| 摘要 |
A mechanism for on-demand hypervisor memory mapping is disclosed. A method of the invention includes trapping an access instruction to a memory location from a virtual machine (VM) managed by a hypervisor of a host machine, determining whether a number of accesses to the memory location by the VM exceeds a threshold, if the number of accesses to the memory location by the VM does not exceed the threshold, then emulating the access instruction to the memory location on behalf of the VM, and if the number of accesses to the memory location by the VM exceeds the threshold, then allocating guest physical memory for the VM associated with the memory location.
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