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authorYiFei Zhu <yifeifz2@illinois.edu>2020-09-24 15:44:16 +0300
committerKees Cook <keescook@chromium.org>2020-10-08 23:17:47 +0300
commit282a181b1a0d66de1f0894d82f395fcd478f51d1 (patch)
tree0f054421aab972593cbc3d117048d478abd30d5a /arch/microblaze
parente953aeaa913bedcdabc168276ef41c83ae75f161 (diff)
downloadlinux-282a181b1a0d66de1f0894d82f395fcd478f51d1.tar.xz
seccomp: Move config option SECCOMP to arch/Kconfig
In order to make adding configurable features into seccomp easier, it's better to have the options at one single location, considering especially that the bulk of seccomp code is arch-independent. An quick look also show that many SECCOMP descriptions are outdated; they talk about /proc rather than prctl. As a result of moving the config option and keeping it default on, architectures arm, arm64, csky, riscv, sh, and xtensa did not have SECCOMP on by default prior to this and SECCOMP will be default in this change. Architectures microblaze, mips, powerpc, s390, sh, and sparc have an outdated depend on PROC_FS and this dependency is removed in this change. Suggested-by: Jann Horn <jannh@google.com> Link: https://lore.kernel.org/lkml/CAG48ez1YWz9cnp08UZgeieYRhHdqh-ch7aNwc4JRBnGyrmgfMg@mail.gmail.com/ Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu> [kees: added HAVE_ARCH_SECCOMP help text, tweaked wording] Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/9ede6ef35c847e58d61e476c6a39540520066613.1600951211.git.yifeifz2@illinois.edu
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/Kconfig18
1 files changed, 1 insertions, 17 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d262ac0c8714..37bd6a5f38fb 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -26,6 +26,7 @@ config MICROBLAZE
select GENERIC_SCHED_CLOCK
select HAVE_ARCH_HASH
select HAVE_ARCH_KGDB
+ select HAVE_ARCH_SECCOMP
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
@@ -120,23 +121,6 @@ config CMDLINE_FORCE
Set this to have arguments from the default kernel command string
override those passed by the boot loader.
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
endmenu
menu "Kernel features"