Re: [PATCH 18/25] [PATCH] turn priviled operations into macros in entry.S

> If you were talking about the general iretq => INTERRUPT_RETURN, then the
> answer is "Yes, they are sufficient". The first version of lguest ran the
> guest kernel in ring 3 (using dual page tables for guest kernel and guest
> user).  The current version I'm pushing runs lguest in ring 1, and the
> entry.S code  worked for both.

How do you implement system calls then? 

-Andi
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