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[Xen-devel] question about system call mechanism in xen
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] question about system call mechanism in xen |
| From: | "Zang Hongyong" <zanghongyong@xxxxxxxxxx> |
| Date: | Mon, 17 Mar 2008 22:02:39 +0800 |
| Delivery-date: | Mon, 17 Mar 2008 07:03:22 -0700 |
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hi, I'm interested in system call mechanism in Xen. My understanding (guess) as follows. 1)When user application makes a system call, a "int 80" will occur. 2)Then trap to Ring 0 (Which is hypervisor's location). 3)Then hypervisor redirect it to Guest OS's kernel to do system call operation. 4)Then back to Ring 0 5)back to user appliction Is that true? Where can I get documents about this question in detail? thanks in advance _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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