[v1] linux-user: add a syscall-filter plugin API

[PATCH 0/2] linux-user: add a syscall-filter plugin API

Ziyang Zhang posted 2 patches 1 month ago

Diff against v2 v2
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include/qemu/plugin-event.h                   |  1 +
include/qemu/plugin.h                         | 29 ++++++++++-----
include/qemu/qemu-plugin.h                    | 24 +++++++++++++
include/user/syscall-trace.h                  | 17 +++++++++
linux-user/syscall.c                          |  7 ++--
plugins/api.c                                 |  7 ++++
plugins/core.c                                | 36 +++++++++++++++++++
tests/tcg/multiarch/Makefile.target           |  4 ++-
.../multiarch/test-plugin-syscall-filter.c    | 20 +++++++++++
tests/tcg/plugins/syscall.c                   | 15 ++++++++
10 files changed, 149 insertions(+), 11 deletions(-)
create mode 100644 tests/tcg/multiarch/test-plugin-syscall-filter.c

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[PATCH 0/2] linux-user: add a syscall-filter plugin API

Posted by Ziyang Zhang 1 month ago

We have improved the code format of RFC V2 [1] as suggested.

This patch modifies the indentation only.

RFC v2:
  1. Simplify the syscall filter mechanism and remove fork-cpu
  2. Add QEMU_PLUGIN_EV_VCPU_SYSCALL_FILTER enum

RFC v1:
  1. Add syscall filter registry
  2. Add fork-cpu interface to re-enter cpu_loop when handling syscalls

[1] https://lore.kernel.org/qemu-devel/1341969682.5812455.1761115945695.JavaMail.zimbra@sjtu.edu.cn/

Ziyang Zhang, Mingyuan Xia (2):
  linux-user: add a plugin API to filter syscalls
  tcg tests: add a test to verify the syscall filter plugin API

 include/qemu/plugin-event.h                   |  1 +
 include/qemu/plugin.h                         | 29 ++++++++++-----
 include/qemu/qemu-plugin.h                    | 24 +++++++++++++
 include/user/syscall-trace.h                  | 17 +++++++++
 linux-user/syscall.c                          |  7 ++--
 plugins/api.c                                 |  7 ++++
 plugins/core.c                                | 36 +++++++++++++++++++
 tests/tcg/multiarch/Makefile.target           |  4 ++-
 .../multiarch/test-plugin-syscall-filter.c    | 20 +++++++++++
 tests/tcg/plugins/syscall.c                   | 15 ++++++++
 10 files changed, 149 insertions(+), 11 deletions(-)
 create mode 100644 tests/tcg/multiarch/test-plugin-syscall-filter.c

-- 
2.34.1

Re: [PATCH 0/2] linux-user: add a syscall-filter plugin API

Posted by Alex Bennée 1 day, 13 hours ago

Ziyang Zhang <functioner@sjtu.edu.cn> writes:

> We have improved the code format of RFC V2 [1] as suggested.
>
> This patch modifies the indentation only.
>
> RFC v2:
>   1. Simplify the syscall filter mechanism and remove fork-cpu
>   2. Add QEMU_PLUGIN_EV_VCPU_SYSCALL_FILTER enum
>
> RFC v1:
>   1. Add syscall filter registry
>   2. Add fork-cpu interface to re-enter cpu_loop when handling syscalls
>
> [1] https://lore.kernel.org/qemu-devel/1341969682.5812455.1761115945695.JavaMail.zimbra@sjtu.edu.cn/
>
> Ziyang Zhang, Mingyuan Xia (2):
>   linux-user: add a plugin API to filter syscalls
>   tcg tests: add a test to verify the syscall filter plugin API
>
>  include/qemu/plugin-event.h                   |  1 +
>  include/qemu/plugin.h                         | 29 ++++++++++-----

These clash with the now merged discontinuity api so will need to be
fixed up on the next re-base.

>  include/qemu/qemu-plugin.h                    | 24 +++++++++++++
>  include/user/syscall-trace.h                  | 17 +++++++++
>  linux-user/syscall.c                          |  7 ++--
>  plugins/api.c                                 |  7 ++++
>  plugins/core.c                                | 36 +++++++++++++++++++
>  tests/tcg/multiarch/Makefile.target           |  4 ++-
>  .../multiarch/test-plugin-syscall-filter.c    | 20 +++++++++++
>  tests/tcg/plugins/syscall.c                   | 15 ++++++++
>  10 files changed, 149 insertions(+), 11 deletions(-)
>  create mode 100644 tests/tcg/multiarch/test-plugin-syscall-filter.c

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro