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bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE}

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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 <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2017-08-10 01:39:57 +02:00
committed by David S. Miller
parent 52afc51e94
commit c362b2f34e
2 changed files with 24 additions and 0 deletions
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4
arch/arm64/net/bpf_jit.h
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@@ -44,8 +44,12 @@
#define A64_COND_NE AARCH64_INSN_COND_NE /* != */
#define A64_COND_CS AARCH64_INSN_COND_CS /* unsigned >= */
#define A64_COND_HI AARCH64_INSN_COND_HI /* unsigned > */
#define A64_COND_LS AARCH64_INSN_COND_LS /* unsigned <= */
#define A64_COND_CC AARCH64_INSN_COND_CC /* unsigned < */
#define A64_COND_GE AARCH64_INSN_COND_GE /* signed >= */
#define A64_COND_GT AARCH64_INSN_COND_GT /* signed > */
#define A64_COND_LE AARCH64_INSN_COND_LE /* signed <= */
#define A64_COND_LT AARCH64_INSN_COND_LT /* signed < */
#define A64_B_(cond, imm19) A64_COND_BRANCH(cond, (imm19) << 2)
/* Unconditional branch (immediate) */