Re: [PATCH 2/2 v5] KVM: PPC: booke: Add watchdog emulation

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On 07/23/2012 10:43 AM, Bhushan Bharat-R65777 wrote:
> 
> 
>> -----Original Message-----
>> From: Wood Scott-B07421
>> Sent: Monday, July 23, 2012 9:02 PM
>> To: Bhushan Bharat-R65777
>> Cc: Wood Scott-B07421; kvm-ppc@xxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx;
>> agraf@xxxxxxx
>> Subject: Re: [PATCH 2/2 v5] KVM: PPC: booke: Add watchdog emulation
>>
>> On 07/22/2012 11:10 PM, Bhushan Bharat-R65777 wrote:
>>>>> @@ -386,13 +387,23 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
>>>>> #ifdef CONFIG_KVM_EXIT_TIMING
>>>>>  	mutex_init(&vcpu->arch.exit_timing_lock);
>>>>>  #endif
>>>>> -
>>>>> +#ifdef CONFIG_BOOKE
>>>>> +	spin_lock_init(&vcpu->arch.wdt_lock);
>>>>> +	/* setup watchdog timer once */
>>>>> +	setup_timer(&vcpu->arch.wdt_timer, kvmppc_watchdog_func,
>>>>> +		    (unsigned long)vcpu);
>>>>> +#endif
>>>>>  	return 0;
>>>>>  }
>>>>
>>>> Can you do this in kvmppc_booke_init()?
>>>
>>> I do not think we can do this in kvmppc_booke_init(). Watchdog have
>>> association with vcpu, while there is no vcpu at kvmppc_booke_init().
>>
>> Sorry, I meant kvm_arch_vcpu_setup() in booke.c.
> 
> Any specific reason to move this in above mentioned function? Want to avoid #ifdef config_booke ?

Yes, to avoid the ifdef.  We already have a (poorly named) place for
booke-specific vcpu init.

-Scott


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