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Article ID: 340274
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Updated On:
Issue/Introduction
Memory protection extensions (MPX) were introduced in Intel Skylake generation CPUs and provided hardware support for bound checking. This feature will not be supported in Intel CPUs beginning with the Ice Lake generation.
Starting with ESXi 6.7 P02 and ESXi 7.0 GA, in order to minimize disruptions during future upgrades, VMware will no longer expose MPX by default to VMs at power-on. A VM configuration option can be used to continue exposing MPX.
Environment
VMware vSphere ESXi 7.0.0
VMware vSphere ESXi 6.5
VMware vSphere ESXi 6.7
Resolution
To re-enable this feature, open the
virtual_machine.vmx and add
cpuid.enableMPX = TRUE. For more information, see
Set Advanced Virtual Machine Attributes .