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Re: [Xen-devel] PATH: start_pfn field in xen_domctl_getmemlist_t

To: Hollis Blanchard <hollisb@xxxxxxxxxx>
Subject: Re: [Xen-devel] PATH: start_pfn field in xen_domctl_getmemlist_t
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Wed, 30 Aug 2006 09:29:23 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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Le Mardi 29 Août 2006 18:20, Hollis Blanchard a écrit :
> On Tue, 2006-08-29 at 12:00 +0200, Tristan Gingold wrote:
> > Because getmemlist needs to be restartable and read P2M, xen/ia64 has
> > always passed start_pfn info trough the hypercall.
> By "restartable" you mean create a continuation?
getmemlist may fail during copy to guest, because of missing TLB entries.  We 
manually restart the call.

> Why does getmemlist
> need to be restartable only on IA64? Also, where does the IA64 code
> create a continuation for it now?
See xc_ia64_get_pfn_list in tools/libxc/ia64/xc_ia64_stubs.c


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