Commit 0ac96caf authored by David Hildenbrand's avatar David Hildenbrand Committed by Christian Borntraeger
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KVM: s390: base hrtimer on a monotonic clock 



The hrtimer that handles the wait with enabled timer interrupts
should not be disturbed by changes of the host time.

This patch changes our hrtimer to be based on a monotonic clock.

Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent bda343ef

arch/s390/kvm/kvm-s390.c

+1 −1
Original line number Diff line number Diff line
@@ -735,7 +735,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) 
		if (rc)

			return rc;

	}

	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);

	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);

	vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;

	get_cpu_id(&vcpu->arch.cpu_id);

	vcpu->arch.cpu_id.version = 0xff;