linux-kernel - Re: [PATCH v2 0/8] Implement EBPF on powerpc32

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Date:   Sun, 11 Apr 2021 00:28:54 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        songliubraving@...com, Michael Ellerman <mpe@...erman.id.au>,
        kafai@...com, naveen.n.rao@...ux.ibm.com,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        daniel@...earbox.net, john.fastabend@...il.com,
        sandipan@...ux.ibm.com, yhs@...com, ast@...nel.org,
        kpsingh@...omium.org, andrii@...nel.org,
        Paul Mackerras <paulus@...ba.org>
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, netdev@...r.kernel.org
Subject: Re: [PATCH v2 0/8] Implement EBPF on powerpc32

On Mon, 22 Mar 2021 16:37:45 +0000 (UTC), Christophe Leroy wrote:
> This series implements extended BPF on powerpc32. For the implementation
> details, see the patch before the last.
> 
> The following operations are not implemented:
> 
> 		case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */
> 		case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */
> 		case BPF_STX | BPF_XADD | BPF_DW: /* *(u64 *)(dst + off) += src */
> 
> [...]

Applied to powerpc/next.

[1/8] powerpc/bpf: Remove classical BPF support for PPC32
      https://git.kernel.org/powerpc/c/6944caad78fc4de4ecd0364bbc9715b62b020965
[2/8] powerpc/bpf: Change register numbering for bpf_set/is_seen_register()
      https://git.kernel.org/powerpc/c/ed573b57e77a7860fe4026e1700faa2f6938caf1
[3/8] powerpc/bpf: Move common helpers into bpf_jit.h
      https://git.kernel.org/powerpc/c/f1b1583d5faa86cb3dcb7b740594868debad7c30
[4/8] powerpc/bpf: Move common functions into bpf_jit_comp.c
      https://git.kernel.org/powerpc/c/4ea76e90a97d22f86adbb10044d29d919e620f2e
[5/8] powerpc/bpf: Change values of SEEN_ flags
      https://git.kernel.org/powerpc/c/c426810fcf9f96e3b43d16039e41ecb959f6dc29
[6/8] powerpc/asm: Add some opcodes in asm/ppc-opcode.h for PPC32 eBPF
      https://git.kernel.org/powerpc/c/355a8d26cd0416e7e764e4db766cf91e773a03e7
[7/8] powerpc/bpf: Implement extended BPF on PPC32
      https://git.kernel.org/powerpc/c/51c66ad849a703d9bbfd7704c941827aed0fd9fd
[8/8] powerpc/bpf: Reallocate BPF registers to volatile registers when possible on PPC32
      https://git.kernel.org/powerpc/c/40272035e1d0edcd515ad45be297c4cce044536d

cheers