virtualization revision 1.8
1 1.8 nia $NetBSD: virtualization,v 1.8 2025/05/19 18:02:53 nia Exp $ 2 1.1 agc 3 1.1 agc NetBSD Virtualization Roadmap 4 1.1 agc ============================= 5 1.1 agc 6 1.1 agc This is a small roadmap document, and deals with the virtualization 7 1.1 agc side of the operating system. 8 1.1 agc 9 1.5 agc Features that will be in 6.0: 10 1.4 agc 1. NetBSD/usermode 11 1.5 agc 5. Xen domU migration, suspend and resume 12 1.5 agc 13 1.5 agc Features which may make future releases: 14 1.4 agc 2. virtualization jails via secmodel 15 1.4 agc 3. iSCSI booting 16 1.4 agc 4. iSCSI device cloning 17 1.8 nia 5. Arm64 (aarch64) support in NVMM 18 1.1 agc 19 1.1 agc We'll continue to update this roadmap as features and dates get firmed up. 20 1.1 agc 21 1.1 agc 22 1.1 agc Some explanations 23 1.1 agc ================= 24 1.1 agc 25 1.4 agc 1. NetBSD/usermode 26 1.1 agc ------------------ 27 1.1 agc 28 1.7 rillig NetBSD/usermode is a port of NetBSD to a POSIX-compatible user-space, 29 1.4 agc with the intention that it should be possible to run the usermode 30 1.4 agc version of NetBSD on any POSIX-compatible operating system. This code 31 1.5 agc has been committed to the repository by jmcneill, and updated by reinoud 32 1.5 agc and jmcneill. usermode can now boot up to X11, can use a vnc console, 33 1.5 agc and is under active development now. This is most definitely in 6.0. 34 1.1 agc 35 1.5 agc Responsible: jmcneill, reinoud 36 1.1 agc 37 1.4 agc 2. Virtualization Jails via secmodel 38 1.1 agc ------------------------------------ 39 1.1 agc 40 1.1 agc One novel way of creating jails for virtualization is to use a new 41 1.1 agc secmodel (part of the kauth framework), to isolate processes into 42 1.4 agc jail-based virtual machines. This is the basis of a paper given by 43 1.5 agc bad@ at AsiaBSDcon in March 2008. This will not make 6.0 44 1.1 agc 45 1.1 agc Responsible: bad 46 1.1 agc 47 1.4 agc 3. iSCSI booting 48 1.1 agc ---------------- 49 1.1 agc 50 1.1 agc In order to make Xen domains migration-friendly, the storage that the 51 1.1 agc domain uses must be based on some form of network-centric storage, either 52 1.4 agc NFS, or a SAN or IP-SAN. For IP-SANs, iSCSI booting will be used. This 53 1.5 agc is dependent on the in-kernel iSCSI initiator project completing. This will not make 6.0 54 1.1 agc 55 1.1 agc Responsible: agc 56 1.1 agc 57 1.4 agc 4. iSCSI device cloning 58 1.1 agc ----------------------- 59 1.1 agc 60 1.1 agc To minimise the storage requirements for multiple domU booting, using 61 1.1 agc a standard root filesystem or block device for the domU is required, along 62 1.1 agc with some form of copy-on-write mechanism to preserve any modifications 63 1.5 agc that are made. This will not make 6.0 64 1.1 agc 65 1.1 agc Responsible: agc 66 1.1 agc 67 1.4 agc 5. Xen domU migration, suspend and resume 68 1.1 agc ----------------------------------------- 69 1.1 agc 70 1.1 agc Xen domU migration is where a domU domain is moved from one dom0 to 71 1.1 agc another dom0 on the same vlan (to avoid networking problems, the 72 1.5 agc virtual arp address migrates with the domU itself). jym has committed 73 1.5 agc this code, and it will be in 6.0 74 1.1 agc 75 1.4 agc Responsible: jym, bouyer 76 1.1 agc 77 1.8 nia 6. Arm64 (aarch64) support in NVMM 78 1.8 nia ---------------------------------- 79 1.8 nia 80 1.8 nia Initial work was done on porting nvmm(4) to ARMv8.0 by Ryo Shimizu 81 1.8 nia and presented at 2023 AsiaBSDCon. Due to his very sad passing, the 82 1.8 nia port is now without a maintainer. It would be amazing if someone 83 1.8 nia picked up and finished this work. 84 1.8 nia 85 1.8 nia https://github.com/IIJ-NetBSD/netbsd-src/compare/master...ryo:netbsd-src:wip/aarch64_el2 86 1.8 nia 87 1.1 agc Alistair Crooks 88 1.5 agc Sat Jan 14 11:38:50 PST 2012 89
Indexes created Mon Aug 31 00:24:02 UTC 2026