Re: [RFC PATCH RESEND bpf-next 0/4] Support bpf trampoline for RV64

[Pu Lehui]

On 2022/12/22 21:00, Björn Töpel wrote:
> Pu Lehui <pulehui@xxxxxxxxxxxxxxx> writes:
>
> > BPF trampoline is the critical infrastructure of the bpf
> > subsystem, acting as a mediator between kernel functions
> > and BPF programs. Numerous important features, such as
> > using ebpf program for zero overhead kernel introspection,
> > rely on this key component. We can't wait to support bpf
> > trampoline on RV64. The implementation of bpf trampoline
> > was closely to x86 and arm64 for future development.
>
> Thank you for working on this! BPF trampoline is the "missing piece"
> from getting proper kfunc support.
>
> Unfortunately, I wont be able to do a proper review until next week.

Take your time, it might take several rounds of optimization. Yep, riscv 
bpf will look more complete when bpf trampoline and kfunc are supported.

Anyway, have a nice christmas holidays.😄

Lehui

> Happy holidays,
> Björn