From ace5058763b72d128efcbe27969e89226c9c593a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 25 Mar 2013 17:22:50 +0100 Subject: KVM: s390: fix psw conversion in lpsw handler When converting a 64 bit psw to a 128 bit psw the addressing mode bit of the "addr" part of the 64 bit psw must be moved to the basic addressing mode bit of the "mask" part of the 128 bit psw. In addition the addressing mode bit must be cleared when moved to the "addr" part of the 128 bit psw. Otherwise an invalid psw would be generated if the orginal psw was in the 31 bit addressing mode. Signed-off-by: Heiko Carstens Acked-by: Cornelia Huck Signed-off-by: Cornelia Huck Signed-off-by: Gleb Natapov diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 7b397b3..844a2b9 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -286,7 +286,8 @@ int kvm_s390_handle_lpsw(struct kvm_vcpu *vcpu) vcpu->arch.sie_block->gpsw.mask = (new_psw.mask & ~PSW32_MASK_BASE) << 32; - vcpu->arch.sie_block->gpsw.addr = new_psw.addr; + vcpu->arch.sie_block->gpsw.mask |= new_psw.addr & PSW32_ADDR_AMODE; + vcpu->arch.sie_block->gpsw.addr = new_psw.addr & ~PSW32_ADDR_AMODE; if ((vcpu->arch.sie_block->gpsw.mask & PSW_MASK_UNASSIGNED) || (!(vcpu->arch.sie_block->gpsw.mask & PSW_MASK_ADDR_MODE) && -- cgit v0.10.2