Commit Graph

5 Commits

Author SHA1 Message Date
Martin Schwidefsky 1ec2772e0c s390/diag: add a statistic for diagnose calls
Introduce /sys/debug/kernel/diag_stat with a statistic how many diagnose
calls have been done by each CPU in the system.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-10-14 14:32:06 +02:00
Xu Wang b2527d2009 s390/watchdog: support for KVM hypervisors and delete pr_info messages
This patch extends the diag288 watchdog driver to be able to deal with KVM
hypervisors. Only z/VM needs special handling, we can use the same interface
as on LPAR. Remove all pr_info output to avoid misconception. Because there
is no value in these messages and only the pr_err messages make sense.

Signed-off-by: Xu Wang <gesaint@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-03-25 11:49:42 +01:00
Xu Wang 9ec6cb80c8 s390/watchdog: enable KEEPALIVE for /dev/watchdog
There's no reason why we wouldn't want to be able to send a keep alive
message to /dev/watchdog (feed dog) for the s390 diag288 watchdog, so
let's enable the WDIOF_KEEPALIVEPING option.

Signed-off-by: Xu Wang <gesaint@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-03-25 11:49:41 +01:00
Philipp Hachtmann 646f919e93 s390/watchdog: add support for LPAR operation (diag288)
Add the LPAR variant of the diag 288 watchdog to the driver.
The only available action on timeout for LPAR is a PSW restart.

Signed-off-by: Philipp Hachtmann <phacht@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-06-10 10:48:29 +02:00
Philipp Hachtmann f7a94db4e9 s390/watchdog: use watchdog API
Converted the vmwatchdog driver to use the kernel's watchdog API.

Signed-off-by: Philipp Hachtmann <phacht@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-06-10 10:48:29 +02:00