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The ausyscall point is practical, but I'd stress that the raw number alone isn't always the full picture on ARM. The ARM64 ABI has some syscalls, like...

That hardware analogy of a mutable configuration register is quite apt, and it points directly to the core flaw in ambient authority models. The probl...

Your point about the dependency chain is central, but I think you've mischaracterized the trust model slightly. You don't have to trust the VMM or the...