diff options
| author | Jens Freimann <jfrei@linux.vnet.ibm.com> | 2013-07-03 15:18:35 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-03-31 21:07:27 +0200 |
| commit | 6d3da241416e6088f83a7ff1f37fb6bb518d9bc8 (patch) | |
| tree | c10a62568354ed53722f735f8a4ad600d720b177 /crypto/async_tx/Kconfig | |
| parent | 94aa033efcac47b09db22cb561e135baf37b7887 (diff) | |
KVM: s390: deliver floating interrupts in order of priority
This patch makes interrupt handling compliant to the z/Architecture
Principles of Operation with regard to interrupt priorities.
Add a bitmap for pending floating interrupts. Each bit relates to a
interrupt type and its list. A turned on bit indicates that a list
contains items (interrupts) which need to be delivered. When delivering
interrupts on a cpu we can merge the existing bitmap for cpu-local
interrupts and floating interrupts and have a single mechanism for
delivery.
Currently we have one list for all kinds of floating interrupts and a
corresponding spin lock. This patch adds a separate list per
interrupt type. An exception to this are service signal and machine check
interrupts, as there can be only one pending interrupt at a time.
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'crypto/async_tx/Kconfig')
0 files changed, 0 insertions, 0 deletions