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lastdragon
2026-09-06 12:53:21 -06:00
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linux-7.2.3/Documentation/features/arch-support.txt
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For generic kernel features that need architecture support, the
arch-support.txt file in each feature directory shows the arch
support matrix, for all upstream Linux architectures.
The meaning of entries in the tables is:
| ok | # feature supported by the architecture
|TODO| # feature not yet supported by the architecture
| .. | # feature cannot be supported by the hardware
| N/A| # feature doesn't apply to the architecture
linux-7.2.3/Documentation/features/core/cBPF-JIT/arch-support.txt
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#
# Feature name: cBPF-JIT
# Kconfig: HAVE_CBPF_JIT
# description: arch supports cBPF JIT optimizations
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | TODO |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/core/eBPF-JIT/arch-support.txt
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#
# Feature name: eBPF-JIT
# Kconfig: HAVE_EBPF_JIT
# description: arch supports eBPF JIT optimizations
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/core/generic-idle-thread/arch-support.txt
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#
# Feature name: generic-idle-thread
# Kconfig: GENERIC_SMP_IDLE_THREAD
# description: arch makes use of the generic SMP idle thread facility
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/core/jump-labels/arch-support.txt
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#
# Feature name: jump-labels
# Kconfig: HAVE_ARCH_JUMP_LABEL
# description: arch supports live patched, high efficiency branches
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/core/mseal_sys_mappings/arch-support.txt
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#
# Feature name: mseal-system-mappings
# Kconfig: ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS
# description: arch supports mseal system mappings
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | N/A |
| arm: | N/A |
| arm64: | ok |
| csky: | N/A |
| hexagon: | N/A |
| loongarch: | ok |
| m68k: | N/A |
| microblaze: | N/A |
| mips: | TODO |
| nios2: | N/A |
| openrisc: | N/A |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | ok |
| s390: | ok |
| sh: | N/A |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | N/A |
-----------------------
linux-7.2.3/Documentation/features/core/thread-info-in-task/arch-support.txt
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#
# Feature name: thread-info-in-task
# Kconfig: THREAD_INFO_IN_TASK
# description: arch makes use of the core kernel facility to embed thread_info in task_struct
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | ok |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/core/tracehook/arch-support.txt
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#
# Feature name: tracehook
# Kconfig: HAVE_ARCH_TRACEHOOK
# description: arch supports tracehook (ptrace) register handling APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/KASAN/arch-support.txt
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#
# Feature name: KASAN
# Kconfig: HAVE_ARCH_KASAN
# description: arch supports the KASAN runtime memory checker
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
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#
# Feature name: debug-vm-pgtable
# Kconfig: ARCH_HAS_DEBUG_VM_PGTABLE
# description: arch supports pgtable tests for semantics compliance
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | TODO |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/gcov-profile-all/arch-support.txt
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#
# Feature name: gcov-profile-all
# Kconfig: ARCH_HAS_GCOV_PROFILE_ALL
# description: arch supports whole-kernel GCOV code coverage profiling
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/kcov/arch-support.txt
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#
# Feature name: kcov
# Kconfig: ARCH_HAS_KCOV
# description: arch supports kcov for coverage-guided fuzzing
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/kgdb/arch-support.txt
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#
