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OASIS Virtual I/O Device (VIRTIO) TC

This TC operates under the Non-Assertion Mode of the OASIS IPR Policy.

Disclosures

The following is a list of Notices of Disclosed Claims made to the TC, as defined in and required by the OASIS IPR Policy.

IPR disclosures made by Red Hat

Statement regarding IPR, submitted by Red Hat, Jan 29, 2019

Red Hat has filed several United States patent applications that might become essential to an OASIS Standards Final Deliverable.

The US Patent Nos. 9811260 and 9311164 "System and Method for Ballooning wth Assigned Devices", the US Patent No. 9934157 and the US Publication No. 20180225221 "Post-Copy VM Migration Speedup Using Free Page Hinting", the US Publication No. 20170147371 "Virtual Machine Migration Using Memory Page Hints", the US Patent No. 9965311 "Application of a Pattern to Inactive Pages in Guest Memory", the US Patent No. 10169088 "Lockless Free Memory Ballooning for Virtual Machines", the US Patent Nos. 10083058 and 9672062 "Batched Memory Page Hinting" and the US Publication No. 20180239707 "Page Cache Management During Migration" are relevant to section "Traditional Memory Balloon Device" of the Virtual I/O Device (VIRTIO) specification.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Jan 29, 2019

Red Hat has filed several United States patent applications that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 10013199, "Translation Bypass by Host IOMMU for Systems with Virtual IOMMU" as well as the unpublished applications are relevant to section "Device Types" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished applications, until such time as the applications are published or the patents are issued.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Jan 29, 2019

Red Hat has filed several United States patent applications that might be essential to an OASIS Standards Final Deliverable.

The US Patent No. 10037292 and the US Publication No. 20180314656 "Sharing Message-Signaled Interrupt Vectors in Multi-Processor Computer Systems", the US Patent Nos. 9235427 and 10185572 and the US Publication No. 20160124753 "Operating System Load Device Resource Selection" and the US Patent No. 9990216 "Providing Hypercall Interface for Virtual Machines", the US Patent No. 9235427 "System and Method for Configuring a Virtual Device", the US Patent Nos. 9235427, 10185572 and the US Publication No. 20160124753 "Operating System Load Device Resource Selection" are relevant to section "Virtio Over PCI Bus" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished applications, until such time as the applications are published or the patents are issued.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Jan 29, 2019

Red Hat has filed, or is in the process of filing, several United States patent applications that might be essential to an OASIS Standards Final Deliverable.

The US Patent No. 10152275 "Reverse Order Submission for Pointer Rings" as well as the unpublished applications are relevant to section "Virtqueues" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished applications, until such time as the applications are published or the patents are issued.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Jan 29, 2019

Red Hat has filed several United States patent applications that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 9948568, "Packet Size Control Using Maximum Transmission Units for Facilitating Packet Transmission", the US Patent No. 10129148, "Table-Based Load Balancing for Bonded Network Interfaces", the US Patent No. 9785459 "Managed Network Filter/Forward Programming in a Virtualization System by an Agent More Privileged than the Hypervisor", the US Patent No. 9934058 and the US Publication No. 20160127252 "Guest-Influenced Packet Transmission", the US Patent Nos. 10162662, 9262195 and 10146568 "Manageable External Wake of Virtual Machines", the US Patent No. 9721091 "Guest-Driven Host Execution", the US Patent No. 9094351 "Implicit and Dynamic Receive Queue Assignment in Virtualized Systems" and the US Patent No. 10027604 "Implicit Dynamic Receive Queue Steering for Unidirectional Flows in Virtualized Systems" are relevant to section "Networking Device" of the Virtual I/O Device (VIRTIO) specification.

Should these patents be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Feb 14, 2018 and amended Jan 29, 2019

Red Hat has filed several United States patent applications that might be essential to an OASIS Standards Final Deliverable.

The US Patent No. 9846610 "Page Fault-Based Fast Memory-Mapped I/O for Virtual Machines" and the US Patent No. 9983893 "Handling memory-mapped input-output (MMIO) based instructions using fast access addresses" are relevant to section "Virtio Over PCI Bus" of the Virtual I/O Device (VIRTIO) specification.

Should this patent be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Feb 14, 2018

Red Hat has filed several United States patent applications that might become essential to an OASIS Standards Final Deliverable.

