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From: Xu Kuohai <xukuohai@huawei.com>
To: <bpf@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
	<linux-kselftest@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	 Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexei Starovoitov <ast@kernel.org>,
	Zi Shen Lim <zlim.lnx@gmail.com>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	David Ahern <dsahern@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>, <x86@kernel.org>,
	<hpa@zytor.com>, Shuah Khan <shuah@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	Pasha Tatashin <pasha.tatashin@soleen.com>,
	Peter Collingbourne <pcc@google.com>,
	Daniel Kiss <daniel.kiss@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Steven Price <steven.price@arm.com>,
	Marc Zyngier <maz@kernel.org>, Mark Brown <broonie@kernel.org>,
	Kumar Kartikeya Dwivedi <memxor@gmail.com>,
	Delyan Kratunov <delyank@fb.com>
Subject: [PATCH bpf-next v2 0/6] bpf trampoline for arm64
Date: Thu, 14 Apr 2022 12:22:14 -0400	[thread overview]
Message-ID: <20220414162220.1985095-1-xukuohai@huawei.com> (raw)

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

v2:
- Add Song's ACK
- Change the multi-line comment in is_valid_bpf_tramp_flags() into net
  style (patch 3)
- Fix a deadloop issue in ftrace selftest (patch 2)
- Replace pt_regs->x0 with pt_regs->orig_x0 in patch 1 commit message 
- Replace "bpf trampoline" with "custom trampoline" in patch 1, as
  ftrace direct call is not only used by bpf trampoline.

v1: https://lore.kernel.org/bpf/20220413054959.1053668-1-xukuohai@huawei.com/

Xu Kuohai (6):
  arm64: ftrace: Add ftrace direct call support
  ftrace: Fix deadloop caused by direct call in ftrace selftest
  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              |  28 +-
 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                       |  35 +-
 kernel/trace/trace_selftest.c                 |   4 +-
 .../selftests/bpf/prog_tests/fentry_fexit.c   |   4 +-
 12 files changed, 482 insertions(+), 35 deletions(-)

-- 
2.30.2


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WARNING: multiple messages have this Message-ID (diff)
From: Xu Kuohai <xukuohai@huawei.com>
To: <bpf@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
	<linux-kselftest@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Alexei Starovoitov <ast@kernel.org>,
	Zi Shen Lim <zlim.lnx@gmail.com>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	David Ahern <dsahern@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>, <x86@kernel.org>,
	<hpa@zytor.com>, Shuah Khan <shuah@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	Pasha Tatashin <pasha.tatashin@soleen.com>,
	Peter Collingbourne <pcc@google.com>,
	Daniel Kiss <daniel.kiss@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Steven Price <steven.price@arm.com>,
	Marc Zyngier <maz@kernel.org>, Mark Brown <broonie@kernel.org>,
	Kumar Kartikeya Dwivedi <memxor@gmail.com>,
	Delyan Kratunov <delyank@fb.com>
Subject: [PATCH bpf-next v2 0/6] bpf trampoline for arm64
Date: Thu, 14 Apr 2022 12:22:14 -0400	[thread overview]
Message-ID: <20220414162220.1985095-1-xukuohai@huawei.com> (raw)

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

v2:
- Add Song's ACK
- Change the multi-line comment in is_valid_bpf_tramp_flags() into net
  style (patch 3)
- Fix a deadloop issue in ftrace selftest (patch 2)
- Replace pt_regs->x0 with pt_regs->orig_x0 in patch 1 commit message 
- Replace "bpf trampoline" with "custom trampoline" in patch 1, as
  ftrace direct call is not only used by bpf trampoline.

v1: https://lore.kernel.org/bpf/20220413054959.1053668-1-xukuohai@huawei.com/

Xu Kuohai (6):
  arm64: ftrace: Add ftrace direct call support
  ftrace: Fix deadloop caused by direct call in ftrace selftest
  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              |  28 +-
 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                       |  35 +-
 kernel/trace/trace_selftest.c                 |   4 +-
 .../selftests/bpf/prog_tests/fentry_fexit.c   |   4 +-
 12 files changed, 482 insertions(+), 35 deletions(-)

-- 
2.30.2


             reply	other threads:[~2022-04-14 16:11 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-14 16:22 Xu Kuohai [this message]
2022-04-14 16:22 ` [PATCH bpf-next v2 0/6] bpf trampoline for arm64 Xu Kuohai
2022-04-14 16:22 ` [PATCH bpf-next v2 1/6] arm64: ftrace: Add ftrace direct call support Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-14 16:22 ` [PATCH bpf-next v2 2/6] ftrace: Fix deadloop caused by direct call in ftrace selftest Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-20 23:24   ` Steven Rostedt
2022-04-20 23:24     ` Steven Rostedt
2022-04-21  3:01     ` Xu Kuohai
2022-04-21  3:01       ` Xu Kuohai
2022-04-14 16:22 ` [PATCH bpf-next v2 3/6] bpf: Move is_valid_bpf_tramp_flags() to the public trampoline code Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-14 16:22 ` [PATCH bpf-next v2 4/6] bpf, arm64: Impelment bpf_arch_text_poke() for arm64 Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-15  2:34   ` Hou Tao
2022-04-15  2:34     ` Hou Tao
2022-04-15  3:39     ` Xu Kuohai
2022-04-15  3:39       ` Xu Kuohai
2022-04-22 10:54   ` Jakub Sitnicki
2022-04-22 10:54     ` Jakub Sitnicki
2022-04-24  5:05     ` Xu Kuohai
2022-04-24  5:05       ` Xu Kuohai
2022-04-25 14:26       ` Jakub Sitnicki
2022-04-25 14:26         ` Jakub Sitnicki
2022-04-26  4:01         ` Xu Kuohai
2022-04-26  4:01           ` Xu Kuohai
2022-04-14 16:22 ` [PATCH bpf-next v2 5/6] bpf, arm64: bpf trampoline " Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-15 17:12   ` Andrii Nakryiko
2022-04-15 17:12     ` Andrii Nakryiko
2022-04-16  1:57     ` Xu Kuohai
2022-04-16  1:57       ` Xu Kuohai
2022-04-20  7:43       ` Xu Kuohai
2022-04-20  7:43         ` Xu Kuohai
2022-04-20 11:42         ` KP Singh
2022-04-20 11:42           ` KP Singh
2022-04-14 16:22 ` [PATCH bpf-next v2 6/6] selftests/bpf: Fix trivial typo in fentry_fexit.c Xu Kuohai
2022-04-14 16:22   ` Xu Kuohai
2022-04-15  2:37 ` [PATCH bpf-next v2 0/6] bpf trampoline for arm64 Hou Tao
2022-04-15  2:37   ` Hou Tao
2022-04-15  3:47   ` Xu Kuohai
2022-04-15  3:47     ` Xu Kuohai

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