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[Xen-users] Where do System calls go?
| To: | xen list <xen-users@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-users] Where do System calls go? |
| From: | helicoterus-elih@xxxxxxxx |
| Date: | Thu, 30 Apr 2009 14:48:00 +0000 (GMT) |
| Delivery-date: | Thu, 30 Apr 2009 09:32:45 -0700 |
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| Reply-to: | helicoterus-elih@xxxxxxxx |
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I have a doubt about system calls on paravirtualized Xen environment (without virtualization extensions). When a program on a domU invokes a sys call, this arrives to its kernel (on ring 3) and then it is send to VMM (on ring 0) or system call goes directly to VMM? Normally a system call goes to its O.S. libc and then a handler on kernel carries it on. I do not understand what is the problem of sys call. Thank you. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users |
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