From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@XenSource.com>
Subject: Re: hypercall execution path?
Date: Thu, 22 Feb 2007 20:46:54 +0000
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On Thu, 2007-02-22 at 15:28 -0500, Bryan D. Payne wrote:
> uint32_t eip = sd->vcpu[0]->arch.guest_context.user_regs.eip;
> gdprintk(XENLOG_WARNING, "eip=0x%x", eip); 

sd is current->domain here so the guest context is saved on the stack
rather than in the domain structure. Therefore you need to use
guest_cpu_user_regs()->eip instead. I should have thought of that
before, sorry.

The context in the vcpu's arch.guest_context will be a stale left over
from the last time the domain was rescheduled, which is why it is doing
a sched_op since it was presumably just waking up from idle.

Ian.