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A comment on Cervus: A WebAssembly subsystem for Linux.

Re:Cervus: A WebAssembly subsystem for Linux by zaarn on Wednesday May 30, 2018 @02:28AM (#17185524)
WA in the kernel could lead to drivers being established as WA code with special interfaces. With safe interfaces to stuff like PCIe devices, the linux kernel could transform into a more hybrid kernel, similar to NT. Many funs to be had!

I imagine it could also be useful to run user programs without having to switch rings all the time...

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Re:Cervus: A WebAssembly subsystem for Linux by sime2009 on Wednesday May 30, 2018 @04:50AM (#17186130)
> I imagine it could also be useful to run user programs without having to switch rings all the time

That is pretty much exactly what this project is aiming at:

"Cervus implements a WebAssembly "usermode" on top of the Linux kernel (which tries to follows the CommonWA specification), enabling wasm applications to run directly in ring 0, while still ensuring safety and security."

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Re:Cervus: A WebAssembly subsystem for Linux by jacobush on Wednesday May 30, 2018 @08:47AM (#17187222)
Reminds me of how Forth was supposed to be the language for drivers and such, write once, run everywhere drivers.
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