[SeaBIOS] [PATCH 2/2] acpi: Set FORCE_APIC_CLUSTER_MODEL bit of FADT flags

zhanghailiang zhang.zhanghailiang at huawei.com
Fri Aug 22 02:28:10 CEST 2014


On 2014/8/21 21:42, Kevin O'Connor wrote:
> On Thu, Aug 21, 2014 at 05:23:41PM +0800, zhanghailiang wrote:
>> If we start Windows 2008 R2 DataCenter with number of cpu less than 8,
>> The system will use APIC Flat Logical destination mode as default configuration,
>> Which has an upper limit of 8 CPUs.
>>
>> The fault is that VM can not show all processors within Task Manager if
>> we hot-add cpus when the number of cpus in VM extends the limit of 8.
>>
>> If we use cluster destination model, the problem will be solved.
>
> Thanks.  However, recent versions of QEMU provide the ACPI tables to
> SeaBIOS, and SeaBIOS no longer uses its ACPI generation code on these
> QEMU versions.  Instead of updating SeaBIOS, you should send an
> equivalent patch to QEMU.
>

Hi,

I have sent such a patch to qemu community.:)

Thanks,
zhanghailiang
> The first patch looks good though.
>
> Cheers,
> -Kevin
>
>





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