[PATCH] IPR: add statement regarding Shared Memory Regions/File System Device

[Stefan Hajnoczi <stefanha@redhat.com>]

Red Hat has a patent and some applications related to the Shared Memory
Regions and File System Device sections in VIRTIO 1.2. Disclose details
of these patents.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 IPR.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/IPR.md b/IPR.md
index 529e6a4..a13dd6e 100644
--- a/IPR.md
+++ b/IPR.md
@@ -8,6 +8,25 @@ 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, May 3, 2022
+
+Red Hat has filed several United States patent applications that might be
+essential to an OASIS Standards Final Deliverable.
+
+The US Patent No. 11237963 titled "SHARED FILESYSTEM METADATA CACHING",
+US Publication No. 20200242263 titled "SECURE AND EFFICIENT ACCESS TO HOST MEMORY FOR GUESTS"
+as well as
+US Publication No. 20200242264 and an unpublished patent application
+titled "DIRECT ACCESS TO HOST MEMORY FOR GUESTS"
+are relevant to sections "Shared Memory Regions" and "File System 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 and amended April 11, 2022
 
 Red Hat has been issued a United States patent that might be, or might become
-- 
2.35.1