Guest operating system buffer and log accesses by an input-output memory management unit
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United States of America
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Mar 25, 2025
Grant Date -
Dec 10, 2020
app pub date -
Jun 10, 2019
filing date -
Jun 10, 2019
priority date (Note) -
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Abstract
An electronic device includes a processor that executes a guest operating system; a memory having a guest portion that is reserved for storing data and information to be accessed by the guest operating system; and an input-output memory management unit (IOMMU). The IOMMU writes, in the guest portion, information into guest buffers and/or logs used for communicating information from the IOMMU to the guest operating system. The IOMMU also reads, from the guest portion, information in guest buffers and/or logs used for communicating information from the guest operating system to the IOMMU.
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