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[Xen-users] A fundamental doubt.
| To: | xen-users@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-users] A fundamental doubt. |
| From: | "Anuj Bhatt" <anuj.bhatt@xxxxxxxxx> |
| Date: | Thu, 5 Apr 2007 18:23:12 +0530 |
| Delivery-date: | Thu, 05 Apr 2007 05:52:07 -0700 |
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Hi, I read an article on the ring architecture of Xen which is based on the protection ring architecture of x86. It said that the host kernel as well as the guest xenified kernels run in ring1 and xen on ring0. Since xen is in ring0 and hypercalls are basically calls made from user space to kernel space(in this case ring1) how does one block calls from reaching to dom0 from an event that has occurred from domU? Is this done by the event channel which is monitored? Have I got my facts right? Thanks a ton. Regards, Anuj Bhatt. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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