diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/ppc-opcode.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/net/bpf_jit.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp.c | 11 |
3 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 5f73ce63fca..42b1f43b943 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -168,9 +168,12 @@ #define PPC_INST_AND 0x7c000038 #define PPC_INST_ANDDOT 0x7c000039 #define PPC_INST_OR 0x7c000378 +#define PPC_INST_XOR 0x7c000278 #define PPC_INST_ANDI 0x70000000 #define PPC_INST_ORI 0x60000000 #define PPC_INST_ORIS 0x64000000 +#define PPC_INST_XORI 0x68000000 +#define PPC_INST_XORIS 0x6c000000 #define PPC_INST_NEG 0x7c0000d0 #define PPC_INST_BRANCH 0x48000000 #define PPC_INST_BRANCH_COND 0x40800000 diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 1fc8109bf2f..8a5dfaf5c6b 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -134,6 +134,12 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RS(a) | IMM_L(i)) #define PPC_ORIS(d, a, i) EMIT(PPC_INST_ORIS | ___PPC_RA(d) | \ ___PPC_RS(a) | IMM_L(i)) +#define PPC_XOR(d, a, b) EMIT(PPC_INST_XOR | ___PPC_RA(d) | \ + ___PPC_RS(a) | ___PPC_RB(b)) +#define PPC_XORI(d, a, i) EMIT(PPC_INST_XORI | ___PPC_RA(d) | \ + ___PPC_RS(a) | IMM_L(i)) +#define PPC_XORIS(d, a, i) EMIT(PPC_INST_XORIS | ___PPC_RA(d) | \ + ___PPC_RS(a) | IMM_L(i)) #define PPC_SLW(d, a, s) EMIT(PPC_INST_SLW | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(s)) #define PPC_SRW(d, a, s) EMIT(PPC_INST_SRW | ___PPC_RA(d) | \ diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index dd1130642d0..b9434de8222 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -232,6 +232,17 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, if (K >= 65536) PPC_ORIS(r_A, r_A, IMM_H(K)); break; + case BPF_S_ANC_ALU_XOR_X: + case BPF_S_ALU_XOR_X: /* A ^= X */ + ctx->seen |= SEEN_XREG; + PPC_XOR(r_A, r_A, r_X); + break; + case BPF_S_ALU_XOR_K: /* A ^= K */ + if (IMM_L(K)) + PPC_XORI(r_A, r_A, IMM_L(K)); + if (K >= 65536) + PPC_XORIS(r_A, r_A, IMM_H(K)); + break; case BPF_S_ALU_LSH_X: /* A <<= X; */ ctx->seen |= SEEN_XREG; PPC_SLW(r_A, r_A, r_X); |