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| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-01-22 22:45:24 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2019-01-23 17:35:32 -0800 |
| commit | 08ca90afba255d05dc3253caa44056e7aecbe8c5 (patch) | |
| tree | cc07e5da7cef8df19e81ea02527656c0560acd4a /include/linux/bpf_verifier.h | |
| parent | bpf: verifier: record original instruction index (diff) | |
| download | linux-dev-08ca90afba255d05dc3253caa44056e7aecbe8c5.tar.xz linux-dev-08ca90afba255d05dc3253caa44056e7aecbe8c5.zip | |
bpf: notify offload JITs about optimizations
Let offload JITs know when instructions are replaced and optimized
out, so they can update their state appropriately. The optimizations
are best effort, if JIT returns an error from any callback verifier
will stop notifying it as state may now be out of sync, but the
verifier continues making progress.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/bpf_verifier.h')
| -rw-r--r-- | include/linux/bpf_verifier.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index f3ae00ee5516..0620e418dde5 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -266,5 +266,10 @@ int bpf_prog_offload_verifier_prep(struct bpf_prog *prog); int bpf_prog_offload_verify_insn(struct bpf_verifier_env *env, int insn_idx, int prev_insn_idx); int bpf_prog_offload_finalize(struct bpf_verifier_env *env); +void +bpf_prog_offload_replace_insn(struct bpf_verifier_env *env, u32 off, + struct bpf_insn *insn); +void +bpf_prog_offload_remove_insns(struct bpf_verifier_env *env, u32 off, u32 cnt); #endif /* _LINUX_BPF_VERIFIER_H */ |