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Re: [Xen-devel] Read-only locking of Guest Memory pages

  • To: Srujan Kotikela <ksrujandas@xxxxxxxxx>
  • From: George Dunlap <dunlapg@xxxxxxxxx>
  • Date: Wed, 15 Jun 2011 10:34:36 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Tim Deegan <Tim.Deegan@xxxxxxxxxx>
  • Delivery-date: Wed, 15 Jun 2011 02:35:27 -0700
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On Tue, Jun 14, 2011 at 5:38 PM, Srujan Kotikela <ksrujandas@xxxxxxxxx> wrote:
> Hi Tim,
>
> I am trying to implement a secure architecture where a process' (selected)
> memory pages have to be set as read-only. The process will send the virtual
> address of pages required (through a custom hypercall) to be set read-only.
> I need to compute the physical address of the pages and set them read-only.

The process can already ask the operating system to do that.  Why does
the hypervisor need to be involved?

 -George

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