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index: add some description of xous

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Signed-off-by: Sean Cross <sean@xobs.io>
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Sean Cross 2020-01-03 14:13:18 +08:00
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@ -223,6 +223,41 @@
</section> </section>
</section> </section>
<section>
<section>
<h2>Xous: System Design</h2>
<aside class="notes">
Xous is, currently, very much under development. However, there has
been a lot of planning.
</aside>
</section>
<section>
<h2>Xous: Memory Model</h2>
<aside class="notes">
Xous will base its memory model on the Rust borrow checker. That is,
shared memory will be used for IPC. If one process wishes to get a
response from another, it can pass pages via a mutable borrow. If
a process wishes to share pages across multiple process, then only an
immutable borrow may be made, and the sharing process cannot access
pages until all processes have returned the memory.
A process can move memory into another, which for example is how
process spawning works. In such a case, memory is no longer available
in the sending process.
</aside>
</section>
<section>
<h2>Xous: Missing Features</h2>
<aside class="notes">
Xous has no fork(). Instead it will have spawn().
Shared libraries aren't available at the start, but may come later.
</aside>
</section>
</section>
</div> </div>
</div> <!-- class="reveal" --> </div> <!-- class="reveal" -->
<!-- End of main presentation --> <!-- End of main presentation -->