linux-kernel - [PATCH v3 0/3] arm64: entry: Convert to generic entry

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Message-ID: <20240629085601.470241-1-ruanjinjie@huawei.com>
Date: Sat, 29 Jun 2024 16:55:58 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <catalin.marinas@....com>, <will@...nel.org>, <oleg@...hat.com>,
	<tglx@...utronix.de>, <peterz@...radead.org>, <luto@...nel.org>,
	<kees@...nel.org>, <wad@...omium.org>, <ruanjinjie@...wei.com>,
	<rostedt@...dmis.org>, <arnd@...db.de>, <ardb@...nel.org>,
	<broonie@...nel.org>, <mark.rutland@....com>, <rick.p.edgecombe@...el.com>,
	<leobras@...hat.com>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v3 0/3] arm64: entry: Convert to generic entry

Currently, x86, Riscv, Loongarch use the generic entry. Convert arm64
to use the generic entry infrastructure from kernel/entry/*. The generic
entry makes maintainers' work easier and codes more elegant, which aslo
removed a lot of duplicate code.

Changes in v3:
- Test the MTE test cases.
- Handle forget_syscall() in arch_post_report_syscall_entry()
- Make the arch funcs not use __weak as Thomas suggested, so move
  the arch funcs to entry-common.h, and make arch_forget_syscall() folded
  in arch_post_report_syscall_entry() as suggested.
- Move report_single_step() to thread_info.h for arm64
- Change __always_inline() to inline, add inline for the other arch funcs.
- Remove unused signal.h for entry-common.h.
- Add Suggested-by.
- Update the commit message.

Changes in v2:
- Add tested-by.
- Fix a bug that not call arch_post_report_syscall_entry() in
  syscall_trace_enter() if ptrace_report_syscall_entry() return not zero.
- Refactor report_syscall().
- Add comment for arch_prepare_report_syscall_exit().
- Adjust entry-common.h header file inclusion to alphabetical order.
- Update the commit message.

Jinjie Ruan (3):
  entry: Add some arch funcs to support arm64 to use generic entry
  arm64: Prepare to switch to generic entry
  arm64: entry: Convert to generic entry

 arch/arm64/Kconfig                    |   1 +
 arch/arm64/include/asm/entry-common.h | 172 ++++++++++++
 arch/arm64/include/asm/ptrace.h       |   5 +
 arch/arm64/include/asm/stacktrace.h   |   5 +-
 arch/arm64/include/asm/syscall.h      |   6 +-
 arch/arm64/include/asm/thread_info.h  |  23 +-
 arch/arm64/kernel/entry-common.c      | 368 +++++---------------------
 arch/arm64/kernel/ptrace.c            |  90 -------
 arch/arm64/kernel/signal.c            |   3 +-
 arch/arm64/kernel/syscall.c           |  18 +-
 include/linux/entry-common.h          |  90 +++++++
 include/linux/thread_info.h           |  13 +
 kernel/entry/common.c                 |  37 +--
 13 files changed, 395 insertions(+), 436 deletions(-)
 create mode 100644 arch/arm64/include/asm/entry-common.h

-- 
2.34.1