From d6b6d166864fa97ca3b1ed1a5c62fd3b53d4606f Mon Sep 17 00:00:00 2001 From: Carsten Otte Date: Wed, 4 Jan 2012 10:25:25 +0100 Subject: [PATCH] KVM: s390: ucontrol: disable in-kernel irq stack This patch disables the in-kernel interrupt stack for KVM virtual machines that are controlled by user. Userspace has to take care of handling interrupts on its own. Signed-off-by: Carsten Otte Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- arch/s390/kvm/kvm-s390.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 02510946864e..5b5c28e471df 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -505,7 +505,8 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) if (test_thread_flag(TIF_MCCK_PENDING)) s390_handle_mcck(); - kvm_s390_deliver_pending_interrupts(vcpu); + if (!kvm_is_ucontrol(vcpu->kvm)) + kvm_s390_deliver_pending_interrupts(vcpu); vcpu->arch.sie_block->icptcode = 0; local_irq_disable(); -- 2.20.1