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| author |   Jiong Wang <jiong.wang@netronome.com> | 2018-12-05 13:52:30 -0500 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2018-12-07 13:30:48 -0800 |
| commit | ee94b90c8acaa593b627f5f3fe93e076e7779f5c (patch) | |
| tree | 4448eaaafbb857abc286215b121f37ed7656aefb /arch/mips/net/ebpf_jit.c | |
| parent | mips: bpf: fix encoding bug for mm_srlv32_op (diff) | |
| download | linux-dev-ee94b90c8acaa593b627f5f3fe93e076e7779f5c.tar.xz linux-dev-ee94b90c8acaa593b627f5f3fe93e076e7779f5c.zip | |
mips: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_X
Jitting of BPF_K is supported already, but not BPF_X. This patch complete
the support for the latter on both MIPS and microMIPS.
Cc: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/mips/net/ebpf_jit.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c index aeb7b1b0f202..b16710a8a9e7 100644 --- a/arch/mips/net/ebpf_jit.c +++ b/arch/mips/net/ebpf_jit.c @@ -854,6 +854,7 @@ static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, case BPF_ALU | BPF_MOD | BPF_X: /* ALU_REG */ case BPF_ALU | BPF_LSH | BPF_X: /* ALU_REG */ case BPF_ALU | BPF_RSH | BPF_X: /* ALU_REG */ + case BPF_ALU | BPF_ARSH | BPF_X: /* ALU_REG */ src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp); dst = ebpf_to_mips_reg(ctx, insn, dst_reg); if (src < 0 || dst < 0) @@ -913,6 +914,9 @@ static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, case BPF_RSH: emit_instr(ctx, srlv, dst, dst, src); break; + case BPF_ARSH: + emit_instr(ctx, srav, dst, dst, src); + break; default: pr_err("ALU_REG NOT HANDLED\n"); return -EINVAL; |