[PATCH bpf-next v5 0/3] bpf, riscv: add timed may_goto support

[Björn Töpel]

Feng Jiang <jiangfeng at kylinos.cn> writes:

> This series adds RISC-V JIT support for the timed may_goto loop bound.
>
> Patch 1 implements arch_bpf_timed_may_goto() and enables
> bpf_jit_supports_timed_may_goto() so the verifier uses the timed
> expansion path.
>
> Patch 2 adds a test that checks R0-R5 are preserved across
> arch_bpf_timed_may_goto() calls.
>
> Patch 3 enables the verifier_may_goto_1, stream_cond_break, and
> may_goto_interaction fastcall tests on riscv64.
>
> Tested on riscv64 QEMU (rva23s64): may_goto programs load and JIT
> correctly, and the 250ms timeout path works as expected.
>
> Signed-off-by: Feng Jiang <jiangfeng at kylinos.cn>

Nice!

Reviewed-by: Björn Töpel <bjorn at kernel.org>
Acked-by: Björn Töpel <bjorn at kernel.org>