公开(公告)号：US20240330131A1

公开(公告)日：2024-10-03

申请号：US18607643

申请日：2024-03-18

Applicant: QUALCOMM Incorporated

Inventor： Piyush TEWARI ,  Ananda Kishore PARASA

IPC: G06F11/14 ,  G06F11/07

CPC classification number: G06F11/1484 ,  G06F11/0793 ,  G06F11/1438

Abstract: A system for global system memory management unit (SMMU) fault handling including a peripheral device having a guest virtual machine (GVM), the peripheral device configured to access a memory (DDR) through a system memory management unit (SMMU), a hosted hypervisor associated with the peripheral device, the GVM, the SMMU and the memory (DDR), where upon identification of a faulty memory transaction and a global SMMU fault being issued, the hosted hypervisor configured to identify that a stream identifier (SID) associated with the global SMMU fault is assigned to the GVM, and the hosted hypervisor configured to reset the GVM only such that a full system restart is avoided.