This is a bit of a tangent, but could the existing mechanisms be used to efficiently implement memory over-provisioning for non-critical processes, disk swapping, and copy-on-write page tables for a faster fork() implementation?

On Thu, Mar 7, 2024, 12:11 AM Christian Helmuth <christian.helmuth@genode-labs.com> wrote:
I have to correct myself...

On Thu, Mar 07, 2024 at 08:04:59 CET, Christian Helmuth wrote:
> and contains the current exception in 'Cpu_state::trapno' for x86
> [5], 'Cpu_state::cpu_exception' for arm v6/v7 [6], and seems to be
> missing for arm v8.

It seems ARMv8 provides an "exception syndrome" in
'Cpu_state::esr_el1', which should be what we're looking for and is
used by the monitor component ;-)

Greets
--
Christian Helmuth
Genode Labs

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