runtime-rs: add support for core scheduling

[xyjixyjixyji]

Linux 5.14 supports core scheduling to have better security control for SMT siblings. This PR supports that for Rust runtime when containerd enables SCHED_SCORE in its configuration.

Fixes: #4429 Signed-off-by: Ji-Xinyou [email protected]

[xyjixyjixyji]

Thanks @Jodh-Intel, there is still a design issue that i am not sure about and need your insight.

In shim_run.rs, I log a warning if containerd sets SCHED_CORE but the systemcall failed. But in kata runtime 2.x (go version), it looks to me that if the systemcall failed, the shim does not start at all. Instead, it just returns instead.

Which approach do you think is more appropriate, I am not really sure about this.

[jodh-intel]

@Ji-Xinyou - in which case, I think we should retain the existing behaviour. I assume you're referring to:

https://github.com/kata-containers/kata-containers/pull/4310

/cc @egernst.

[liubin]

Since runtime-rs has been merged, please change your target branch to main.

[xyjixyjixyji]

@liubin Done, target branch changed to main.

[katacontainersbot]

Can one of the admins verify this patch?

[liubin]

/test