[Xen-devel] How to intercept hypercalls from guest domain in Xen

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] How to intercept hypercalls from guest domain in Xen
From:	Abhinav Srivastava <abhinavs_iitkgp@xxxxxxxxxxx>
Date:	Wed, 15 Nov 2006 15:19:48 +0000 (GMT)
Delivery-date:	Wed, 15 Nov 2006 07:20:00 -0800
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Hi all,

I am currently using Xen 3.0.3-testing version and would like to know the way to to intercept the hypercalls in Xen. I browsed the code and found that in Xen, there is a file entry.S which has defined the hypercall handler, which invokes the hypercall service routine based on the hypercall number supplied in the eax register. I would like to log all the hypercalls (also arguments/parameters) issued from guest OS in domU to provide a logging mechanism in the dom0.

I am currently reading the code but I could not figure it out how to do that easily.

I look forward to hear from you guys.

Thanks,

Abhinav

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[Xen-devel] How to intercept hypercalls from guest domain in Xen