diff options
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r-- | arch/s390/Kconfig | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 16c673096a22..c80235206c01 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig | |||
@@ -220,23 +220,8 @@ config AUDIT_ARCH | |||
220 | bool | 220 | bool |
221 | default y | 221 | default y |
222 | 222 | ||
223 | config S390_SWITCH_AMODE | ||
224 | bool "Switch kernel/user addressing modes" | ||
225 | help | ||
226 | This option allows to switch the addressing modes of kernel and user | ||
227 | space. The kernel parameter switch_amode=on will enable this feature, | ||
228 | default is disabled. Enabling this (via kernel parameter) on machines | ||
229 | earlier than IBM System z9-109 EC/BC will reduce system performance. | ||
230 | |||
231 | Note that this option will also be selected by selecting the execute | ||
232 | protection option below. Enabling the execute protection via the | ||
233 | noexec kernel parameter will also switch the addressing modes, | ||
234 | independent of the switch_amode kernel parameter. | ||
235 | |||
236 | |||
237 | config S390_EXEC_PROTECT | 223 | config S390_EXEC_PROTECT |
238 | bool "Data execute protection" | 224 | bool "Data execute protection" |
239 | select S390_SWITCH_AMODE | ||
240 | help | 225 | help |
241 | This option allows to enable a buffer overflow protection for user | 226 | This option allows to enable a buffer overflow protection for user |
242 | space programs and it also selects the addressing mode option above. | 227 | space programs and it also selects the addressing mode option above. |