Jeremy Fitzhardinge <[EMAIL PROTECTED]> writes: > I don't have any particularly bright ideas, but there is the other idea > I mentioned. I could pre-initialize the pagetable with the Xen > template, but use unconditional calls to set_pte in pagetable_init. > However, the init-time xen_set_pte simply refuse to set _PAGE_WRITE on a > pte which isn't already writable, thereby protecting the RO state of the > pagetable pages. Once pagetable construction has finished, it would > switch to the real xen_set_pte, which operates as normal. > > This has the downside of making init-time xen_set_pte a little strange, > but it does have the advantage of making the Xen constraints solely the > responsibility of the Xen code, and it is mitigated by the fact that it > is only in effect during pagetable_init. > > Would that work for everyone?
For a short term solution it sounds reasonable. Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
