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Xen 4.19 Released With New 9pfs Backend, Scales Up To 16,383 CPUs


The Xen Project has announced version Xen 4.19 of this open-source hypervisor that is rolling out security improvements, performance and scalability enhancements, and other refinements to this cross-architecture option for open-source virtualization.

The Xen Project has announced version Xen 4.19 of this open-source hypervisor that is rolling out security improvements, performance and scalability enhancements, and other refinements to this cross-architecture option for open-source virtualization. Xen 4.19 incorporates fixes/mitigations for 13 new security advisories, rolls out a new x2APIC driver, faster boot times for Xen PVH thanks to IOMMU changes, and there's a new 9pfs backend for running as a daemon in Dom0. There is also a variety of other enhancements with Xen 4.19 as outlined in today's release announcement on LinuxFoundation.org.

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