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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-02-26 22:37:30 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-02-26 22:37:30 +0100 |
| commit | d1bf85902c28dd990c08f1703ea94109223549a7 (patch) | |
| tree | 47d5fbf81e7568488ab53e24f676ba4a4ab5afef /drivers/s390/cio | |
| parent | 0d01bb89220490763d89571d27e7ee3f13f9b372 (diff) | |
| download | linux-stable-d1bf85902c28dd990c08f1703ea94109223549a7.tar.gz linux-stable-d1bf85902c28dd990c08f1703ea94109223549a7.tar.bz2 linux-stable-d1bf85902c28dd990c08f1703ea94109223549a7.zip | |
[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')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 2 | ||||
| -rw-r--r-- | drivers/s390/cio/chsc_sch.c | 2 | ||||
| -rw-r--r-- | drivers/s390/cio/qdio_setup.c | 10 | ||||
| -rw-r--r-- | drivers/s390/cio/qdio_thinint.c | 4 |
4 files changed, 9 insertions, 9 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; diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index c84ac9443079..df7388e88d31 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -237,7 +237,7 @@ static int chsc_async(struct chsc_async_area *chsc_area, int ret = -ENODEV; char dbf[10]; - chsc_area->header.key = PAGE_DEFAULT_KEY; + chsc_area->header.key = PAGE_DEFAULT_KEY >> 4; while ((sch = chsc_get_next_subchannel(sch))) { spin_lock(sch->lock); private = sch->private; diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 8c2dea5fa2b4..4464907715a4 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -333,10 +333,10 @@ static void __qdio_allocate_fill_qdr(struct qdio_irq *irq_ptr, irq_ptr->qdr->qdf0[i + nr].slsba = (unsigned long)&irq_ptr_qs[i]->slsb.val[0]; - irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY; - irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY; - irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY; - irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY; + irq_ptr->qdr->qdf0[i + nr].akey = PAGE_DEFAULT_KEY >> 4; + irq_ptr->qdr->qdf0[i + nr].bkey = PAGE_DEFAULT_KEY >> 4; + irq_ptr->qdr->qdf0[i + nr].ckey = PAGE_DEFAULT_KEY >> 4; + irq_ptr->qdr->qdf0[i + nr].dkey = PAGE_DEFAULT_KEY >> 4; } static void setup_qdr(struct qdio_irq *irq_ptr, @@ -350,7 +350,7 @@ static void setup_qdr(struct qdio_irq *irq_ptr, irq_ptr->qdr->iqdsz = sizeof(struct qdesfmt0) / 4; /* size in words */ irq_ptr->qdr->oqdsz = sizeof(struct qdesfmt0) / 4; irq_ptr->qdr->qiba = (unsigned long)&irq_ptr->qib; - irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY; + irq_ptr->qdr->qkey = PAGE_DEFAULT_KEY >> 4; for (i = 0; i < qdio_init->no_input_qs; i++) __qdio_allocate_fill_qdr(irq_ptr, irq_ptr->input_qs, i, 0); diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 091d904d3182..9942c1031b25 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -198,8 +198,8 @@ static int set_subchannel_ind(struct qdio_irq *irq_ptr, int reset) .code = 0x0021, }; scssc_area->operation_code = 0; - scssc_area->ks = PAGE_DEFAULT_KEY; - scssc_area->kc = PAGE_DEFAULT_KEY; + scssc_area->ks = PAGE_DEFAULT_KEY >> 4; + scssc_area->kc = PAGE_DEFAULT_KEY >> 4; scssc_area->isc = QDIO_AIRQ_ISC; scssc_area->schid = irq_ptr->schid; |