Merge tag 'kvm-s390-next-6.6-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

- PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch)
  Allows a PV guest to use crypto cards. Card access is governed by
  the firmware and once a crypto queue is "bound" to a PV VM every
  other entity (PV or not) looses access until it is not bound
  anymore. Enablement is done via flags when creating the PV VM.

- Guest debug fixes (Ilya)

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 9bd0a873f3b1..85e39f472bb4 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -1392,6 +1392,7 @@ int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
 	int rc = 0;
+	bool delivered = false;
 	unsigned long irq_type;
 	unsigned long irqs;
 
@@ -1465,6 +1466,19 @@ int __must_check kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
 			WARN_ONCE(1, "Unknown pending irq type %ld", irq_type);
 			clear_bit(irq_type, &li->pending_irqs);
 		}
+		delivered |= !rc;
+	}
+
+	/*
+	 * We delivered at least one interrupt and modified the PC. Force a
+	 * singlestep event now.
+	 */
+	if (delivered && guestdbg_sstep_enabled(vcpu)) {
+		struct kvm_debug_exit_arch *debug_exit = &vcpu->run->debug.arch;
+
+		debug_exit->addr = vcpu->arch.sie_block->gpsw.addr;
+		debug_exit->type = KVM_SINGLESTEP;
+		vcpu->guest_debug |= KVM_GUESTDBG_EXIT_PENDING;
 	}
 
 	set_intercept_indicators(vcpu);