[S390] secure computing arch backend

Enable secure computing on s390 as well.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 2eca5fe0e75b..1094787e97e5 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -567,6 +567,24 @@ bool "s390 guest support for KVM (EXPERIMENTAL)"
           the KVM hypervisor. This will add detection for KVM as well  as a
           virtio transport. If KVM is detected, the virtio console will be
           the default console.
+
+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.
+
 endmenu
 
 source "net/Kconfig"