This update for xen fixes the following issues:
Security issues fixed:
CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434)
CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373).
Other issues fixed: