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KVM: s390: rework code that sets the prefix

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There are several places in the kvm module, which set the prefix register.
Since we need to flush the cpu, lets combine this operation into a helper
function. This helper will also explicitely mask out the unused bits.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Christian Borntraeger 2012-01-11 11:19:32 +01:00 • committed by Avi Kivity
parent 2b036c6b86
commit 8d26cf7b40
4 changed files with 10 additions and 6 deletions
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3
arch/s390/kvm/interrupt.c
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@ -236,8 +236,7 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
VCPU_EVENT(vcpu, 4, "interrupt: set prefix to %x",
inti->prefix.address);
vcpu->stat.deliver_prefix_signal++;
vcpu->arch.sie_block->prefix = inti->prefix.address;
vcpu->arch.sie_block->ihcpu = 0xffff;
kvm_s390_set_prefix(vcpu, inti->prefix.address);
break;
case KVM_S390_RESTART: