[0/1] diag9c forwarding

Message

Christian Borntraeger Jan. 18, 2021, 1:17 p.m. UTC

This patch will forward the yieldto hypercall (diag9c) if in the host
the target CPU is also not running. As we do not yet have performance
data (and recommendations) the default is turned off, but this can
be changed during runtime.

Pierre Morel (1):
  s390:kvm: diag9c forwarding

 arch/s390/include/asm/kvm_host.h |  1 +
 arch/s390/include/asm/smp.h      |  1 +
 arch/s390/kernel/smp.c           |  1 +
 arch/s390/kvm/diag.c             | 31 ++++++++++++++++++++++++++++---
 arch/s390/kvm/kvm-s390.c         |  6 ++++++
 arch/s390/kvm/kvm-s390.h         |  8 ++++++++
 6 files changed, 45 insertions(+), 3 deletions(-)