virtualization revision 1.1
1 $NetBSD: virtualization,v 1.1 2008/03/19 20:12:53 agc Exp $ 2 3 NetBSD Virtualization Roadmap 4 ============================= 5 6 This is a small roadmap document, and deals with the virtualization 7 side of the operating system. 8 9 NetBSD 5.0 will ship with the following virtualization elements in 10 place: 11 12 1. Xen 3 Dom0 [i386/amd64] 13 2. Xen 3 DomU [i386/amd64] 14 3. Xen 3 PAE DomU [i386] 15 16 The following elements and projects are pencilled in for 5.0, but 17 please do not rely on them being there. 18 19 4. NetBSD/usermode 20 5. virtualization jails via secmodel 21 22 The following projects are expected to be included in NetBSD 6.0 23 24 6. iSCSI booting 25 7. iSCSI device cloning 26 8. Xen domU migration, suspend and resume 27 9. Xen balloon driver support 28 29 We expect to branch for the 5.0 release in April or May 2008, which would 30 put a NetBSD 5.0 Release date in Q4 2008. An annual release cycle would 31 thus mean that 6.0 would be branched in April or May 2009. 32 33 Pictorially, this looks like: 34 35 2008 2009 36 Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug 37 |===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===|===| 38 39 | ------- 5.0 --------- | | ------- 6.0 40 branch release branch 41 42 1-3 4,5 6 7 8 9 43 44 We'll continue to update this roadmap as features and dates get firmed up. 45 46 47 Some explanations 48 ================= 49 50 4. NetBSD/usermode 51 ------------------ 52 53 NetBSD/usermode is an port of NetBSD to a POSIX-compatible user-space, with 54 the intention that it should be possible to run the usermode version of 55 NetBSD on any POSIX-compatible operating system. 56 57 Responsible: jmcneill 58 59 5. Virtualization Jails via secmodel 60 ------------------------------------ 61 62 One novel way of creating jails for virtualization is to use a new 63 secmodel (part of the kauth framework), to isolate processes into 64 jail-based virtual machines. This is the basis of a paper to appear 65 in the AsiaBSDcon proceedings in March 2008. 66 67 Responsible: bad 68 69 70 6. iSCSI booting 71 ---------------- 72 73 In order to make Xen domains migration-friendly, the storage that the 74 domain uses must be based on some form of network-centric storage, either 75 NFS, or a SAN or IP-SAN. For IP-SANs, iSCSI booting will be used. 76 77 Responsible: agc 78 79 7. iSCSI device cloning 80 ----------------------- 81 82 To minimise the storage requirements for multiple domU booting, using 83 a standard root filesystem or block device for the domU is required, along 84 with some form of copy-on-write mechanism to preserve any modifications 85 that are made. 86 87 Responsible: agc 88 89 8. Xen domU migration, suspend and resume 90 ----------------------------------------- 91 92 Xen domU migration is where a domU domain is moved from one dom0 to 93 another dom0 on the same vlan (to avoid networking problems, the 94 virtual arp address migrates with the domU itself). 95 96 Responsible: bouyer 97 98 9. Xen balloon driver support 99 ----------------------------- 100 101 The balloon driver allows more memory to be added to a running Xen domU 102 instance; this allows extra memory to be used by the domU for resource 103 peak needs. 104 105 Responsible: bouyer 106 107 108 Alistair Crooks 109 Thu Mar 6 22:36:19 GMT 2008 110
Indexes created Thu Sep 25 02:09:54 GMT 2025