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[Xen-devel] Usermode with Xen?
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Usermode with Xen? |
| From: | Jun Koi <junkoi2004@xxxxxxxxx> |
| Date: | Tue, 27 Jan 2009 00:33:35 +0900 |
| Delivery-date: | Mon, 26 Jan 2009 07:34:02 -0800 |
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Hi, I found the concept of usermode in Xen is a bit confused. With Linux, usermode means ring 3 code. In Xen, we also have function like __copy_from_user(), which does copy data from "usermode" to Xen. But users of Xen is guest VM, so I think usermode here means ring 1 (for paravirtualization) and non-root mode (for VTX/Pacifica). Is that understanding correct? Many thanks, Jun _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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