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[Xen-ia64-devel] cpu ops


  • To: <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Dong, Eddie" <eddie.dong@xxxxxxxxx>
  • Date: Mon, 7 Apr 2008 17:25:54 +0800
  • Delivery-date: Mon, 07 Apr 2008 02:32:42 -0700
  • List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
  • Thread-index: AciYkWEppDUyD7AqTvOsRtHE9O/zKA==
  • Thread-topic: cpu ops

In current approach, we have cpu ops like eoi/set_tpr/get_tpr,/set_itm
/set_kr0/set_kr2.../set_kr7 etc.
I think there is another simple alternative is to simply export
setreg/getreg 
for cpu ops.

The benefit of this could be:
        1: Simple in pv_ops I/F
        2: hypervisor neutral. Today we only virtualize around 15 AR/CR
read/write,
        But future it may extends since different Hypervisor may do in
different way.

Do u like to see this one happen?
thanks, eddie

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