Commit 89b5b4de authored Nov 24, 2015 by David Hildenbrand Committed by Christian Borntraeger Jun 10, 2016

KVM: s390: guestdbg: signal missing hardware support



Without guest-PER enhancement, we can't provide any debugging support.
Therefore act like kernel support is missing.

Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

parent b9e28897

arch/s390/kvm/kvm-s390.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -2179,6 +2179,8 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,

	if (dbg->control & ~VALID_GUESTDBG_FLAGS)		if (dbg->control & ~VALID_GUESTDBG_FLAGS)
	return -EINVAL;		return -EINVAL;
			if (!sclp.has_gpere)
			return -EINVAL;

	if (dbg->control & KVM_GUESTDBG_ENABLE) {		if (dbg->control & KVM_GUESTDBG_ENABLE) {
	vcpu->guest_debug = dbg->control;		vcpu->guest_debug = dbg->control;