# Feature name: kgdb
# Kconfig: HAVE_ARCH_KGDB
# description: arch supports the kGDB kernel debugger
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | ok |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/kmemleak/arch-support.txt
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#
# Feature name: kmemleak
# Kconfig: HAVE_DEBUG_KMEMLEAK
# description: arch supports the kernel memory leak detector
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
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#
# Feature name: kprobes-on-ftrace
# Kconfig: HAVE_KPROBES_ON_FTRACE
# description: arch supports combined kprobes and ftrace live patching
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/kprobes/arch-support.txt
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#
# Feature name: kprobes
# Kconfig: HAVE_KPROBES
# description: arch supports live patched kernel probe
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/kretprobes/arch-support.txt
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#
# Feature name: kretprobes
# Kconfig: HAVE_KRETPROBES
# description: arch supports kernel function-return probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/optprobes/arch-support.txt
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#
# Feature name: optprobes
# Kconfig: HAVE_OPTPROBES
# description: arch supports live patched optprobes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/stackprotector/arch-support.txt
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#
# Feature name: stackprotector
# Kconfig: HAVE_STACKPROTECTOR
# description: arch supports compiler driven stack overflow protection
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/debug/uprobes/arch-support.txt
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#
# Feature name: uprobes
# Kconfig: ARCH_SUPPORTS_UPROBES
# description: arch supports live patched user probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/debug/user-ret-profiler/arch-support.txt
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#
# Feature name: user-ret-profiler
# Kconfig: HAVE_USER_RETURN_NOTIFIER
# description: arch supports user-space return from system call profiler
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/io/dma-contiguous/arch-support.txt
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#
# Feature name: dma-contiguous
# Kconfig: HAVE_DMA_CONTIGUOUS
# description: arch supports the DMA CMA (continuous memory allocator)
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/locking/cmpxchg-local/arch-support.txt
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#
# Feature name: cmpxchg-local
# Kconfig: HAVE_CMPXCHG_LOCAL
# description: arch supports the this_cpu_cmpxchg() API
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/locking/lockdep/arch-support.txt
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#
# Feature name: lockdep
# Kconfig: LOCKDEP_SUPPORT
# description: arch supports the runtime locking correctness debug facility
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/locking/queued-rwlocks/arch-support.txt
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#
# Feature name: queued-rwlocks
# Kconfig: ARCH_USE_QUEUED_RWLOCKS
# description: arch supports queued rwlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/locking/queued-spinlocks/arch-support.txt
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#
# Feature name: queued-spinlocks
# Kconfig: ARCH_USE_QUEUED_SPINLOCKS
# description: arch supports queued spinlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/perf/kprobes-event/arch-support.txt
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#
# Feature name: kprobes-event
# Kconfig: HAVE_REGS_AND_STACK_ACCESS_API
# description: arch supports kprobes with perf events
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/perf/perf-regs/arch-support.txt
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#
# Feature name: perf-regs
# Kconfig: HAVE_PERF_REGS
# description: arch supports perf events register access
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/perf/perf-stackdump/arch-support.txt
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#
# Feature name: perf-stackdump
# Kconfig: HAVE_PERF_USER_STACK_DUMP
# description: arch supports perf events stack dumps
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/sched/membarrier-sync-core/arch-support.txt
