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

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IOCTLs¶

Ioctl Numbers
Decoding an IOCTL Magic Number
Summary of CDROM ioctl calls
Summary of HDIO_ ioctl calls

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