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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-09 22:01:47 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-09 22:01:47 -0500 |
commit | 67dd2f5a669f48e48ea1013fb80522adca8287f4 (patch) | |
tree | eee4e7f15df90f899211cde0a669d661085de05d /arch/s390/Kconfig | |
parent | 5327b9b83a9c45a3fcbcda224a2b02d9eea9f6bb (diff) | |
parent | 42d61b9b415686d81eaa022b846737548876e51d (diff) |
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (72 commits)
[S390] 3215/3270 console: remove wrong comment
[S390] dasd: remove BKL from extended error reporting code
[S390] vmlogrdr: remove BKL
[S390] vmur: remove BKL
[S390] zcrypt: remove BKL
[S390] 3270: remove BKL
[S390] vmwatchdog: remove lock_kernel() from open() function
[S390] monwriter: remove lock_kernel() from open() function
[S390] monreader: remove lock_kernel() from open() function
[S390] s390: remove unused nfsd #includes
[S390] ftrace: build ftrace.o when CONFIG_FTRACE_SYSCALLS is set for s390
[S390] etr/stp: put correct per cpu variable
[S390] tty3270: move keyboard compat ioctls
[S390] sclp: improve servicability setting
[S390] s390: use change recording override for kernel mapping
[S390] MAINTAINERS: Add s390 drivers block
[S390] use generic sockios.h header file
[S390] use generic termbits.h header file
[S390] smp: remove unused typedef and defines
[S390] cmm: free pages on hibernate.
...
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. |