KVM nSVM work assigns L2 per-vCPU ASIDs to cut TLB flushes
Yosry Ahmed's series drops dynamic ASID allocation on modern AMD CPUs and brings nested SVM closer to VMX VPID handling.
By oops#nested-virtualization
KVM/arm64 nested virt flaw allows guest escape to host
CVE-2026-89775 leaves a freed host page writable to the guest when nested virtualization is enabled, enabling cloud breakout and local root on some setups.
By tarpitKVM nested SVM drops blanket TLB flushes with per-vCPU L2 ASIDs
Yosry Ahmed's series gives each nested guest its own ASID, matching VMX VPID practice and yielding 8-15% gains on recent AMD CPUs.
By kexec