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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/priv.c
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@ -56,8 +56,7 @@ static int handle_set_prefix(struct kvm_vcpu *vcpu)
goto out;
}
vcpu->arch.sie_block->prefix = address;
vcpu->arch.sie_block->ihcpu = 0xffff;
kvm_s390_set_prefix(vcpu, address);
VCPU_EVENT(vcpu, 5, "setting prefix to %x", address);
out: