公开(公告)号：US12169730B2

公开(公告)日：2024-12-17

申请号：US17530522

申请日：2021-11-19

Applicant: VMware LLC

Inventor： Rajesh Venkatasubramanian ,  Ishan Banerjee ,  Preeti Agarwal ,  Ashish Kaila ,  Halesh Sadashiv

IPC: G06F9/455

Abstract: Techniques that enable a hypervisor to (1) maintain shared memory pages and (2) handle memory accounting for VMs that are suspended to and resumed from the volatile memory of a host system are provided. Regarding (1), the hypervisor can maintain shared memory pages in volatile memory across the suspend-to-memory and resume-from-memory operations, without having to save their reference counts. Regarding (2), the hypervisor can keep track of the volatile memory reserved and consumed by VMs as they are suspended and resumed, without erroneously double counting that memory.