> > RCS file: /cvsroot/pkgsrc/sysutils/xentools20/patches/patch-as,v
> > 
> > ----------------------------
> > revision 1.1
> > date: 2005/05/23 22:02:04;  author: bouyer;  state: Exp;
> > branches:  1.1.2;
> > Don't mmap /kern/xen/privcmd (this doesn't work any more on current), use
> > MAP_ANON instead. Bump pkgrevision.
> > ----------------------------
> 
> But this is Xen2, not Xen3 ... I think this was in a different context, not
> related to the IOCTL_PRIVCMD_MMAP* ioctls.

they are for IOCTL_PRIVCMD_MMAPBATCH/IOCTL_PRIVCMD_MMAP.

> In xen3, this happens in libxc/xc_netbsd.c. We have to implement a
> xc_map_foreign_range() function, which has to map memory from a remote
> domain over an existing VA range. xc_map_foreign_range() doesn't allocate
> the VA space itself (eventually the same VA range will be remapped several
> times).
> 
> I suspect this is exported to python ...

libxc mmap /proc/xen/privcmd for linux.

YAMAMOTO Takashi