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[Xen-devel] VT-x and frontend/backend drivers
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| Subject: | [Xen-devel] VT-x and frontend/backend drivers |
| From: | Mark Ryden <markryde@xxxxxxxxx> |
| Date: | Sun, 8 Jan 2006 13:49:10 +0200 |
| Delivery-date: | Sun, 08 Jan 2006 11:55:43 +0000 |
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Hello,
As I saw in this mailing list, there should be some
emulation solution for drivers when using VT-x processors.
See for example :
http://lists.xensource.com/archives/html/xen-devel/2005-12/msg00763.html
My question is this;
As I understand, the VMX support in the new VT-x processors
enables us to prevent Guest OSs from performing
unwanted instructions (HLT , for example). This is
done by using the root and non-root VMX operation.
Thus , we don't use paravirtualization and we
can run unmodified guest.
Is there a possibility or any intention of using the
backend-frontend solution of Xen (maybe with some fixes) when using
VT-x processors ? wouldn't it be much better in terms of
performance than using hardware emulation (based on QEMU maybe)?
Regards,
--MR
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