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User has a chance to specify VCPU affinity through acrn-dm command line argument. Examples of the command line: 3 PCPUs: 1/2/3 --cpu_affinity 1-3 5 PCPUs: 2/3/6/7/8 --cpu_affinity 2,3,6-8 8 PCPUs: 2/3/6/7/9/10/11/12 --cpu_affinity 2,3,6-7,9,10-12 The specified pCPUs must be included in the guest VM's statically defined vm_config[].cpu_affinity_bitmap. Tracked-On: #4616 Signed-off-by: Zide Chen <zide.chen@intel.com>