[PATCH v1 0/4] s390/kvm: fix MVPG when in VSIE

[Claudio Imbrenda]

The current handling of the MVPG instruction when executed in a nested
guest is wrong, and can lead to the nested guest hanging.

This patchset fixes the behaviour to be more architecturally correct,
and fixes the hangs observed.

Claudio Imbrenda (4):
  s390/kvm: VSIE: stop leaking host addresses
  s390/kvm: extend guest_translate for MVPG interpretation
  s390/kvm: add kvm_s390_vsie_mvpg_check needed for VSIE MVPG
  s390/kvm: VSIE: correctly handle MVPG when in VSIE

 arch/s390/kvm/gaccess.c | 88 ++++++++++++++++++++++++++++++++++++++---
 arch/s390/kvm/gaccess.h |  3 ++
 arch/s390/kvm/vsie.c    | 78 +++++++++++++++++++++++++++++++++---
 3 files changed, 159 insertions(+), 10 deletions(-)

-- 
2.26.2