<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>I came across another article regarding the history of VAX virtualization project at DEC.<br>Surprisingly, the projects dates back to 1981 and ran till 1990.<br>The goal was to achieve A1 security level certification.<br><br>Steve Lipner et al., "Lessons from VAX/SVS for High Assurance VM Systems"<br><br><span><a target="_blank" href="http://dx.doi.org/10.1109/MSP.2012.87">http://dx.doi.org/10.1109/MSP.2012.87</a></span><br><span><a target="_blank" href="http://www.cse.psu.edu/~tjaeger/cse543-f12/docs/SP_SPSI-2012-03-0042">http://www.cse.psu.edu/~tjaeger/cse543-f12/docs/SP_SPSI-2012-03-0042</a> R1_Zurko.pdf</span><br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br><div style="font-family:arial, helvetica, sans-serif;font-size:13px"><font face="Tahoma"
size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Sergey Oboguev <oboguev@yahoo.com><br><b><span style="font-weight: bold;">To:</span></b> simh@trailing-edge.com<br><b><span style="font-weight: bold;">Sent:</span></b> Mon, July 9, 2012 6:23:41 AM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [Simh] Virtual VAXen<br></font><br>
> Ah yes, the VVAX option... another attempted graft on the VAX architecture <br>>tree. Unlike vectors, it never got as far as a real implementation.<br><br>According to VVAX / VAX Security Kernel developers, while it was never released <br>externally as a product, there was internal proof-of-concept implementation on <br>11/730 and production quality implementation on 8800, the latter field-tested in <br>1989 at a number of external customers' sites.<br><br><span><a target="_blank" href="http://dx.doi.org/10.1109/32.106971">http://dx.doi.org/10.1109/32.106971</a></span><br><span><a target="_blank" href="http://www.cse.psu.edu/~tjaeger/cse543-f06/papers/vax_vmm.pdf">http://www.cse.psu.edu/~tjaeger/cse543-f06/papers/vax_vmm.pdf</a></span><br><br><span><a target="_blank" href="http://dx.doi.org/10.1109/RISP.1990.63834">http://dx.doi.org/10.1109/RISP.1990.63834</a></span><br><span><a target="_blank"
href="http://www.scs.stanford.edu/nyu/02sp/sched/vmm.pdf">http://www.scs.stanford.edu/nyu/02sp/sched/vmm.pdf</a></span><br><br>And here is somewhat more detailed technical description:<br><span><a target="_blank" href="http://dx.doi.org/10.1109/ISCA.1991.1021630">http://dx.doi.org/10.1109/ISCA.1991.1021630</a></span><br><span><a target="_blank" href="http://mprc.pku.cn/mentors/training/ISCAreading/1991/p380-hall/p380-hall.pdf">http://mprc.pku.cn/mentors/training/ISCAreading/1991/p380-hall/p380-hall.pdf</a></span><br></div></div>
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