The difference from TAKE2
Status
I tested 2xDomU Linux Kernel Compile Test on 4xpCPU w/ credit scheduler.
It passes more than 16h testing.(21h in real)
Changes
1)migrate_timer for hlt_timer_fn is added for context_switch
This makes correct pCPU work for timer.
2)To avoid soft lockup message(10sec timer stop) at Dom0/U,
I add the condition for checking in vcpu_get_next_timer_ns.
domain_itm > ia64_get_itc
If above condition is not satisfied
Just set the timer interval itm_delta from NOW().
3)Remove vcpu_pend_timer from hlt_timer_fn.
It previously makes the state that vcpu is running but timer(VIRQ_ITC) is
stopped.
(References)
Yamahata's for VTI migrate timer.
http://lists.xensource.com/archives/html/xen-ia64-devel/2006-07/msg00375.html
stop_timer
http://lists.xensource.com/archives/html/xen-ia64-devel/2006-07/msg00171.html
Signed-off-by: Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx>
Thanks
Atsushi SAKAI
>Hi, Isaku
>
> Logically, it could be removed.
>But I am not tested under your suggest configuration.
>I will test on your configuration.
>
>Thanks
>Atsushi SAKAI
>
>
>>On Tue, Aug 22, 2006 at 05:28:54PM +0900, Atsushi SAKAI wrote:
>>
>>> So this patch does not need to add vcpu_pend_timer fixes.
>>
>>O.K.
>>So the modification of vcpu_pend_timer() is unnecessary for the patch.
>>
>>
>>> But this should be fixed in sometime.
>>
>>Does you mean that the following hank is still needed?
>>Why? What issue does the change resolve?
>>
>>@@ -1167,8 +1167,8 @@ void vcpu_pend_timer(VCPU *vcpu)
>> * handler has not been registered. Don't fire in such case.
>> */
>> if (vcpu->virq_to_evtchn[VIRQ_ITC]) {
>>+ PSCBX(vcpu, domain_itm_last) = PSCBX(vcpu,
>>domain_itm);
>> send_guest_vcpu_virq(vcpu, VIRQ_ITC);
>>- PSCBX(vcpu, domain_itm_last) = PSCBX(vcpu,
>>domain_itm);
>> }
>> } else
>> vcpu_pend_interrupt(vcpu, itv);
>>--
>>yamahata
>>
>
>
>
>
>
>
>
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>
pal_halt_light_emul_domu_take3b.patch
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