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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-02-27 00:37:30 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-02-27 00:37:30 +0300 |
| commit | d1bf85902c28dd990c08f1703ea94109223549a7 (patch) | |
| tree | 47d5fbf81e7568488ab53e24f676ba4a4ab5afef /drivers/s390/cio/chsc.c | |
| parent | 0d01bb89220490763d89571d27e7ee3f13f9b372 (diff) | |
| download | linux-d1bf85902c28dd990c08f1703ea94109223549a7.tar.xz | |
[S390] cio: fix storage key handling
Some parts of cio do not shift PAGE_DEFAULT_KEY correctly and end up
with an incorrect key in their data structures.
Since the default key is zero this doesn't really matter. However if
somebody would use key-controlled protection for debugging purposes
it would be quite helpful if all of this would work as expected.
Also remove a stale declaration.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chsc.c')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 1ecd3e567648..4038f5b4f144 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -574,7 +574,7 @@ int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page) secm_area->request.length = 0x0050; secm_area->request.code = 0x0016; - secm_area->key = PAGE_DEFAULT_KEY; + secm_area->key = PAGE_DEFAULT_KEY >> 4; secm_area->cub_addr1 = (u64)(unsigned long)css->cub_addr1; secm_area->cub_addr2 = (u64)(unsigned long)css->cub_addr2; |