diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-12-07 06:51:43 -0500 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2009-12-07 06:51:33 -0500 |
| commit | b11b53342773361f3353b285eb6a3fd6074e7997 (patch) | |
| tree | b7fda314933b82d39cb8d30c7882ca3044dd0367 /arch/s390/kvm/Kconfig | |
| parent | 61365e132ef987f7719af5d2e434db4465957637 (diff) | |
[S390] Improve address space mode selection.
Introduce user_mode to replace the two variables switch_amode and
s390_noexec. There are three valid combinations of the old values:
1) switch_amode == 0 && s390_noexec == 0
2) switch_amode == 1 && s390_noexec == 0
3) switch_amode == 1 && s390_noexec == 1
They get replaced by
1) user_mode == HOME_SPACE_MODE
2) user_mode == PRIMARY_SPACE_MODE
3) user_mode == SECONDARY_SPACE_MODE
The new kernel parameter user_mode=[primary,secondary,home] lets
you choose the address space mode the user space processes should
use. In addition the CONFIG_S390_SWITCH_AMODE config option
is removed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/Kconfig')
| -rw-r--r-- | arch/s390/kvm/Kconfig | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig index bf164fc2186..6ee55ae84ce 100644 --- a/arch/s390/kvm/Kconfig +++ b/arch/s390/kvm/Kconfig | |||
| @@ -20,7 +20,6 @@ config KVM | |||
| 20 | depends on HAVE_KVM && EXPERIMENTAL | 20 | depends on HAVE_KVM && EXPERIMENTAL |
| 21 | select PREEMPT_NOTIFIERS | 21 | select PREEMPT_NOTIFIERS |
| 22 | select ANON_INODES | 22 | select ANON_INODES |
| 23 | select S390_SWITCH_AMODE | ||
| 24 | ---help--- | 23 | ---help--- |
| 25 | Support hosting paravirtualized guest machines using the SIE | 24 | Support hosting paravirtualized guest machines using the SIE |
| 26 | virtualization capability on the mainframe. This should work | 25 | virtualization capability on the mainframe. This should work |