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(parent: 9873ce2) | patch
s390/bpf: Implement BPF_MOV | BPF_X with sign-extension
authorIlya Leoshkevich <iii@linux.ibm.com>
Tue, 19 Sep 2023 10:09:06 +0000 (12:09 +0200)
committerAlexei Starovoitov <ast@kernel.org>
Thu, 21 Sep 2023 21:21:59 +0000 (14:21 -0700)
commit3de55893f6482660e2f04454eb0e65a070523ba0
treed3c16cd8279574e62911e3ad1cc24cf420daa4f9tree | snapshot
parent9873ce2e9c68193371c111a1a9f06064e36b9814commit | diff
s390/bpf: Implement BPF_MOV | BPF_X with sign-extension

Implement the cpuv4 register-to-register move with sign extension. It
is distinguished from the normal moves by non-zero values in
insn->off, which determine the source size. s390x has instructions to
deal with all of them: lbr, lhr, lgbr, lghr and lgfr.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20230919101336.2223655-5-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
arch/s390/net/bpf_jit_comp.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git