This patch series implements jump padding to x64 jit to cover some
corner cases that used to consume more than 20 passes and caused
failure.
v2:
- Simplify the sample code in the commit description and provide the
jit code
- Check the expected padding bytes with WARN_ONCE
- Move the 'padded' flag to 'struct x64_jit_data'
- Remove the EXPECTED_FAIL flag from bpf_fill_maxinsns11() in test_bpf
- Add 2 verifier tests
Gary Lin (3):
bpf,x64: pad NOPs to make images converge more easily
test_bpf: remove EXPECTED_FAIL flag from bpf_fill_maxinsns11
selftests/bpf: Add verifier test for x64 jit jump padding
arch/x86/net/bpf_jit_comp.c | 86 +++++++++++++++------
lib/test_bpf.c | 7 +-
tools/testing/selftests/bpf/test_verifier.c | 43 +++++++++++
tools/testing/selftests/bpf/verifier/jit.c | 16 ++++
4 files changed, 122 insertions(+), 30 deletions(-)
--
2.29.2
