On 2024/6/27 6:52, Kees Cook wrote:
> On Tue, Jun 25, 2024 at 05:27:56PM +0800, Jinjie Ruan wrote:
>> 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.
>>
>> 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 | 60 +++++
>> 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 | 355 ++++++--------------------
>> arch/arm64/kernel/ptrace.c | 78 +++---
>> arch/arm64/kernel/signal.c | 3 +-
>> arch/arm64/kernel/syscall.c | 18 +-
>> include/linux/entry-common.h | 51 ++++
>> kernel/entry/common.c | 49 +++-
>> 12 files changed, 294 insertions(+), 360 deletions(-)
>> create mode 100644 arch/arm64/include/asm/entry-common.h
>
> This is very cool! While the arm64 maintainers need to review it, I at
> least built and ran tests using the seccomp selftests which tends to be
> pretty sensitive to corner cases around syscall exit/entry things, and
> it passed just fine.
Kees, thank you for helping to test the code.
>
> Tested-by: Kees Cook <kees@kernel.org>
>