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Date: Wed, 13 Apr 2022 01:49:54 -0400 From: Xu Kuohai <xukuohai@...wei.com> To: <bpf@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>, <linux-kselftest@...r.kernel.org> CC: Will Deacon <will@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, Daniel Borkmann <daniel@...earbox.net>, Alexei Starovoitov <ast@...nel.org>, Zi Shen Lim <zlim.lnx@...il.com>, Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, <x86@...nel.org>, <hpa@...or.com>, Shuah Khan <shuah@...nel.org>, Mark Rutland <mark.rutland@....com>, Ard Biesheuvel <ardb@...nel.org>, Pasha Tatashin <pasha.tatashin@...een.com>, Peter Collingbourne <pcc@...gle.com>, Daniel Kiss <daniel.kiss@....com>, Sudeep Holla <sudeep.holla@....com>, Steven Price <steven.price@....com>, Marc Zyngier <maz@...nel.org>, Mark Brown <broonie@...nel.org>, Kumar Kartikeya Dwivedi <memxor@...il.com>, Delyan Kratunov <delyank@...com> Subject: [PATCH bpf-next 0/5] bpf trampoline for arm64 Add bpf trampoline support for arm64. Most of the logic is the same as x86. Tested on qemu, result: #55 fentry_fexit:OK #56 fentry_test:OK #58 fexit_sleep:OK #59 fexit_stress:OK #60 fexit_test:OK #67 get_func_args_test:OK #68 get_func_ip_test:OK #101 modify_return:OK Xu Kuohai (5): arm64: ftrace: Add ftrace direct call support bpf: Move is_valid_bpf_tramp_flags() to the public trampoline code bpf, arm64: Impelment bpf_arch_text_poke() for arm64 bpf, arm64: bpf trampoline for arm64 selftests/bpf: Fix trivial typo in fentry_fexit.c arch/arm64/Kconfig | 2 + arch/arm64/include/asm/ftrace.h | 10 + arch/arm64/kernel/asm-offsets.c | 1 + arch/arm64/kernel/entry-ftrace.S | 18 +- arch/arm64/net/bpf_jit.h | 14 +- arch/arm64/net/bpf_jit_comp.c | 390 +++++++++++++++++- arch/x86/net/bpf_jit_comp.c | 20 - include/linux/bpf.h | 5 + kernel/bpf/bpf_struct_ops.c | 4 +- kernel/bpf/trampoline.c | 36 +- .../selftests/bpf/prog_tests/fentry_fexit.c | 4 +- 11 files changed, 470 insertions(+), 34 deletions(-) -- 2.30.2
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