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. v1->v2 * complete rewrite Claudio Imbrenda (2): s390/kvm: extend kvm_s390_shadow_fault to return entry pointer s390/kvm: VSIE: correctly handle MVPG when in VSIE arch/s390/kvm/gaccess.c | 26 ++++++++-- arch/s390/kvm/gaccess.h | 5 +- arch/s390/kvm/vsie.c | 102 ++++++++++++++++++++++++++++++++++++---- 3 files changed, 119 insertions(+), 14 deletions(-) -- 2.26.2
