[PATCH v2 0/4] powerpc64/bpf: Add support for instruction array and indirect jump

[adubey at linux.ibm.com]

From: Abhishek Dubey <adubey at linux.ibm.com>

The first 2 patch enable support for instruction array. Now, the 
instruction offset map maintain the mapping:
original inst -> xlated inst -> jited inst

The last two patch enable support for indirect jump. Any eligile
register can store jump target address for control flow to jump.

The features will be enabled on ppc32 in a separate series.

The patch series is rebased over:
https://lore.kernel.org/bpf/20260226031324.17352-1-adubey@linux.ibm.com

All selftest related to instruction array and indirect jump
are passing.

./test_progs-cpuv4 -n 20
#21/1Â Â Â  bpf_insn_array/one2one:OK
#21/2Â Â Â  bpf_insn_array/simple:OK
#21/3Â Â Â  bpf_insn_array/deletions:OK
#21/4Â Â Â  bpf_insn_array/deletions-with-functions:OK
#21/5Â Â Â  bpf_insn_array/blindness:OK
#21/6Â Â Â  bpf_insn_array/incorrect-index:OK
#21/7Â Â Â  bpf_insn_array/load-unfrozen-map:OK
#21/8Â Â Â  bpf_insn_array/no-map-reuse:OK
#21/9Â Â Â  bpf_insn_array/bpf-side-ops:OK
#21Â Â Â Â Â  bpf_insn_array:OK
Summary: 1/9 PASSED, 0 SKIPPED, 0 FAILED

./test_progs-cpuv4 -n 21  
#20/1Â Â Â  bpf_gotox/one-switch:OK
#20/2Â Â Â  bpf_gotox/one-switch-non-zero-sec-offset:OK
#20/3Â Â Â  bpf_gotox/two-switches:OK
#20/4Â Â Â  bpf_gotox/big-jump-table:OK
#20/5Â Â Â  bpf_gotox/static-global:OK
#20/6Â Â Â  bpf_gotox/nonstatic-global:OK
#20/7Â Â Â  bpf_gotox/other-sec:OK
#20/8Â Â Â  bpf_gotox/static-global-other-sec:OK
#20/9Â Â Â  bpf_gotox/nonstatic-global-other-sec:OK
#20/10Â Â  bpf_gotox/one-jump-two-maps:OK
#20/11Â Â  bpf_gotox/one-map-two-jumps:OK
#20Â Â Â Â Â  bpf_gotox:OK
Summary: 1/11 PASSED, 0 SKIPPED, 0 FAILED

v1->v2:
  Handle image offset for ABIv1

[v1]: https://lore.kernel.org/bpf/20260225010950.20218-1-adubey@linux.ibm.com

Abhishek Dubey (4):
  powerpc64/bpf: Add support for instruction array
  selftest/bpf: Enable instruction array test for powerpc64
  powerpc64/bpf: Add support for indirect jump
  selftest/bpf: Enable gotox tests for powerpc64

 arch/powerpc/net/bpf_jit_comp.c                        | 10 ++++++++++
 arch/powerpc/net/bpf_jit_comp64.c                      |  8 ++++++++
 .../testing/selftests/bpf/prog_tests/bpf_insn_array.c  |  2 +-
 tools/testing/selftests/bpf/progs/verifier_gotox.c     |  4 ++--
 4 files changed, 21 insertions(+), 3 deletions(-)

-- 
2.52.0