From 9f30f62163786a0b80e0886046b5c66e714e7e71 Mon Sep 17 00:00:00 2001 From: Michael Mueller Date: Thu, 31 Jan 2019 09:52:44 +0100 Subject: KVM: s390: add gib_alert_irq_handler() The patch implements a handler for GIB alert interruptions on the host. Its task is to alert guests that interrupts are pending for them. A GIB alert interrupt statistic counter is added as well: $ cat /proc/interrupts CPU0 CPU1 ... GAL: 23 37 [I/O] GIB Alert ... Signed-off-by: Michael Mueller Acked-by: Halil Pasic Reviewed-by: Pierre Morel Message-Id: <20190131085247.13826-14-mimu@linux.ibm.com> Signed-off-by: Christian Borntraeger --- arch/s390/kvm/kvm-s390.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/s390/kvm/kvm-s390.c') diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0de062e989e2..0099fbda2e98 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3460,6 +3460,8 @@ static int vcpu_pre_run(struct kvm_vcpu *vcpu) kvm_s390_patch_guest_per_regs(vcpu); } + clear_bit(vcpu->vcpu_id, vcpu->kvm->arch.gisa_int.kicked_mask); + vcpu->arch.sie_block->icptcode = 0; cpuflags = atomic_read(&vcpu->arch.sie_block->cpuflags); VCPU_EVENT(vcpu, 6, "entering sie flags %x", cpuflags); -- cgit v1.2.3