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[Xen-devel] (no subject)

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Eads, Joshua Michael (S&T-Student)" <jmer43@xxxxxxx>
  • Date: Fri, 9 Oct 2009 16:47:55 -0500
  • Delivery-date: Fri, 09 Oct 2009 14:48:19 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcpJKih3MQNNIhItRFiyWz2ui0Pdiw==

I have an HVM guest and I am trying to have a usermode program in Dom0 query 
the context (CPU registers, specifically) of the guest.  

I first tried using xc_domain_getcontext() in xenctrl.h but I haven't figured 
out what data structure ctxt_buf is that it returns.  Next, I have tried using 
xc_vcpu_getcontext() in xenctrl.h but so far it always returns -1 for failure.  
For xc_vcpu_getcontext, I am passing in a vcpu number of 1 (I only have a 
single virtual CPU domU running) along with an unallocated vcpu_guest_context_t 

Is this the right direction to pull guest registers, or is there another method 
I need to use to get the HVM guest context?


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