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(parent: 971eb77) | patch
KVM: s390: Don't exit SIE on SIGP sense running
authorChristian Borntraeger <borntraeger@de.ibm.com>
Thu, 17 Jun 2010 21:16:20 +0000 (23:16 +0200)
committerAvi Kivity <avi@redhat.com>
Sun, 1 Aug 2010 07:46:59 +0000 (10:46 +0300)
commitfc34531db3cf8c422f2ff7cf4ef507a3ca672cd2
tree2a352c26d5fd09dc26dc07e1bd6f5dcdadc33efctree | snapshot (tar.gz zip)
parent971eb77f87bfd352a56a24651922d0383db76219commit | diff
KVM: s390: Don't exit SIE on SIGP sense running

Newer (guest) kernels use sigp sense running in their spinlock
implementation to check if the other cpu is running before yielding
the processor. This revealed some wrong guest settings, causing
unnecessary exits for every sigp sense running.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/s390/include/asm/kvm_host.h diff | blob | blame | history
arch/s390/kvm/kvm-s390.c diff | blob | blame | history