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Re: [Xen-users] Where do System calls go?

To: xen list <xen-users@xxxxxxxxxxxxxxxxxxx>
From: helicoterus-elih@xxxxxxxx
Date: Fri, 1 May 2009 11:53:49 +0000 (GMT)
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List-id: Xen user discussion <xen-users.lists.xensource.com>

Amit Dang wrote:
>> 
>>
>> I have a doubt about system calls on paravirtualized Xen environment
>> (without virtualization extensions).
[...]
> * In case of a Para virtualized Xen environment OS (kernel) runs at ring
> 1 and applications (user space) runs at ring 3 (Intel x86 only not true
> for AMD).
> * When ever a system call is invoked via interrupt or sysenter control
> gets
[...]
> 
> Dang

Thanks, and what about hvm domU? How do the system calls work?

H.E.





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