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| author | Carsten Otte <cotte@de.ibm.com> | 2011-10-30 15:16:59 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:44 +0100 |
| commit | 69ba97436647f3b793f8e0784d1cde63adf241ea (patch) | |
| tree | 6438a5df039ddd7e1641848a8f0d0cf137248b17 | |
| parent | d98e19ccef10c5aadccc4ffe2925e4099ff9606a (diff) | |
| download | linux-69ba97436647f3b793f8e0784d1cde63adf241ea.tar.gz linux-69ba97436647f3b793f8e0784d1cde63adf241ea.tar.bz2 linux-69ba97436647f3b793f8e0784d1cde63adf241ea.zip | |
[S390] load user asce on sie_fault
On sie_fault we need to switch back to user ASCE. Otherwise we get
interresting effects when exiting to "userspace" while the guest
space is still active.
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/kernel/entry64.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index e34907560c23..83a93747e2fd 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -1081,6 +1081,7 @@ sie_exit: lghi %r2,0 br %r14 sie_fault: + lctlg %c1,%c1,__LC_USER_ASCE # load primary asce lg %r14,__LC_THREAD_INFO # pointer thread_info struct ni __TI_flags+6(%r14),255-(_TIF_SIE>>8) lg %r14,__SF_EMPTY+8(%r15) # load guest register save area |