On Sun, Jul 12, 2009 at 02:03:17PM +0300, Avi Kivity wrote:
> On 07/09/2009 03:33 PM, Gleb Natapov wrote:
>>
>> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
>> index 05b6bc7..cf20dc1 100644
>> --- a/virt/kvm/kvm_main.c
>> +++ b/virt/kvm/kvm_main.c
>> @@ -1666,9 +1666,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
>> for (;;) {
>> prepare_to_wait(&vcpu->wq,&wait, TASK_INTERRUPTIBLE);
>>
>> - if ((kvm_arch_interrupt_allowed(vcpu)&&
>> - kvm_cpu_has_interrupt(vcpu)) ||
>> - kvm_arch_vcpu_runnable(vcpu)) {
>> + if (kvm_arch_vcpu_runnable(vcpu)) {
>> set_bit(KVM_REQ_UNHALT,&vcpu->requests);
>> break;
>> }
>>
>
> s390 has:
>
>
> int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
> {
> /* kvm common code refers to this, but never calls it */
> BUG();
> return 0;
> }
>
> So this needs to be updated. Please coordinate with the s390 folks.
>
s390 never calls kvm_vcpu_block(). They implement their own blocking.
--
Gleb.
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