[RESEND PATCH v4 0/8] bpf powerpc: Add BPF_PROBE_MEM support in powerpc JIT compiler
flat view
STALE1798d
PENDING · 2 of 8 reviewed
From: Hari Bathini <hbathini@linux.ibm.com>
Date: 2021-10-12 12:37:42
Also in:
bpf, netdev
Subsystem:
bpf jit for powerpc (32-bit and 64-bit), bpf [general] (safe dynamic programs and tools), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Hari Bathini, Christophe Leroy, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Madhavan Srinivasan, Linus Torvalds
Status: Pending, 2 of 8 reviewed.
Revision v4 (3 revisions archived).
Revisions (3)
- v2
- v3 [diff against previous]
- v4 current [diff against previous] re-posted current
Patch #1 & #2 are simple cleanup patches. Patch #3 refactors JIT compiler code with the aim to simplify adding BPF_PROBE_MEM support. Patch #4 introduces PPC_RAW_BRANCH() macro instead of open coding branch instruction. Patch #5 & #7 add BPF_PROBE_MEM support for PPC64 & PPC32 JIT compilers respectively. Patch #6 & #8 handle bad userspace pointers for PPC64 & PPC32 cases respectively. Resending v4 after rebasing the series on top of bpf fix patches posted by Naveen: - https://patchwork.ozlabs.org/project/linuxppc-dev/cover/cover.1633464148.git.naveen.n.rao@linux.vnet.ibm.com/ ("[v2,00/10] powerpc/bpf: Various fixes") Also, added Reviewed-by tag from Christophe for patches #3, #5, #6, #7 & #8. Hari Bathini (4): bpf powerpc: refactor JIT compiler code powerpc/ppc-opcode: introduce PPC_RAW_BRANCH() macro bpf ppc32: Add BPF_PROBE_MEM support for JIT bpf ppc32: Access only if addr is kernel address Ravi Bangoria (4): bpf powerpc: Remove unused SEEN_STACK bpf powerpc: Remove extra_pass from bpf_jit_build_body() bpf ppc64: Add BPF_PROBE_MEM support for JIT bpf ppc64: Access only if addr is kernel address arch/powerpc/include/asm/ppc-opcode.h | 2 + arch/powerpc/net/bpf_jit.h | 17 ++++- arch/powerpc/net/bpf_jit_comp.c | 68 +++++++++++++++-- arch/powerpc/net/bpf_jit_comp32.c | 101 ++++++++++++++++++++++---- arch/powerpc/net/bpf_jit_comp64.c | 72 ++++++++++++++---- 5 files changed, 219 insertions(+), 41 deletions(-) -- 2.31.1