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igpu: WIP

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Daniel Samson
2026-07-30 03:53:34 +01:00
parent 6a687fbc2b
commit 198767bb30
5 changed files with 428 additions and 2 deletions
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docs/device-driver-development/drivers.md
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@@ -4,7 +4,9 @@ In a monolithic kernel a driver is a function call away from everything: it runs
ring 0, dereferences any physical address, and its interrupt handler *is* the ISR. In
danos a driver is **an ordinary ring-3 process**. It has its own address space, it
can crash without taking the kernel with it, and — the point of this document — it
can be restarted ([resilience](../os-development/resilience.md)).
can be restarted ([resilience](../os-development/resilience.md)). This document is
the reasoning; the condensed do-this-then-that version is the
[new-driver checklist](new-driver-checklist.md).
That leaves three questions the kernel has to answer, because a process can't answer
them for itself: