Re: [PATCH bpf-next v2 3/3] bpf, riscv: use prog pack allocator in the BPF JIT

Song Liu
2023-08-24T22:19:20Z

On Thu, Aug 24, 2023 at 6:31 AM Puranjay Mohan <puranjay12@gmail.com> wrote:
>
> Use bpf_jit_binary_pack_alloc() for memory management of JIT binaries in
> RISCV BPF JIT. The bpf_jit_binary_pack_alloc creates a pair of RW and RX
> buffers. The JIT writes the program into the RW buffer. When the JIT is
> done, the program is copied to the final RX buffer with
> bpf_jit_binary_pack_finalize.
>
> Implement bpf_arch_text_copy() and bpf_arch_text_invalidate() for RISCV
> JIT as these functions are required by bpf_jit_binary_pack allocator.
>
> Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>

LGTM.

Reviewed-by: Song Liu <song@kernel.org> …