diff options
| author | Michael Mueller | 2019-01-31 09:52:44 +0100 |
|---|---|---|
| committer | Christian Borntraeger | 2019-02-05 14:29:23 +0100 |
| commit | 9f30f62163786a0b80e0886046b5c66e714e7e71 (patch) | |
| tree | e96e4deba1cfed939ea9fa5dc80d78ecf208b75b /arch/s390/kvm/kvm-s390.c | |
| parent | KVM: s390: kvm_s390_gisa_clear() now clears the IPM only (diff) | |
| download | kernel-qcow2-linux-9f30f62163786a0b80e0886046b5c66e714e7e71.tar.gz kernel-qcow2-linux-9f30f62163786a0b80e0886046b5c66e714e7e71.tar.xz kernel-qcow2-linux-9f30f62163786a0b80e0886046b5c66e714e7e71.zip | |
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 <mimu@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Message-Id: <20190131085247.13826-14-mimu@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); |