[Xen-ia64-devel] Re: [PATCH 13/28] ia64/xen: introduce xen hypercall routines necessary for domU.

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Thu, Feb 21, 2008 at 03:47:10PM -0800, Jeremy Fitzhardinge wrote:
> yamahata@xxxxxxxxxxxxx wrote:
> >+static inline unsigned long
> >+HYPERVISOR_machtophys(unsigned long mfn)
> >+{
> >+    unsigned long ret = mfn;
> >+    if (is_running_on_xen())
> >  
> 
> Do you often call hypercalls when not booting under Xen?  It seems to me 
> this check should have already been done at a higher layer, and it 
> needn't be repeated here.

IA64 pv_ops frame work doesn't exist yet so that xen code does
in order to boot on both native and xen for now.
I expect those check will be eliminated during developing ia64 pv_ops.

-- 
yamahata

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