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#
# Feature name: membarrier-sync-core
# Kconfig: ARCH_HAS_MEMBARRIER_SYNC_CORE
# description: arch supports core serializing membarrier
#
# Architecture requirements
#
# * arm/arm64/powerpc/s390
#
# Rely on implicit context synchronization as a result of exception return
# when returning from IPI handler, and when returning to user-space.
#
# * riscv
#
# riscv uses xRET as return from interrupt and to return to user-space.
#
# Given that xRET is not core serializing, we rely on FENCE.I for providing
# core serialization:
#
# - by calling sync_core_before_usermode() on return from interrupt (cf.
# ipi_sync_core()),
#
# - via switch_mm() and sync_core_before_usermode() (respectively, for
# uthread->uthread and kthread->uthread transitions) before returning
# to user-space.
#
# The serialization in switch_mm() is activated by prepare_sync_core_cmd().
#
# * x86
#
# x86-32 uses IRET as return from interrupt, which takes care of the IPI.
# However, it uses both IRET and SYSEXIT to go back to user-space. The IRET
# instruction is core serializing, but not SYSEXIT.
#
# x86-64 uses IRET as return from interrupt, which takes care of the IPI.
# However, it can return to user-space through either SYSRETL (compat code),
# SYSRETQ, or IRET.
#
# Given that neither SYSRET{L,Q}, nor SYSEXIT, are core serializing, we rely
# instead on write_cr3() performed by switch_mm() to provide core serialization
# after changing the current mm, and deal with the special case of kthread ->
# uthread (temporarily keeping current mm into active_mm) by issuing a
# sync_core_before_usermode() in that specific case.
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/sched/numa-balancing/arch-support.txt
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#
# Feature name: numa-balancing
# Kconfig: ARCH_SUPPORTS_NUMA_BALANCING
# description: arch supports NUMA balancing
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
| arm64: | ok |
| csky: | .. |
| hexagon: | .. |
| loongarch: | ok |
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | .. |
| sparc: | TODO |
| um: | .. |
| x86: | ok |
| xtensa: | .. |
-----------------------
linux-7.2.3/Documentation/features/seccomp/seccomp-filter/arch-support.txt
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#
# Feature name: seccomp-filter
# Kconfig: HAVE_ARCH_SECCOMP_FILTER
# description: arch supports seccomp filters
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | ok |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/time/arch-tick-broadcast/arch-support.txt
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#
# Feature name: arch-tick-broadcast
# Kconfig: ARCH_HAS_TICK_BROADCAST
# description: arch provides tick_broadcast()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | ok |
| sparc: | TODO |
| um: | TODO |
| x86: | TODO |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/time/clockevents/arch-support.txt
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#
# Feature name: clockevents
# Kconfig: !LEGACY_TIMER_TICK
# description: arch support generic clock events
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | TODO |
| arm64: | ok |
| csky: | ok |
| hexagon: | ok |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/time/context-tracking/arch-support.txt
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#
# Feature name: user-context-tracking
# Kconfig: HAVE_CONTEXT_TRACKING_USER
# description: arch supports user context tracking for NO_HZ_FULL
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/time/irq-time-acct/arch-support.txt
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#
# Feature name: irq-time-acct
# Kconfig: HAVE_IRQ_TIME_ACCOUNTING
# description: arch supports precise IRQ time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | .. |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | .. |
| powerpc: | ok |
| riscv: | ok |
| s390: | .. |
| sh: | TODO |
| sparc: | .. |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/time/virt-cpuacct/arch-support.txt
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#
# Feature name: virt-cpuacct
# Kconfig: HAVE_VIRT_CPU_ACCOUNTING
# description: arch supports precise virtual CPU time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
linux-7.2.3/Documentation/features/vm/ELF-ASLR/arch-support.txt
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#
# Feature name: ELF-ASLR
# Kconfig: ARCH_HAS_ELF_RANDOMIZE
# Kconfig: ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
# description: arch randomizes the stack, heap and binary images of ELF binaries
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| csky: | ok |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/vm/THP/arch-support.txt
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#
# Feature name: THP
# Kconfig: HAVE_ARCH_TRANSPARENT_HUGEPAGE
# description: arch supports transparent hugepages
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | .. |
| hexagon: | .. |
| loongarch: | ok |
| m68k: | .. |
| microblaze: | .. |
| mips: | ok |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | .. |
| sparc: | ok |
| um: | .. |
| x86: | ok |
| xtensa: | .. |
-----------------------
linux-7.2.3/Documentation/features/vm/TLB/arch-support.txt
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#
# Feature name: batch-unmap-tlb-flush
# Kconfig: ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
# description: arch supports deferral of TLB flush until multiple pages are unmapped
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | ok |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| um: | .. |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/vm/huge-vmap/arch-support.txt
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#
# Feature name: huge-vmap
# Kconfig: HAVE_ARCH_HUGE_VMAP
# description: arch supports the arch_vmap_pud_supported() and arch_vmap_pmd_supported() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/vm/ioremap_prot/arch-support.txt
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#
# Feature name: ioremap_prot
# Kconfig: HAVE_IOREMAP_PROT
# description: arch has ioremap_prot()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | TODO |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
linux-7.2.3/Documentation/features/vm/pte_special/arch-support.txt
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#
# Feature name: pte_special
# Kconfig: ARCH_HAS_PTE_SPECIAL
# description: arch supports the pte_special()/pte_mkspecial() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------