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The Linux Kernel

6.9.0-rc4

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Contents

  • unshare system call
  • futex2
  • eBPF Userspace API
  • IOCTLs
  • No New Privileges Flag
  • Seccomp BPF (SECure COMPuting with filters)
  • Landlock: unprivileged access control
  • Linux Security Modules
  • Speculation Control
  • TEE (Trusted Execution Environment) Userspace API
  • OpenCAPI (Open Coherent Accelerator Processor Interface)
  • Exchanging pixel buffers
  • GPIO
  • IOMMU Userspace API
  • IOMMUFD
  • Linux Media Infrastructure userspace API
  • Dell Systems Management Base Driver
  • VDUSE - “vDPA Device in Userspace”
  • ISA Plug & Play support
  • Linux-specific ELF idiosyncrasies
  • Netlink Handbook
  • Platform Profile Selection (e.g. /sys/firmware/acpi/platform_profile)
  • VDUSE - “vDPA Device in Userspace”
  • futex2
  • Perf ring buffer
  • NT synchronization primitive driver

This Page

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The Linux kernel user-space API guide¶

While much of the kernel’s user-space API is documented elsewhere (particularly in the man-pages project), some user-space information can also be found in the kernel tree itself. This manual is intended to be the place where this information is gathered.

System calls¶

  • unshare system call
  • futex2
  • eBPF Userspace API
  • IOCTLs

Security-related interfaces¶

  • No New Privileges Flag
  • Seccomp BPF (SECure COMPuting with filters)
  • Landlock: unprivileged access control
  • Linux Security Modules
  • Speculation Control
  • TEE (Trusted Execution Environment) Userspace API

Devices and I/O¶

  • OpenCAPI (Open Coherent Accelerator Processor Interface)
  • Exchanging pixel buffers
  • GPIO
  • IOMMU Userspace API
  • IOMMUFD
  • Linux Media Infrastructure userspace API
  • Dell Systems Management Base Driver
  • VDUSE - “vDPA Device in Userspace”
  • ISA Plug & Play support

Everything else¶

  • Linux-specific ELF idiosyncrasies
  • Netlink Handbook
  • Platform Profile Selection (e.g. /sys/firmware/acpi/platform_profile)
  • VDUSE - “vDPA Device in Userspace”
  • futex2
  • Perf ring buffer
  • NT synchronization primitive driver

Indices¶

  • Index

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