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== Scalable I/O Virtualization (SIOV) == SIOV is '''hardware-assisted I/O virtualization''' designed for the hyperscale era, with the potential to support '''thousands of virtualized workloads per server. * SIOV moves the non-performance-critical virtualization and management logic '''off the device and into the virtualization stack'''. It uses a '''scalable identifier''' on the device to address the workloads’ memory. SIOV delivers key benefits vs. prior art: * '''Reduces the per-VM virtualization cost''' on the devices * More efficiently '''supports large numbers of VMs and containers''' * Provides '''more flexibility to the virtualization stack''' for provisioning & composability. '''''Value Proposition''''': Virtualized I/O devices become much '''more configurable and scalable''' while delivering '''near-native performance''' to each VM/container/microservice, with support for confidential computing. == SIOV R1 == Scalable I/O Virtualization, Revision 1 was contributed to OCP by Intel and Microsoft: * [https://opencompute.us9.list-manage.com/track/click?u=c9a5bdc7b1663512a05d5cd7b&id=2610504161&e=229dade178 SIOV R1] == SIOV R2 == Scalable I/O Virtualization, Revision 2 workstream scope: * Ensure specification is compatible across multiple host and device architectures to provide a consistent usability experience. * Ensure specification meets new, emerging, and complementary usages (confidential computing, etc.). * Ensure a viable ecosystem transition path to SIOV Revision 2.0 from existing ecosystem (SR-IOV, SIOV R1). SIOV R2 Overview: * [https://docs.google.com/presentation/d/1BG8JzR3Az2HX70vl345PZ0RfMHx1tEeq/edit?usp=drive_link&ouid=102378729691443933051&rtpof=true&sd=true SIOV R2 Workstream Overview.PPT] == Server Project Updates on SIOV R2 == * June 2023: [https://docs.google.com/presentation/d/1KciHutV8zovug8VYpnv5jk6cPBWBtENz/edit?usp=drive_link&ouid=102378729691443933051&rtpof=true&sd=true SIOV R2 - June'23 Server Project Update.PPT] * March 2024: [https://docs.google.com/presentation/d/1XKH1OsNH9iFstiiB2VZuUZ_-EfmZqqeg/edit?usp=drive_link&ouid=102378729691443933051&rtpof=true&sd=true SIOV R2 - March'24 Server Project Update.PPT]
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