[seL4] seL4 developer hangout reminder

2024-06-05 Thread Birgit Brecknell
Hi all A friendly reminder that the seL4 developer hangout is on again next week. Tue 11 Jun, 22:00 UTC. For your local date and time please see https://sel4.systems/contact/. Zoom link: https://unsw.zoom.us/j/82640784431 Birgit Brecknell seL4 Foundation Project Coordinator Sydney, Australia M

[seL4] Re: Multikernel in RISCV

2024-06-05 Thread Indan Zupancic
Hello David, On 2024-06-05 15:40, David Martin wrote: that sounds like a real plan for me to test tomorrow :) and if I'm not mistaken, inside each kernel now, the function "seL4_Untyped_Retype" should be called twice (one on each core) pointing to the same "free memory" declared previously so it

[seL4] Re: Multikernel in RISCV

2024-06-05 Thread David Martin
Thanks Indan, that sounds like a real plan for me to test tomorrow :) and if I'm not mistaken, inside each kernel now, the function "seL4_Untyped_Retype" should be called twice (one on each core) pointing to the same "free memory" declared previously so it can be used as shared memory by both

[seL4] Re: Multikernel in RISCV

2024-06-05 Thread Indan Zupancic
Hello David, On 2024-06-05 14:56, David Martin wrote: If I'm not mistaken, that could be done using a chunk of memory defined as device untyped and then used by each kernel (for my tests, I'll use 2 harts) to write/read. --> Is that a good understanding on how shared memory is suppose to be use

[seL4] Re: Multikernel in RISCV

2024-06-05 Thread David Martin
Hello, Indeed I was able to have seL4 running on multiple harts. Now I want to add an extra layer of shared memory (I'm not going to dig into the notification mechanism for the moment). I just want to create a shared memory region between 2 harts and check that both can have access to it. If I'