[XenPPC] noHV status

[Mark F Mergen <mergen@xxxxxxxxxx>]

The problem state Linux on Xen-PPC has
been mostly running for about a week, but with some instability due to
loose ends in pte flush.  This area of Linux has changed significantly
since the version used for the prototype based on Rhype, so it's taken
a few days to find the right place in Linux to modify.  I've generalized
the noHV pte insert code in Xen as part of this.

As I predicted in my last note to this
list, we've reached the end of progress on simulator.  Everything
I know how to run on the simple ramdisk system runs and seems stable.  Further
progress requires integration with Maria's bringup base on Apple G5 hardware,
which was set aside for other priorities.

As usual, patches for Xen and Linux
are available for interested parties.  For those with access to my
source tree /a/kix/homes/kix/mergen/xen, the Xen patch is in xen-nohv/xen-nohv
and the Linux patch is in linux/linux-2.6.prlp/linux-prlp.  You also
need the two new Xen files arch/powerpc/powerpc64/nohv.c and include/asm-powerpc/nohv.h.
 These mods work against Xen and Linux trees from xensource at the
time of this note.

Mark Mergen
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