Re: Another plex86 technical thing

[Kevin P. Lawton]

Jens Nerche wrote:
> 
> >The only time we care is before transferring execution to
> >the guest, which is a good time to check and possibly dump
> >the vcode cache and rescan.

> This doesn't work with self modifying code (yes, that's a bit
> braindead to write self mod code, but possible...).

Like I said before, ignore the arguments about the _current_
code page.  That page is protected by the I&D TLB trick.
Since we control the flow of execution to _other_ pages,
then it does work for modified code, since any time before
allowing execution, we would look at the dirty bit before
resuming execution.  Since we always keep a copy of the
actual data page as it should be, we can always start
from scratch.

-Kevin