公开(公告)号：US20250036438A1

公开(公告)日：2025-01-30

申请号：US18225914

申请日：2023-07-25

Applicant: VMWARE, INC.

Inventor： Sowgandh Sunil Gadi ,  Petr Vandrovec ,  Harsha Vardhan Ghanta ,  Arunachalam Ramanathan ,  Yijiang Yuan ,  Doug Covelli ,  Balakrishna Tallapragada

IPC: G06F9/455

Abstract: System and method for enabling operations for virtual computing instances with physical passthru devices includes moving an input-output memory management unit (IOMMU) domain from a source virtual computing instance having a physical passthru device to a destination virtual computing instance, where guest operations are performed in the source virtual computing instance. After the destinating virtual computing instance is powered on, any interrupt notifications from the physical passthru device are buffered. After memory data is transferred from the source virtual computing instance to the destination virtual computing instance, posting of interrupt notifications from the physical passthru device is resumed and any buffered interrupt notifications from the physical passthru device are posted. Guest operations are performed in the destination virtual computing instance.