[PATCH v3 0/1] KVM: s390: pv: make use of ultravisor AIV support

[Michael Mueller]

This patch enables the ultravisor adapter interruption vitualization
support.

Changes in v3:
- cache and test GISA descriptor only once in kvm_s390_gisa_enable()
- modified some comments
- removed some whitespace issues

Changes in v2:
- moved GISA disable into "put CPUs in PV mode" routine
- moved GISA enable into "pull CPUs out of PV mode" routine 

[1] https://lore.kernel.org/lkml/ae7c65d8-f632-a7f4-926a-50b9660673a1@xxxxxxxxxxxxx/T/#mcb67699bf458ba7482f6b7529afe589d1dbb5930
[2] https://lore.kernel.org/kvm/20220208165310.3905815-1-mimu@xxxxxxxxxxxxx/T/#e0ecf74ad7fdccc5ed22007e783106d4ef7b849df 

Michael Mueller (1):
  KVM: s390: pv: make use of ultravisor AIV support

 arch/s390/include/asm/uv.h |  1 +
 arch/s390/kvm/interrupt.c  | 56 ++++++++++++++++++++++++++++++++++----
 arch/s390/kvm/kvm-s390.c   | 11 ++++++--
 arch/s390/kvm/kvm-s390.h   | 11 ++++++++
 4 files changed, 70 insertions(+), 9 deletions(-)

-- 
2.32.0