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[Xen-users] Make 2, 3 & 4 V-CPU HVMs appear as a one socket multicore CP

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Make 2, 3 & 4 V-CPU HVMs appear as a one socket multicore CPU
From: "Robert Dunkley" <Robert@xxxxxxxxx>
Date: Wed, 1 Oct 2008 12:57:21 +0100
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Thread-topic: Make 2, 3 & 4 V-CPU HVMs appear as a one socket multicore CPU

I have read the examples like the one below but still do not understand how I can make 2, 3 and 4 VCPU system appear as a single socket multi core CPU in the HVM. Does anyone know what I would have to set the CPUID to in order to achieve this?

 

Example:

+# Example for amd, expose a 5-core processor :

+# cpuid = ['1:ebx=xxxxxxxx00000001xxxxxxxxxxxxxxxx,

+#             edx=xxx1xxxxxxxxxxxxxxxxxxxxxxxxxxxx',

+# '0x80000008:ecx=xxxxxxxxxxxxxxxx0000xxxx00001010']

+#  - CPUID.1[EBX] : (Thread * Cores ) per processors

+#  - CPUID.1[EDX][HT] : Enable HT

+#  - CPUID.0x80000008[ECX] : Number of vcpus * 2

+#vcpus=5

 

 

 

Thanks,

 

Rob

 

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