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xen-ia64-devel
Re: [Xen-ia64-devel] [PATCH][RESEND]: clear the key part of cr.itir
Am Donnerstag, 5. Juli 2007 schrieb Xu, Anthony:
> ...
> You mentioned this is in preparation of using protection keys.
> Could you share your idea of virtualizing protection keys?
> And which ia64 OS use protection keys?
As mentioned before we do a PV port of a (not open source) mainframe os to xen
and this os is using protection keys. So protection key support in xen is
necessary.
A short discussion to the protection key support was on the list:
http://lists.xensource.com/archives/html/xen-ia64-devel/2007-04/msg00129.html
I did a first implementation for PV guests with 1 pkr reserved for the
hypervisor. I'll send a RFC and a first patch within the next days.
Thanks.
Dietmar.
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