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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Alexei Starovoitov <ast@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>,
	Daniel Borkmann <daniel@iogearbox.net>,
	x86@kernel.org, Networking <netdev@vger.kernel.org>,
	bpf <bpf@vger.kernel.org>, Kernel Team <kernel-team@fb.com>
Subject: Re: [PATCH v4 bpf-next 03/20] bpf: Add bpf_arch_text_poke() helper
Date: Fri, 15 Nov 2019 14:18:16 -0800	[thread overview]
Message-ID: <CAEf4BzbTrm4cQ7jBp-1izfhzD3cEc2QUzCd3rugd1PzFSb2Qfw@mail.gmail.com> (raw)
In-Reply-To: <20191114185720.1641606-4-ast@kernel.org>

On Thu, Nov 14, 2019 at 10:58 AM Alexei Starovoitov <ast@kernel.org> wrote:
>
> Add bpf_arch_text_poke() helper that is used by BPF trampoline logic to patch
> nops/calls in kernel text into calls into BPF trampoline and to patch
> calls/nops inside BPF programs too.
>
> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
> Acked-by: Song Liu <songliubraving@fb.com>
> ---

Acked-by: Andrii Nakryiko <andriin@fb.com>

>  arch/x86/net/bpf_jit_comp.c | 51 +++++++++++++++++++++++++++++++++++++
>  include/linux/bpf.h         |  8 ++++++
>  kernel/bpf/core.c           |  6 +++++
>  3 files changed, 65 insertions(+)
>

[...]

  reply	other threads:[~2019-11-15 22:18 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-14 18:57 [PATCH v4 bpf-next 00/20] Introduce BPF trampoline Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 01/20] x86/alternatives: Teach text_poke_bp() to emulate instructions Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 02/20] bpf: refactor x86 JIT into helpers Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 03/20] bpf: Add bpf_arch_text_poke() helper Alexei Starovoitov
2019-11-15 22:18   ` Andrii Nakryiko [this message]
2019-11-14 18:57 ` [PATCH v4 bpf-next 04/20] bpf: Introduce BPF trampoline Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 05/20] libbpf: Introduce btf__find_by_name_kind() Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 06/20] libbpf: Add support to attach to fentry/fexit tracing progs Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 07/20] selftest/bpf: Simple test for fentry/fexit Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 08/20] bpf: Add kernel test functions for fentry testing Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 09/20] selftests/bpf: Add test for BPF trampoline Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 10/20] selftests/bpf: Add fexit tests " Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 11/20] selftests/bpf: Add combined fentry/fexit test Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 12/20] selftests/bpf: Add stress test for maximum number of progs Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 13/20] bpf: Reserve space for BPF trampoline in BPF programs Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 14/20] bpf: Fix race in btf_resolve_helper_id() Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 15/20] bpf: Annotate context types Alexei Starovoitov
2019-11-14 22:55   ` Song Liu
2019-11-14 23:01     ` Alexei Starovoitov
2019-11-14 23:19       ` Song Liu
2019-11-14 23:23   ` Song Liu
2019-11-14 18:57 ` [PATCH v4 bpf-next 16/20] bpf: Compare BTF types of functions arguments with actual types Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 17/20] bpf: Support attaching tracing BPF program to other BPF programs Alexei Starovoitov
2019-11-14 23:30   ` Song Liu
2019-11-14 18:57 ` [PATCH v4 bpf-next 18/20] libbpf: Add support for attaching BPF programs " Alexei Starovoitov
2019-11-14 23:39   ` Song Liu
2019-11-14 18:57 ` [PATCH v4 bpf-next 19/20] selftests/bpf: Extend test_pkt_access test Alexei Starovoitov
2019-11-14 18:57 ` [PATCH v4 bpf-next 20/20] selftests/bpf: Add a test for attaching BPF prog to another BPF prog and subprog Alexei Starovoitov
2019-11-16  0:01 ` [PATCH v4 bpf-next 00/20] Introduce BPF trampoline Daniel Borkmann

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