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Re: [Xen-devel] [PATCH 1 of 3] Use memops for mem paging, sharing, and access, instead of domctls

  • To: "Ian Jackson" <Ian.Jackson@xxxxxxxxxxxxx>
  • From: "Andres Lagar-Cavilla" <andres@xxxxxxxxxxxxxxxx>
  • Date: Thu, 9 Feb 2012 12:33:53 -0800
  • Cc: andres@xxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, tim@xxxxxxx, adin@xxxxxxxxxxxxxx
  • Delivery-date: Thu, 09 Feb 2012 20:34:14 +0000
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> Andres Lagar-Cavilla writes ("[Xen-devel] [PATCH 1 of 3] Use memops for
> mem paging, sharing, and access, instead of domctls"):
>> We retain the domctl interface for setting up and tearing down
>> paging/sharing/mem access for a domain. But we migrate all the per page
>> operations to use the memory_op hypercalls (e.g XENMEM_*).
> The tools part of this looks sensible (and pretty formulaic) to me.
> Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> It'll need a hypervisor maintainer to approve the innards.

Both this and the next patch have been acked by Tim Deegan on the
hypervisor side.

However, I have not tested these in isolation. I've always used them
preceded by the "locking p2m series" posted earlier. I would suggest that
you hold off applying this until the locking p2m series gets applied. I
don't think there should be any problems, but I'm being conservative here.


> Ian.

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