Controlled use of a memory monitor instruction and memory wait instruction in a virtualized environment

A computing host, comprising:

• a memory;
• and
• a processor device coupled to the memory to:
• determine, by a hypervisor executing on the processor device, that a first process executing in a virtual machine (VM) attempted to execute a memory monitor instruction;
• determine a memory range associated with the memory monitor instruction;
• alter a virtual machine control structure (VMCS) that corresponds to the VM to prevent a virtual machine exit (VMEXIT) upon a subsequent execution of a memory wait instruction by the first process;
• execute, by the hypervisor, the memory monitor instruction to cause the memory range to be monitored for a store command to the memory range;
• and
• return control, by the hypervisor, to the first process to begin execution at an instruction after the memory monitor instruction.

A computer program product stored on a non-transitory computer-readable storage medium and including instructions to cause a processor device to:

• determine, by a hypervisor executing on the processor device, that a first process executing in a virtual machine (VM) attempted to execute a memory monitor instruction;
• determine a memory range associated with the memory monitor instruction;
• alter a virtual machine control structure (VMCS) that corresponds to the VM to prevent a virtual machine exit (VMEXIT) upon a subsequent execution of a memory wait instruction by the first process;
• execute, by the hypervisor, the memory monitor instruction to cause the memory range to be monitored for a store command to the memory range;
• and
• return control, by the hypervisor, to the first process to begin execution at an instruction after the memory monitor instruction.