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https://wiki.xenproject.org/wiki/Xen_Project_Schedulers
Overview. The Xen Project Hypervisor supports several different virtual CPU schedulers, with different properties. The job of an hypervisor's scheduler is to decide, among all the various vCPUs of the various virtual machines, which ones should run on the host's physical CPUs (pCPUs), at any given time.
http://hcl.xenserver.org/cpus/?cpusupport__version=7&vendor=2
27 rows · This page lists the CPU families that are supported with each release of Citrix …
http://hcl.xenserver.org/cpus/
45 rows · This page lists the CPU families that are supported with each release of Citrix …
https://wiki.xenproject.org/wiki/Xen_Project_FAQ_Compatibility
As of Xen 4.3 Xen requires at least x86 64-bit for the hypervisor. Xen used to be supported on IA64 (Itanium) but that support was dropped as of Xen 4.2 and Linux v3.14. On x86 Xen Project requires a "P6" or newer processor (that's any Intel or AMD x86 CPU purchased in …
https://xenproject.org/users/virtualization/
The beginnings of the hypervisor and Xen. The hypervisor was first described in a SOSP 2003 paper called “Xen and the Art of Virtualization.” It was open sourced to allow a global community of developers to contribute and improve the hypervisor. Xen 1.0 was officially released in 2004, followed shortly by Xen 2.0.
https://www.usenix.org/system/files/login/articles/105498-Revelle.pdf
Para-virtualization with XEN Para-virtualization under XEN [4, 8] provides a software service interface for replacing privileged CPU operations . Operating systems must be specifically modified to be aware of the services that the XEN hypervisor provides . To make an OS XEN-aware, the developer has to modify highly complex kernel
https://www.cyberciti.biz/faq/linux-xen-vmware-kvm-intel-vt-amd-v-support/
Jul 19, 2018 · Both Intel and AMD CPU support virtualization technology which allows multiple operating systems to run simultaneously on an x86 server or computer in a safe and efficient manner using hardware virtualization. XEN, KVM, Vmware and other virtualization software can use Intel and AMD hardware virtualization for full virtualization.
https://en.wikipedia.org/wiki/Xen
Xen Project (pronounced / ˈ z ɛ n /) is a type-1 hypervisor, providing services that allow multiple computer operating systems to execute on the same computer hardware concurrently. It was developed by the University of Cambridge and is now being developed by the Linux Foundation with support from Intel.. The University of Cambridge Computer Laboratory developed the first versions of Xen.License: GNU GPL version 2
https://wiki.xen.org/wiki/Xen_4.2_Feature_List
Other Xen Releases. See Xen Release Features for a comparison of the featureset of different Xen releases.. High Level features. Security: Support for Intel Supervisor Mode Execution Protection (SMEP), which prevents the execution of usermode pages by the Xen hypervisor, making many application-to-hypervisor exploits much harder.
The Xen Project is focused on advancing virtualization in a number of different commercial and open source applications, including server virtualization, Infrastructure as a Services (IaaS), desktop virtualization, security applications, embedded and hardware appliances, and automotive/aviation.
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