| Message ID | cover.1604410035.git.yifeifz2@illinois.edu (mailing list archive) |
|---|---|
| Headers | show |
| Series | seccomp: add bitmap cache support on remaining arches and report cache in procfs | expand |
On Tue, Nov 03, 2020 at 07:42:56AM -0600, YiFei Zhu wrote: > From: YiFei Zhu <yifeifz2@illinois.edu> > > This patch series enables bitmap cache for the remaining arches with > SECCOMP_FILTER, other than MIPS. > > I was unable to find any of the arches having subarch-specific NR_syscalls > macros, so generic NR_syscalls is used. SH's syscall_get_arch seems to > only have the 32-bit subarch implementation. I'm not sure if this is > expected. > > This series has not been tested; I have not built all the cross compilers > necessary to build test, let alone run the kernel or benchmark the > performance, so help on making sure the bitmap cache works as expected > would be appreciated. The series applies on top of Kees's for-next/seccomp > branch. Thank you! This looks good. I wonder if the different handling of little endian is worth solving -- I'm suspicious about powerpc's use of __LITTLE_ENDIAN__ vs a CONFIG, but I guess the compiler would match the target endian-ness. Regardless, it captures what the architectures are doing, and gets things standardized. > > YiFei Zhu (8): > csky: Enable seccomp architecture tracking > parisc: Enable seccomp architecture tracking I don't have compilers for these. > powerpc: Enable seccomp architecture tracking > riscv: Enable seccomp architecture tracking > s390: Enable seccomp architecture tracking These I can build-test immediately. > sh: Enable seccomp architecture tracking > xtensa: Enable seccomp architecture tracking These two are available in Ubuntu's cross compiler set, so I'll get them added to my cross-builders. > seccomp/cache: Report cache data through /proc/pid/seccomp_cache In the meantime, I'll wait a bit to see if we can get some Acks/Reviews from arch maintainers. :) -Kees > > arch/Kconfig | 15 ++++++++ > arch/csky/include/asm/Kbuild | 1 - > arch/csky/include/asm/seccomp.h | 11 ++++++ > arch/parisc/include/asm/Kbuild | 1 - > arch/parisc/include/asm/seccomp.h | 22 +++++++++++ > arch/powerpc/include/asm/seccomp.h | 21 +++++++++++ > arch/riscv/include/asm/seccomp.h | 10 +++++ > arch/s390/include/asm/seccomp.h | 9 +++++ > arch/sh/include/asm/seccomp.h | 10 +++++ > arch/xtensa/include/asm/Kbuild | 1 - > arch/xtensa/include/asm/seccomp.h | 11 ++++++ > fs/proc/base.c | 6 +++ > include/linux/seccomp.h | 7 ++++ > kernel/seccomp.c | 59 ++++++++++++++++++++++++++++++ > 14 files changed, 181 insertions(+), 3 deletions(-) > create mode 100644 arch/csky/include/asm/seccomp.h > create mode 100644 arch/parisc/include/asm/seccomp.h > create mode 100644 arch/xtensa/include/asm/seccomp.h > > > base-commit: 38c37e8fd3d2590c4234d8cfbc22158362f0eb04 > -- > 2.29.2
From: YiFei Zhu <yifeifz2@illinois.edu> This patch series enables bitmap cache for the remaining arches with SECCOMP_FILTER, other than MIPS. I was unable to find any of the arches having subarch-specific NR_syscalls macros, so generic NR_syscalls is used. SH's syscall_get_arch seems to only have the 32-bit subarch implementation. I'm not sure if this is expected. This series has not been tested; I have not built all the cross compilers necessary to build test, let alone run the kernel or benchmark the performance, so help on making sure the bitmap cache works as expected would be appreciated. The series applies on top of Kees's for-next/seccomp branch. YiFei Zhu (8): csky: Enable seccomp architecture tracking parisc: Enable seccomp architecture tracking powerpc: Enable seccomp architecture tracking riscv: Enable seccomp architecture tracking s390: Enable seccomp architecture tracking sh: Enable seccomp architecture tracking xtensa: Enable seccomp architecture tracking seccomp/cache: Report cache data through /proc/pid/seccomp_cache arch/Kconfig | 15 ++++++++ arch/csky/include/asm/Kbuild | 1 - arch/csky/include/asm/seccomp.h | 11 ++++++ arch/parisc/include/asm/Kbuild | 1 - arch/parisc/include/asm/seccomp.h | 22 +++++++++++ arch/powerpc/include/asm/seccomp.h | 21 +++++++++++ arch/riscv/include/asm/seccomp.h | 10 +++++ arch/s390/include/asm/seccomp.h | 9 +++++ arch/sh/include/asm/seccomp.h | 10 +++++ arch/xtensa/include/asm/Kbuild | 1 - arch/xtensa/include/asm/seccomp.h | 11 ++++++ fs/proc/base.c | 6 +++ include/linux/seccomp.h | 7 ++++ kernel/seccomp.c | 59 ++++++++++++++++++++++++++++++ 14 files changed, 181 insertions(+), 3 deletions(-) create mode 100644 arch/csky/include/asm/seccomp.h create mode 100644 arch/parisc/include/asm/seccomp.h create mode 100644 arch/xtensa/include/asm/seccomp.h base-commit: 38c37e8fd3d2590c4234d8cfbc22158362f0eb04 -- 2.29.2