RE: [Xen-devel] [PATCH][VT] parse vcpus for VMX guest

["Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>]

Nakajima, Jun wrote:
> Keir Fraser wrote:
>> Why does ioemu need to know the number of vcpus? I see the patch adds
>> this option to ioemu, but you don't add any code that actually uses
>> it (yet). Do you have plans to? 
>> 
>>   -- Keir
>> 
> 
> Yes, we do. We have code for local APIC (mostly in Xen) and IO APIC
> device models (in qemu-dm) in preparation for SMP VMX guests. Since
> guests don't explicitly send EOI to IO APIC upon timer interrupts, we
> are also hoping it would reduce the traffic between qemu-dm. We'll
> send out the patch shortly once more testing is done.

I think one more possible reason is,  the qemu-dm may need to know the
vcpu number to get the io request.

Thanks
Yunhong Jiang
> 
>> On 20 Sep 2005, at 16:40, Li, Xin B wrote:
>> 
>>> Parse vcpus for VMX guest.
>>> 
>>> Vcpus are passed to device model and vmx domain builder.
>>> 
>>> Signed-off-by: Yan Li <yanx.li@xxxxxxxxx>
>>> Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>
>>> 
> <vmx_parse_vcpus.patch>_______________________________________________
> 
> Jun
> ---
> Intel Open Source Technology Center
> 
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