revised patch for XSA-286 (mitigating performance impact)
x86 PV guest INVLPG-like flushes may leave stale TLB entries [XSA-286, CVE-2020-27674] (#1891092)
x86: Race condition in Xen mapping code [XSA-345] undue deferral of IOMMU TLB flushes [XSA-346] unsafe AMD IOMMU page table updates [XSA-347]
4.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc314.12.3-8.fc31