On Sun, 14 Dec 2025 22:10:20 +0800, Ziyang Zhang wrote:
We choose a smaller magic syscall number to avoid the illegal instruction
exception [1] on qemu-arm.
PATCH v3:
1. Change to a smaller magic syscall number and add comments
2. Set register flags out of the for-loop
PATCH v2:
1. Rebased on newest version of master
PATCH v1:
1. Format the code
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/[email protected]/T/#m0e6809c5a894d64a8b7e67324a4b7cb414c644bf
Ziyang Zhang (2):
linux-user: add 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 | 33 ++++++++++++-----
include/qemu/qemu-plugin.h | 32 ++++++++++++++++
include/user/syscall-trace.h | 17 +++++++++
linux-user/syscall.c | 7 +++-
plugins/api.c | 7 ++++
plugins/core.c | 37 +++++++++++++++++++
tests/tcg/multiarch/Makefile.target | 4 +-
.../multiarch/test-plugin-syscall-filter.c | 35 ++++++++++++++++++
tests/tcg/plugins/syscall.c | 19 ++++++++++
10 files changed, 180 insertions(+), 12 deletions(-)
create mode 100644 tests/tcg/multiarch/test-plugin-syscall-filter.c
This patch is deprecated. Please ignore it and refer to the latest
version [1].
[1]
https://lore.kernel.org/qemu-devel/[email protected]/T/#t
