze nios2, openrisc, parisc riscv, s390, sh, um, x86 xtensa
eBPF-JIT	HAVE_EBPF_JIT 架构支持 eBPF JIT 优化	ok: arm, arm64 loongarch, mips, powerpc riscv, s390, sparc, x86 TODO: alpha, arc, csky hexagon, m68k, microblaze nios2, openrisc, parisc, sh um, xtensa
generic-idle-thread	GENERIC_SMP_IDLE_THREAD 架构使用通用的 SMP 空闲线程工具	ok: alpha, arc, arm arm64, csky, hexagon loongarch, mips, openrisc parisc, powerpc, riscv s390, sh, sparc, x86 xtensa TODO: m68k, microblaze nios2, um
jump-labels	HAVE_ARCH_JUMP_LABEL 架构支持实时修补、高效率的分支	ok: arc, arm, arm64 csky, loongarch, mips parisc, powerpc, riscv s390, sparc, x86, xtensa TODO: alpha, hexagon m68k, microblaze, nios2 openrisc, sh, um
thread-info-in-task	THREAD_INFO_IN_TASK 架构使用核心内核工具将 thread_info 嵌入 task_struct 中	ok: arm, arm64, parisc powerpc, riscv, s390, x86 TODO: alpha, arc, csky hexagon, loongarch, m68k microblaze, mips, nios2 openrisc, sh, sparc, um xtensa
tracehook	HAVE_ARCH_TRACEHOOK 架构支持 tracehook (ptrace) 寄存器处理 API	ok: arc, arm, arm64 csky, hexagon, loongarch mips, nios2, openrisc parisc, powerpc, riscv s390, sh, sparc, x86 xtensa TODO: alpha, m68k microblaze, um

子系统：调试

功能	Kconfig / 说明	每个架构的状态
debug-vm-pgtable	ARCH_HAS_DEBUG_VM_PGTABLE 架构支持用于语义合规性的 pgtable 测试	ok: arc, arm64 loongarch, parisc, powerpc riscv, s390, x86, xtensa TODO: alpha, arm, csky hexagon, m68k, microblaze mips, nios2, openrisc, sh sparc, um
gcov-profile-all	ARCH_HAS_GCOV_PROFILE_ALL 架构支持整个内核 GCOV 代码覆盖率分析	ok: arm, arm64, csky microblaze, mips, powerpc riscv, s390, sh, um, x86 xtensa TODO: alpha, arc hexagon, loongarch, m68k nios2, openrisc, parisc sparc
KASAN	HAVE_ARCH_KASAN 架构支持 KASAN 运行时内存检查器	ok: arm, arm64 loongarch, powerpc, riscv s390, um, x86, xtensa TODO: alpha, arc, csky hexagon, m68k, microblaze mips, nios2, openrisc parisc, sh, sparc
kcov	ARCH_HAS_KCOV 架构支持 kcov 用于覆盖引导的模糊测试	ok: arm, arm64 loongarch, mips, powerpc riscv, s390, um, x86 xtensa TODO: alpha, arc, csky hexagon, m68k, microblaze nios2, openrisc, parisc, sh sparc
kgdb	HAVE_ARCH_KGDB 架构支持 kGDB 内核调试器	ok: arc, arm, arm64 hexagon, loongarch microblaze, mips, nios2 parisc, powerpc, riscv, sh sparc, x86 TODO: alpha, csky, m68k openrisc, s390, um, xtensa
kmemleak	HAVE_DEBUG_KMEMLEAK 架构支持内核内存泄漏检测器	ok: arc, arm, arm64 csky, loongarch, microblaze mips, powerpc, riscv, s390 sh, sparc, um, x86, xtensa TODO: alpha, hexagon m68k, nios2, openrisc parisc
kprobes	HAVE_KPROBES 架构支持实时修补的内核探针	ok: arc, arm, arm64 csky, loongarch, mips parisc, powerpc, riscv s390, sh, sparc, x86 TODO: alpha, hexagon m68k, microblaze, nios2 openrisc, um, xtensa
kprobes-on-ftrace	HAVE_KPROBES_ON_FTRACE 架构支持组合的 kprobes 和 ftrace 实时修补	ok: csky, loongarch parisc, powerpc, riscv s390, x86 TODO: alpha, arc, arm arm64, hexagon, m68k microblaze, mips, nios2 openrisc, sh, sparc, um xtensa
kretprobes	HAVE_KRETPROBES 架构支持内核函数返回探针	ok: arc, arm, arm64 csky, loongarch, mips parisc, powerpc, riscv s390, sh, sparc, x86 TODO: alpha, hexagon m68k, microblaze, nios2 openrisc, um, xtensa
optprobes	HAVE_OPTPROBES 架构支持实时修补的 optprobes	ok: arm, powerpc, x86 TODO: alpha, arc, arm64 csky, hexagon, loongarch m68k, microblaze, mips nios2, openrisc, parisc riscv, s390, sh, sparc, um xtensa
stackprotector	HAVE_STACKPROTECTOR 架构支持编译器驱动的堆栈溢出保护	ok: arm, arm64, csky loongarch, mips, powerpc riscv, sh, x86, xtensa TODO: alpha, arc hexagon, m68k, microblaze nios2, openrisc, parisc s390, sparc, um
uprobes	ARCH_SUPPORTS_UPROBES 架构支持实时修补的用户探针	ok: arm, arm64, csky loongarch, mips, powerpc riscv, s390, sparc, x86 TODO: alpha, arc hexagon, m68k, microblaze nios2, openrisc, parisc, sh um, xtensa
user-ret-profiler	HAVE_USER_RETURN_NOTIFIER 架构支持从系统调用返回的用户空间分析器	ok: x86 TODO: alpha, arc, arm arm64, csky, hexagon loongarch, m68k, microblaze mips, nios2, openrisc parisc, powerpc, riscv s390, sh, sparc, um, xtensa

子系统：io

功能	Kconfig / 说明	每个架构的状态
dma-contiguous	HAVE_DMA_CONTIGUOUS 架构支持 DMA CMA（连续内存分配器）	ok: arm, arm64, csky loongarch, microblaze, mips riscv, s390, x86, xtensa TODO: alpha, arc hexagon, m68k, nios2 openrisc, parisc, powerpc sh, sparc, um

子系统：锁机制

功能	Kconfig / 说明	每个架构的状态
cmpxchg-local	HAVE_CMPXCHG_LOCAL 架构支持 this_cpu_cmpxchg() API	ok: arm64, s390, x86 TODO: alpha, arc, arm csky, hexagon, loongarch m68k, microblaze, mips nios2, openrisc, parisc powerpc, riscv, sh, sparc um, xtensa
lockdep	LOCKDEP_SUPPORT 架构支持运行时锁正确性调试工具	ok: arc, arm, arm64, csky, hexagon, loongarch, microblaze, mips, openrisc, parisc, powerpc, riscv, s390, sh, sparc, um, x86, xtensa TODO: alpha, m68k, nios2
排队读写锁	ARCH_USE_QUEUED_RWLOCKS 架构支持排队读写锁	ok: arm64, csky, loongarch, mips, openrisc, powerpc, riscv, sparc, x86, xtensa TODO: alpha, arc, arm, hexagon, m68k, microblaze, nios2, parisc, s390, sh, um
排队自旋锁	ARCH_USE_QUEUED_SPINLOCKS 架构支持排队自旋锁	ok: arm64, csky, loongarch, mips, openrisc, powerpc, riscv, sparc, x86, xtensa TODO: alpha, arc, arm, hexagon, m68k, microblaze, nios2, parisc, s390, sh, um

子系统: perf

功能	Kconfig / 说明	每个架构的状态
kprobes-event	HAVE_REGS_AND_STACK_ACCESS_API 架构支持带有 perf 事件的 kprobes	ok: arc, arm, arm64, csky, hexagon, loongarch, mips, parisc, powerpc, riscv, s390, sh, sparc, x86 TODO: alpha, m68k, microblaze, nios2, openrisc, um, xtensa
perf-regs	HAVE_PERF_REGS 架构支持 perf 事件寄存器访问	ok: arm, arm64, csky, loongarch, mips, powerpc, riscv, s390, x86 TODO: alpha, arc, hexagon, m68k, microblaze, nios2, openrisc, parisc, sh, sparc, um, xtensa
perf-stackdump	HAVE_PERF_USER_STACK_DUMP 架构支持 perf 事件堆栈转储	ok: arm, arm64, csky, loongarch, mips, powerpc, riscv, s390, x86 TODO: alpha, arc, hexagon, m68k, microblaze, nios2, openrisc, parisc, sh, sparc, um, xtensa

子系统: sched

功能	Kconfig / 说明	每个架构的状态
membarrier-sync-core	ARCH_HAS_MEMBARRIER_SYNC_CORE 架构支持核心串行化 membarrier	ok: arm, arm64, powerpc, riscv, s390, x86 TODO: alpha, arc, csky, hexagon, loongarch, m68k, microblaze, mips, nios2, openrisc, parisc, sh, sparc, um, xtensa
numa-balancing	ARCH_SUPPORTS_NUMA_BALANCING 架构支持 NUMA 平衡	ok: arm64, loongarch, powerpc, riscv, s390, x86 TODO: alpha, mips, sparc 不兼容: arc, arm, csky, hexagon, m68k, microblaze, nios2, openrisc, parisc, sh, um, xtensa

