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microkernel

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A kernel is the heart of almost every operating system. It is always loaded in memory at any time and deals with the hardware to provide an interface for the software. It also manages peripherals, memory, interrupts, and processes. Examples of widely used kernels include Windows NT and Linux.

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seL4 / seL4

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Not all error returns have a userError call prior to return

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bennoleslie
bennoleslie commented Sep 6, 2021

Most of the times when an invocation fails it calls userError to provide some additional diagnostics about what is going wrong.

However, there are a few places over the kernel where this is missed. It would be great to have this in all places.

As an extension it would be even better to include additional diagnostics information on the failure. For example:

    if (length < 6 || cur
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enhancement good first issue

managarm / managarm

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thor: Refactor mbus infrastructure

avdgrinten
avdgrinten commented May 26, 2021

Thor currently creates objects over the mbus protocol at various places (see below for a list); it does that by directly constructing protocol messages. To make the code more maintainable (e.g., such that we can later restructure the architecture of mbus and resolve issues #158 #159 #160), it would be beneficial to refactor Thor to use an abstraction over mbus instead. This abstraction can be simi

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enhancement good first issue
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hex-five / multizone-sdk

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MultiZone® Security TEE is the quick and safe way to add security and separation to any RISC-V processors. The RISC-V standard ISA doesn't define TrustZone-like primitives to provide hardware separation. To shield critical functionality from untrusted third-party components, MultiZone provides hardware-enforced, software-defined separation of multiple equally secure worlds. Unlike antiquated hypervisor-like solutions, MultiZone is self-contained, presents an extremely small attack surface, and it is policy driven, meaning that no coding is required – and in fact even allowed. MultiZone works with any 32-bit or 64-bit RISC-V processors with standard Physical Memory Protection unit (PMP) and “U” mode.

security fpga firmware hypervisor container freertos xilinx microkernel secure-boot risc-v trustzone tee arty trusted-computing sifive multizone trusted-execution-environment secure-element root-of-trust polarfire-soc
  • Updated Feb 24, 2022
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