tree ebe2c706325515484c567ade7f16e2bee61335c2
parent ac4414b5ca47d16c8de3134cc1b868056c4a68ea
author Alexei Starovoitov <ast@kernel.org> 1571196302 -0700
committer Daniel Borkmann <daniel@iogearbox.net> 1571323476 +0200

bpf: Add support for BTF pointers to interpreter

Pointer to BTF object is a pointer to kernel object or NULL.
The memory access in the interpreter has to be done via probe_kernel_read
to avoid page faults.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191016032505.2089704-9-ast@kernel.org