gaming extensions to the kernel

Hi all, I have managed to create some exciting, gaming-specific extensions to the OpenBSD kernel, specifically for an arm64 raspberry pi 4. I would like to turn this into a product that people enjoy if possible and I would be happy to make something that benefits the OpenBSD community as well

allocating contiguous memory in user space

Hi all, is there any way in openbsd to allocate contiguous memory pages in user space? Thanks, A

Fwd: rethinking terminal login with security in mind

, A -- Forwarded message - From: Alessandro Pistocchi Date: Wed, May 5, 2021 at 1:39 AM Subject: rethinking terminal login with security in mind To: OpenBSD misc Hi all, I am a new user. I have been using openbsd for the last few weeks on a raspberry pi 4. I have used other unix flavours

rethinking terminal login with security in mind

Hi all, I am a new user. I have been using openbsd for the last few weeks on a raspberry pi 4. I have used other unix flavours in the past. I was wondering, what about changing how echoing of characters work when logging in from the terminal? Every unix I tried, including openbsd, asks for the

Re: Fwd: umm_map returns unaligned address?

at 2:32 AM Theo de Raadt wrote: > Alessandro Pistocchi wrote: > > > During the syscall I allocate some memory that I want to share between > the > > kernel and the calling process. > > When you get the mapping working, it will not work as well as you like. > &g

Re: umm_map returns unaligned address?

Fri, Apr 23, 2021 at 3:13 PM Alessandro Pistocchi < > apukbusin...@gmail.com> wrote: > >> -- Forwarded message - >> From: Alessandro Pistocchi >> Date: Fri, Apr 23, 2021 at 1:55 PM >> Subject: umm_map returns unaligned address? >> To: >>

Fwd: umm_map returns unaligned address?

-- Forwarded message - From: Alessandro Pistocchi Date: Fri, Apr 23, 2021 at 1:55 PM Subject: umm_map returns unaligned address? To: Hi all, I am fairly new to openbsd so if this is something obvious that I missed please be understanding. I am adding a syscall to openbsd 6.8

accessing user memory from kernel

Hi all, I am playing around with openbsd kernel source code. Is there any clean way of accessing a process' memory from inside the kernel? Thanks, Alessandro

adding a syscall to openbsd

Hi all, I am trying to figure out how to add a syscall to openbsd 6.8. I am following "OpenBSD Kernel Internals - The Hitchhiker's Guide" by Vladimir Kirillov. (https://atmnis.com/~proger/openkyiv/openkyiv2009_proger_sys.pdf). I could successfully add my syscall and call it by using