Question about memory management in L4 Fiasco O.C + L4re

Adam Lackorzynski adam at
Sat Nov 21 22:43:11 CET 2015


On Fri Nov 20, 2015 at 16:00:58 +0100, Mahdi Aichouch wrote:
> The UTCB is allocated as a physical memory page, which is a 4KB if a small
> page is used, right?

The default is 4k, yes.

> Do you think that it is possible to allocated a 16KB or 32KB UTCB area, and
> to align their physical start address on 16KB or 32KB?

Yes, possible. Look at the l4_task_add_ku_mem function in l4sys.

Adam                 adam at

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