[Xen-users] Re: [Xen-devel] Hypercall tracing in Xen Linux box

["Viswanath Thangamuthu" <viswa_thangam@xxxxxxxxxxx>]

All xm tool command internally invoke hypercalls? 

To find out what are all the hypercalls will be invoked when  i used xm tools ( 
xm list,xm create ....etc),
I just included "printk" message in all the hypercall functions and executed xm 
list, xm create command, but there was no printk message in "/var/log/messages" 
and dmesg output.  Any idea pls?

Thanks in Advance

> ----- Original Message -----
> From: "Viswanath Thangamuthu" <viswa_thangam@xxxxxxxxxxx>
> To: "Jun Koi" <junkoi2004@xxxxxxxxx>
> Subject: Re: [Xen-devel] Hypercall tracing in Xen Linux box
> Date: Wed, 9 Jul 2008 11:01:29 +0230
> 
> 
> > ----- Original Message -----
> > From: "Jun Koi" <junkoi2004@xxxxxxxxx>
> > To: "Viswanath Thangamuthu" <viswa_thangam@xxxxxxxxxxx>
> > Subject: Re: [Xen-devel] Hypercall tracing in Xen Linux box
> > Date: Wed, 9 Jul 2008 16:33:26 +0900
> >
> >
> > On Wed, Jul 9, 2008 at 3:30 PM, Viswanath Thangamuthu
> > <viswa_thangam@xxxxxxxxxxx> wrote:
> > >
> > > Hi,
> > >       Is there a way to find out which hypercall will be 
> > invoked > when  xm tools are used. For example, if we execute "xm 
> > list" > what would be the hypercall will be invoked? . I am 
> > looking for a > Linux tool in the user space which gives the 
> > similar behaviour > and output as DTRACE in solaris  > 
> > http://blogs.sun.com/michaelh/entry/xvm_server_dtrace_fma .
> >
> > Sounds interesting, but what is good about that? I mean why do you
> > want to know which hypercalls are invoked? Debugging or something
> > else?
> 
> Mainly for debugging.
> Is there any xen tool/documentation which provides all these details?.
> 
> >
> > Thanks,
> > Jun
> 
> >
> 
> 
> 
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>



Regards,
Viswa


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