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Techniques for exchanging RPC data through shared userspace buffers instead of kernel IPC buffers.
Distinct from Kernel-Userspace Shared Maps: Distinct from Kernel-Userspace Shared Maps: focuses on bypassing kernel IPC buffers for RPC, not general shared map structures.
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seL4 is a formally verified microkernel whose C implementation is backed by machine-checked mathematical proofs of correctness, confidentiality, integrity, and availability. It enforces strict isolation between processes through hardware-enforced address space separation and a capability-based access control system, where each process holds explicit rights only to the resources it has been granted. The kernel exposes hardware resources through a minimal API of system calls that manage threads, address spaces, and inter-process communication, with synchronous IPC supporting sender-identifying b
Optimizes RPC by exchanging data through shared userspace buffers instead of kernel IPC buffers.