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[Xen-devel] readonly grants
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] readonly grants |
| From: | Mohammad Hedayati <hedayati.mo@xxxxxxxxx> |
| Date: | Wed, 26 Oct 2011 20:16:49 +0330 |
| Delivery-date: | Wed, 26 Oct 2011 09:49:20 -0700 |
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After mapping a readonly granted page in a PV guest, the guest can try to change his l1 page table entry, faulting into Xen. Here xen emulates the update operation, but first it must check whether the modification is allowed or not (i.e. the grant is readonly or not).
I'm looking through the code, but I can't find where this checking is done. Can anyone help?! _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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