From: Thomas Huth <[email protected]> DIAGNOSE is a privileged instruction and thus we must make sure that we are in supervisor mode before taking any other actions.
Signed-off-by: Thomas Huth <[email protected]> Acked-by: Cornelia Huck <[email protected]> Signed-off-by: Cornelia Huck <[email protected]> --- arch/s390/kvm/diag.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 1c01a99..3074475 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -132,6 +132,9 @@ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu) { int code = (vcpu->arch.sie_block->ipb & 0xfff0000) >> 16; + if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE) + return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP); + trace_kvm_s390_handle_diag(vcpu, code); switch (code) { case 0x10: -- 1.8.2.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
