Re: [Xen-devel] Re: System Call Interception

[Adrian Chadd <adrian@xxxxxxxxxxxxxxx>]

> >On i386 at least, syscalls are delivered directly to the guest (they 
> >aren't intercepted by Xen).

Also note that not all syscalls on all OSes are implemented the same
way - eg stuff like getpid()/gettimeofday()  might end up mapping to
some data hiding away in a page mapped to all processes. I'm not sure
Xen would even get involved in that (besides, perhaps, being involved
in page mapping?)

I forget which OSes I've seen do this by using dynamic linking magic;
solaris maybe?



Adrian


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