Tony Krowiak 7aa7b2a80c s390/vfio-ap: clean up irq resources if possible
The architecture does not specify whether interrupts are disabled as part
of the asynchronous reset or upon return from the PQAP/ZAPQ instruction.
If, however, PQAP/ZAPQ completes with APQSW response code 0 and the
interrupt bit in the status word is also 0, we know the interrupts are
disabled and we can go ahead and clean up the corresponding resources;
otherwise, we must wait until the asynchronous reset has completed.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Suggested-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Tested-by: Viktor Mihajlovski <mihajlov@linux.ibm.com>
Link: https://lore.kernel.org/r/20230815184333.6554-3-akrowiak@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-08-18 15:09:28 +02:00
..
2023-07-03 11:19:42 +02:00
2023-07-03 11:19:42 +02:00
2023-07-03 11:19:42 +02:00
2023-07-03 11:19:42 +02:00
2023-07-03 11:19:42 +02:00
2022-04-25 13:54:14 +02:00
2023-07-03 11:19:42 +02:00
2023-07-03 11:19:42 +02:00
2022-04-25 13:54:14 +02:00
2022-04-25 13:54:14 +02:00