The unpublished applications are relevant to sections "Virtqueues" and "Virtio Over PCI Bus" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished applications, until such time as the applications are published or the patents are issued.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Feb 14, 2018

Red Hat has been issued a United States patent and filed a patent application that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 9710372 as well as a US Publication No. 20170315907 titled "Virtual machine based huge page balloon support" are relevant to section "Traditional Memory Balloon Device" of the Virtual I/O Device (VIRTIO) specification.

Should this patent application be issued as a patent, and should one of these applications be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Feb 14, 2018

Red Hat has been issued a United States patent that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 9798482 titled "Efficient and secure memory allocation in virtualized computer systems" is relevant to section "Traditional Memory Balloon Device" of the Virtual I/O Device (VIRTIO) specification.

Should this patent be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, Feb 14, 2018

Red Hat has filed several United States patent applications that might become essential to an OASIS Standards Final Deliverable.

The unpublished applications are relevant to section "Traditional Memory Balloon Device" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished applications, until such time as the applications are published or the patents are issued.

Should one of these patent applications be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, July 28, 2016 and amended Feb 14, 2018

Red Hat has been issued a United States patent that might become essential to an OASIS Standards Final Deliverable, and Red Hat has filed a United States patent application that might become essential to an OASIS Standards Final Deliverable.

The US Patent No 9836402 titled "Guest Ordering of Host File System Writes" as well as the unpublished application are relevant to section "Device Types" of the Virtual I/O Device (VIRTIO) specification.

Red Hat is unable to provide more specific information regarding the unpublished application, until such time as the application is published or the patent is issued.

Should this patent application be issued as a patent, and should one of these applications be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, April 19, 2016 and amended Feb 14, 2018

Red Hat has been issued a United States patent that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 9766917 titled "Limited Virtual Device Polling Based on Virtual CPU Pre-emption" is relevant to section "Basic Facilities of a Virtio Device" of the Virtual I/O Device (VIRTIO) specification.

Should this patent be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, April 11, 2016 and amended Feb 14, 2018

Red Hat has filed a United States patent application that might become essential to an OASIS Standards Final Deliverable.

US Publication No. 20170249465 titled "Host-Driven Application Memory Protection For Virtual Machines" is relevant to sections "Basic Facilities of a Virtio Device" and "Virtio Over PCI Bus" of the Virtual I/O Device (VIRTIO) specification.

Should this patent application be issued as a patent, and be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, April 7, 2016 and amended Jan 29, 2019

To: OASIS From: Michael S. Tsirkin, Red Hat Date: April 7, 2016 amended Jan 29, 2019

Red Hat has filed a United States patent application that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 10164892, titled "Overhead management for virtual machines", is relevant to section "Networking Device" of the Virtual I/O Device (VIRTIO) specification.

Should this patent be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, April 7, 2016 and amended Jan 24, 2018 and Jan 29, 2019

To: OASIS From: Michael S. Tsirkin, Red Hat Date: April 7, 2016 amended Jan 24, 2018 and Jan 29. 2018 Red Hat has filed United States patent applications that may contain essential claims or claims that might become essential to an OASIS Standards Final Deliverable.

The US Patent Nos. 10019325 and 9507626 titled "Virtual Device Backend Recovery" are relevant to section "Basic Facilities of a Virtio Device" of the Virtual I/O Device (VIRTIO) specification.

Should these patents be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

Statement regarding IPR, submitted by Red Hat, April 7, 2016 and amended Jan 24, 2018 and Jan 29, 2019

To: OASIS From: Michael S. Tsirkin, Red Hat Date: April 7, 2016 amended Jan 24, 2018 Red Hat has filed a United States patent application that might become essential to an OASIS Standards Final Deliverable.

The US Patent No. 10051087 titled "Dynamic Cache-Efficient Event Suppression For Network Function Virtualization" is relevant to section "Basic Facilities of a Virtio Device" of the Virtual I/O Device (VIRTIO) specification.

Should this patent be identified as essential to the compliant implementation of an OASIS Standards Final Deliverable produced by the VIRTIO TC, Red Hat will operate, as specified by the VIRTIO TC, under the Non-Assertion Mode TC Requirements described in section 10.3 of the OASIS IPR Policy (as of the date of this disclosure).

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