virtualization revision 1.2.12.1
1 1.2.12.1 snj $NetBSD: virtualization,v 1.2.12.1 2009/01/26 05:17:44 snj 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 1.1 agc NetBSD 5.0 will ship with the following virtualization elements in 10 1.1 agc place: 11 1.1 agc 12 1.1 agc 1. Xen 3 Dom0 [i386/amd64] 13 1.1 agc 2. Xen 3 DomU [i386/amd64] 14 1.1 agc 3. Xen 3 PAE DomU [i386] 15 1.1 agc 16 1.2.12.1 snj The following projects are expected to be included in NetBSD 6.0 17 1.1 agc 18 1.1 agc 4. NetBSD/usermode 19 1.1 agc 5. virtualization jails via secmodel 20 1.1 agc 6. iSCSI booting 21 1.1 agc 7. iSCSI device cloning 22 1.1 agc 8. Xen domU migration, suspend and resume 23 1.1 agc 9. Xen balloon driver support 24 1.1 agc 25 1.2.12.1 snj The timescales for 6.0 are not known at the present time, but we would 26 1.2.12.1 snj expect to branch 6.0 late in 2009, with a view to a 6.0 release in 27 1.2.12.1 snj early 2010. 28 1.1 agc 29 1.1 agc We'll continue to update this roadmap as features and dates get firmed up. 30 1.1 agc 31 1.1 agc 32 1.1 agc Some explanations 33 1.1 agc ================= 34 1.1 agc 35 1.1 agc 4. NetBSD/usermode 36 1.1 agc ------------------ 37 1.1 agc 38 1.1 agc NetBSD/usermode is an port of NetBSD to a POSIX-compatible user-space, with 39 1.1 agc the intention that it should be possible to run the usermode version of 40 1.1 agc NetBSD on any POSIX-compatible operating system. 41 1.1 agc 42 1.1 agc Responsible: jmcneill 43 1.1 agc 44 1.1 agc 5. Virtualization Jails via secmodel 45 1.1 agc ------------------------------------ 46 1.1 agc 47 1.1 agc One novel way of creating jails for virtualization is to use a new 48 1.1 agc secmodel (part of the kauth framework), to isolate processes into 49 1.1 agc jail-based virtual machines. This is the basis of a paper to appear 50 1.1 agc in the AsiaBSDcon proceedings in March 2008. 51 1.1 agc 52 1.1 agc Responsible: bad 53 1.1 agc 54 1.1 agc 6. iSCSI booting 55 1.1 agc ---------------- 56 1.1 agc 57 1.1 agc In order to make Xen domains migration-friendly, the storage that the 58 1.1 agc domain uses must be based on some form of network-centric storage, either 59 1.1 agc NFS, or a SAN or IP-SAN. For IP-SANs, iSCSI booting will be used. 60 1.1 agc 61 1.1 agc Responsible: agc 62 1.1 agc 63 1.1 agc 7. iSCSI device cloning 64 1.1 agc ----------------------- 65 1.1 agc 66 1.1 agc To minimise the storage requirements for multiple domU booting, using 67 1.1 agc a standard root filesystem or block device for the domU is required, along 68 1.1 agc with some form of copy-on-write mechanism to preserve any modifications 69 1.1 agc that are made. 70 1.1 agc 71 1.1 agc Responsible: agc 72 1.1 agc 73 1.1 agc 8. Xen domU migration, suspend and resume 74 1.1 agc ----------------------------------------- 75 1.1 agc 76 1.1 agc Xen domU migration is where a domU domain is moved from one dom0 to 77 1.1 agc another dom0 on the same vlan (to avoid networking problems, the 78 1.1 agc virtual arp address migrates with the domU itself). 79 1.1 agc 80 1.1 agc Responsible: bouyer 81 1.1 agc 82 1.1 agc 9. Xen balloon driver support 83 1.1 agc ----------------------------- 84 1.1 agc 85 1.1 agc The balloon driver allows more memory to be added to a running Xen domU 86 1.1 agc instance; this allows extra memory to be used by the domU for resource 87 1.1 agc peak needs. 88 1.1 agc 89 1.2.12.1 snj Responsible: bouyer, cherry? 90 1.1 agc 91 1.1 agc 92 1.1 agc Alistair Crooks 93 1.2.12.1 snj Sun 25 Jan 2009 21:07:42 PST 94
Indexes created Mon Aug 31 00:24:02 UTC 2026