子系统: seccomp

功能	Kconfig / 说明	每个架构的状态
seccomp-filter	HAVE_ARCH_SECCOMP_FILTER 架构支持 seccomp 过滤器	ok: arm, arm64, csky, loongarch, m68k, mips, parisc, powerpc, riscv, s390, sh, um, x86, xtensa TODO: alpha, arc, hexagon, microblaze, nios2, openrisc, sparc

子系统: time

功能	Kconfig / 说明	每个架构的状态
arch-tick-broadcast	ARCH_HAS_TICK_BROADCAST 架构提供 tick_broadcast()	ok: arm, arm64, loongarch, mips, powerpc, riscv, sh TODO: alpha, arc, csky, hexagon, m68k, microblaze, nios2, openrisc, parisc, s390, sparc, um, x86, xtensa
clockevents	!LEGACY_TIMER_TICK 架构支持通用时钟事件	ok: alpha, arc, arm64, csky, hexagon, loongarch, microblaze, mips, nios2, openrisc, powerpc, riscv, s390, sh, sparc, um, x86, xtensa TODO: arm, m68k, parisc
irq-time-acct	HAVE_IRQ_TIME_ACCOUNTING 架构支持精确的 IRQ 时间统计	ok: arm, arm64, loongarch, mips, powerpc, riscv, x86, xtensa TODO: arc, csky, hexagon, m68k, microblaze, nios2, openrisc, sh, um 不兼容: alpha, parisc, s390, sparc
user-context-tracking	HAVE_CONTEXT_TRACKING_USER 架构支持 NO_HZ_FULL 的用户上下文跟踪	ok: arm, arm64, csky, loongarch, mips, powerpc, riscv, sparc, x86, xtensa TODO: alpha, arc, hexagon, m68k, microblaze, nios2, openrisc, parisc, s390, sh, um
virt-cpuacct	HAVE_VIRT_CPU_ACCOUNTING 架构支持精确的虚拟 CPU 时间统计	ok: alpha, arm, arm64, csky, loongarch, mips, parisc, powerpc, s390, sparc, x86, xtensa TODO: arc, hexagon, m68k, microblaze, nios2, openrisc, riscv, sh, um

子系统: vm

功能	Kconfig / 说明	每个架构的状态
batch-unmap-tlb-flush	ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH 架构支持推迟 TLB 刷新，直到多个页面被取消映射	ok: arm64, riscv, x86 TODO: alpha, arc, arm, csky, hexagon, loongarch, mips, parisc, powerpc, s390, sh, sparc, xtensa 不兼容: m68k, microblaze, nios2, openrisc, um
ELF-ASLR	ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT 架构随机化 ELF 二进制文件的堆栈、堆和二进制映像	ok: arm, arm64, csky, loongarch, mips, parisc, powerpc, riscv, s390, x86 TODO: alpha, arc, hexagon, m68k, microblaze, nios2, openrisc, sh, sparc, um, xtensa
huge-vmap	HAVE_ARCH_HUGE_VMAP 架构支持 arch_vmap_pud_supported() 和 arch_vmap_pmd_supported() VM API	ok: arm64, powerpc, riscv, x86 TODO: alpha, arc, arm, csky, hexagon, loongarch, m68k, microblaze, mips, nios2, openrisc, parisc, s390, sh, sparc, um, xtensa
ioremap_prot	HAVE_IOREMAP_PROT 架构具有 ioremap_prot()	ok: arc, arm64, loongarch, mips, powerpc, s390, sh, x86 TODO: alpha, arm, csky, hexagon, m68k, microblaze, nios2, openrisc, parisc, riscv, sparc, um, xtensa
pte_special	ARCH_HAS_PTE_SPECIAL 架构支持 pte_special()/pte_mkspecial() VM API	ok: arc, arm, arm64, loongarch, mips, parisc, powerpc, riscv, s390, sh, sparc, x86 TODO: alpha, csky, hexagon, m68k, microblaze, nios2, openrisc, um, xtensa
THP	HAVE_ARCH_TRANSPARENT_HUGEPAGE 架构支持透明大页	ok: arc, arm, arm64, loongarch, mips, powerpc, riscv, s390, sparc, x86 TODO: alpha, parisc 不兼容: csky, hexagon, m68k, microblaze, nios2, openrisc, sh, um, xtensa