From the DCUI, under Troubleshooting Options, enable the ESXi shell. Use Alt-F1 to switch screens to the ESXi console and log in as root. Use vi to edit /etc/vmware/config and add the following lines to the end of the file:
featMask.mockup.cpuid.NUMLEVELS = Val:0xb
featMask.mockup.cpuid.AVX = Val:0
featMask.mockup.cpuid.XSAVE = Val:0