Trying to add IBM System X3650 3M RHEV-H to RHEVM Westmere cluster fails with the error: CPU_TYPE_INCOMPATIBLE_WITH_CLUSTER

Issue

Seeing "Host moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : aes, model_Westmere" in rhevm event log when trying to add host to RHEV cluster.

According to the Intel Product information, the model number (44 / 0x2C) and Intel Architecture and Processor Identification With CPUID Model and Family Numbers it should be Westmere.

But RHEV-M thinks it should be a Nehalem:

RHEV-M / Host / General properties
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Number of CPUs:   12
CPU Name:         Intel Nehalem Family
CPU Type:         Intel(R) Xeon(R) CPU        X5670  @ 2.93GHz
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