On Mon, Mar 22, 2021 at 9:54 PM Gedare Bloom <ged...@rtems.org> wrote:
> Hi Rajiv, > > On Sat, Mar 20, 2021 at 12:40 AM Rajiv Vaidyanathan > <rajiv.vaidyanath...@gmail.com> wrote: > > > > Hello RTEMS community, > Hello Rajiv, > > > > I am interested in the ticket: Memory protection. I saw that this topic > has been pursued a few times in GSoC. It would be great if someone can let > me know the current status of this project and guide me about what are the > contributions that can be done this year. > > > Yes, this is a frequently attempted project that slowly makes progress > over time. I think that Utkarsh has gotten somewhat close to a > workable solution, but there were some design flaws in his approach > for task stack protection (mainly, iterating over all the tasks) that > are still lingering. If you want to work on thread stack protection using MMU you can look at this thread <https://lists.rtems.org/pipermail/devel/2020-December/063606.html> for the issues with my solution and possible resolutions to them. You can clone the 'Final-release' branch of this <https://github.com/ur10/rtems> repo to get an idea of the changes/additions that I had done and refer to this blog <https://gsoc2020memoryprotection.blogspot.com/2020/05/what-is-thread-stack-protection-well.html> for a brief description of my idea behind making those changes/additions. Ideally, I would have liked to complete them for myself, this summer, but I am not sure if the time constraints that I have would allow me to pursue this right now. > There could be enough work here to pick up from his progress. The > major issue would be figuring out what the final state of his code is > in, and to dig in to the design and implementation details to write a > concrete proposal how to bring task stack protection to a production > state. There may be other directions to consider as well, such as > improving the risc-v MMU support perhaps. > > > Thanks and regards, > > Rajiv > > _______________________________________________ > > devel mailing list > > devel@rtems.org > > http://lists.rtems.org/mailman/listinfo/devel >
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