Den 2014-05-27 21:08, skrev Michael Richardson: > Sébastien Frémal <sebastien.fre...@gmail.com> wrote: > > I'm a PhD Student studying virtualization methods. I found an > article > > on UML explaining how it works in TT mode > > (https://www.kernel.org/doc/ols/2001/uml.pdf ). > > > I read that there is now a skas mode fixing security and > performance > > issuses of the TT mode > > (http://user-mode-linux.sourceforge.net/old/skas.html), but I > don't > > find informations on how it works. It seems that the tracing > thread > > You may be able to find some talks/etc. on this in archives. > Jeff Dike might be able to recall which years... > Maybe LinuxSymposium in 1999 and 2000. > > Also, I suggest you read the source code: that means going back to > Linux 2.6. and 2.4 versions.
If you read too old emails, you might be a bit confused, since there has been more than one version of SKAS. (I might write wrong here, so please double check things). Current version is called SKAS0. The previous versions of SKAS required modifications on the host kernel. This modification used to allow a process to have multiple memory maps, and a tracing process could use a syscall to change which memory map a process should have at any given time. With SKAS0, this is no longer required, hence the version was set to zero. Googleling SKAS3 and SKAS0 should give some nice hits. -- Stian Skjelstad ------------------------------------------------------------------------------ The best possible search technologies are now affordable for all companies. Download your FREE open source Enterprise Search Engine today! Our experts will assist you in its installation for $59/mo, no commitment. Test it for FREE on our Cloud platform anytime! http://pubads.g.doubleclick.net/gampad/clk?id=145328191&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
