公开(公告)号：US20230025699A1

公开(公告)日：2023-01-26

申请号：US17530500

申请日：2021-11-19

Applicant: VMWARE, INC.

Inventor： KIRAN TATI ,  Preeti Agarwal ,  Ishan Banerjee ,  Rajesh Venkatasubramanian ,  Ashish Kaila ,  Halesh Sadashiv ,  Valeriy Zhuravlev

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.