On Wed, 19 Dec 2018, Ali wrote:
    I don't
know how functional their solutions are and I've never had any
 of
 their products nor I have anything to do with them, but I've had this
 link: <http://www.arstech.com/> in my bookmarks just in case since
 2005.
 I guess if they have been in that business for so long now, they must
 have
 been doing things right. 
 I can tell you for a fact that they do NOT support DMA so a non-starter for
 many things..... 
 
 What kind of DMA though: ISA bus mastering or the Intel 8237 data mover?
Or neither?  Either way, quite disappointing -- it all should be pretty
easy to reproduce with modern circuitry.
 The software side is another matter however -- x86 real-mode OS drivers
should be easy to run virtualised, but other environments are a tad more
difficult to emulate.
  Maciej