From c362b2f34e266d062a3fe09e0f400d8f8bdf23c9 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Thu, 10 Aug 2017 01:39:57 +0200 Subject: bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE} This work implements jiting of BPF_J{LT,LE,SLT,SLE} instructions with BPF_X/BPF_K variants for the arm64 eBPF JIT. Signed-off-by: Daniel Borkmann Signed-off-by: David S. Miller --- arch/arm64/net/bpf_jit_comp.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'arch/arm64/net/bpf_jit_comp.c') diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index f32144b2e07f..ba38d403abb2 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -527,10 +527,14 @@ emit_bswap_uxt: /* IF (dst COND src) JUMP off */ case BPF_JMP | BPF_JEQ | BPF_X: case BPF_JMP | BPF_JGT | BPF_X: + case BPF_JMP | BPF_JLT | BPF_X: case BPF_JMP | BPF_JGE | BPF_X: + case BPF_JMP | BPF_JLE | BPF_X: case BPF_JMP | BPF_JNE | BPF_X: case BPF_JMP | BPF_JSGT | BPF_X: + case BPF_JMP | BPF_JSLT | BPF_X: case BPF_JMP | BPF_JSGE | BPF_X: + case BPF_JMP | BPF_JSLE | BPF_X: emit(A64_CMP(1, dst, src), ctx); emit_cond_jmp: jmp_offset = bpf2a64_offset(i + off, i, ctx); @@ -542,9 +546,15 @@ emit_cond_jmp: case BPF_JGT: jmp_cond = A64_COND_HI; break; + case BPF_JLT: + jmp_cond = A64_COND_CC; + break; case BPF_JGE: jmp_cond = A64_COND_CS; break; + case BPF_JLE: + jmp_cond = A64_COND_LS; + break; case BPF_JSET: case BPF_JNE: jmp_cond = A64_COND_NE; @@ -552,9 +562,15 @@ emit_cond_jmp: case BPF_JSGT: jmp_cond = A64_COND_GT; break; + case BPF_JSLT: + jmp_cond = A64_COND_LT; + break; case BPF_JSGE: jmp_cond = A64_COND_GE; break; + case BPF_JSLE: + jmp_cond = A64_COND_LE; + break; default: return -EFAULT; } @@ -566,10 +582,14 @@ emit_cond_jmp: /* IF (dst COND imm) JUMP off */ case BPF_JMP | BPF_JEQ | BPF_K: case BPF_JMP | BPF_JGT | BPF_K: + case BPF_JMP | BPF_JLT | BPF_K: case BPF_JMP | BPF_JGE | BPF_K: + case BPF_JMP | BPF_JLE | BPF_K: case BPF_JMP | BPF_JNE | BPF_K: case BPF_JMP | BPF_JSGT | BPF_K: + case BPF_JMP | BPF_JSLT | BPF_K: case BPF_JMP | BPF_JSGE | BPF_K: + case BPF_JMP | BPF_JSLE | BPF_K: emit_a64_mov_i(1, tmp, imm, ctx); emit(A64_CMP(1, dst, tmp), ctx); goto emit_cond_jmp; -- cgit v1.2.3-59-g8ed1b