diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 628b3970a49b..a5b223ef7131 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -933,32 +933,34 @@ EXPORT_SYMBOL_GPL(__bpf_call_base); #define BPF_INSN_MAP(INSN_2, INSN_3) \ /* 32 bit ALU operations. */ \ /* Register based. */ \ - INSN_3(ALU, ADD, X), \ - INSN_3(ALU, SUB, X), \ - INSN_3(ALU, AND, X), \ - INSN_3(ALU, OR, X), \ - INSN_3(ALU, LSH, X), \ - INSN_3(ALU, RSH, X), \ - INSN_3(ALU, XOR, X), \ - INSN_3(ALU, MUL, X), \ - INSN_3(ALU, MOV, X), \ - INSN_3(ALU, DIV, X), \ - INSN_3(ALU, MOD, X), \ + INSN_3(ALU, ADD, X), \ + INSN_3(ALU, SUB, X), \ + INSN_3(ALU, AND, X), \ + INSN_3(ALU, OR, X), \ + INSN_3(ALU, LSH, X), \ + INSN_3(ALU, RSH, X), \ + INSN_3(ALU, XOR, X), \ + INSN_3(ALU, MUL, X), \ + INSN_3(ALU, MOV, X), \ + INSN_3(ALU, ARSH, X), \ + INSN_3(ALU, DIV, X), \ + INSN_3(ALU, MOD, X), \ INSN_2(ALU, NEG), \ INSN_3(ALU, END, TO_BE), \ INSN_3(ALU, END, TO_LE), \ /* Immediate based. */ \ - INSN_3(ALU, ADD, K), \ - INSN_3(ALU, SUB, K), \ - INSN_3(ALU, AND, K), \ - INSN_3(ALU, OR, K), \ - INSN_3(ALU, LSH, K), \ - INSN_3(ALU, RSH, K), \ - INSN_3(ALU, XOR, K), \ - INSN_3(ALU, MUL, K), \ - INSN_3(ALU, MOV, K), \ - INSN_3(ALU, DIV, K), \ - INSN_3(ALU, MOD, K), \ + INSN_3(ALU, ADD, K), \ + INSN_3(ALU, SUB, K), \ + INSN_3(ALU, AND, K), \ + INSN_3(ALU, OR, K), \ + INSN_3(ALU, LSH, K), \ + INSN_3(ALU, RSH, K), \ + INSN_3(ALU, XOR, K), \ + INSN_3(ALU, MUL, K), \ + INSN_3(ALU, MOV, K), \ + INSN_3(ALU, ARSH, K), \ + INSN_3(ALU, DIV, K), \ + INSN_3(ALU, MOD, K), \ /* 64 bit ALU operations. */ \ /* Register based. */ \ INSN_3(ALU64, ADD, X), \ @@ -1137,6 +1139,12 @@ static u64 ___bpf_prog_run(u64 *regs, const struct bpf_insn *insn, u64 *stack) DST = (u64) (u32) insn[0].imm | ((u64) (u32) insn[1].imm) << 32; insn++; CONT; + ALU_ARSH_X: + DST = (u64) (u32) ((*(s32 *) &DST) >> SRC); + CONT; + ALU_ARSH_K: + DST = (u64) (u32) ((*(s32 *) &DST) >> IMM); + CONT; ALU64_ARSH_X: (*(s64 *) &DST) >>= SRC; CONT;