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Re: [Xen-devel] [PATCH] Paging and memory sharing for HVM guests

To: "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] Paging and memory sharing for HVM guests
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Thu, 17 Dec 2009 16:59:58 +0000
Cc: Patrick Colp <pjcolp@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, Grzegorz Milos <gm281@xxxxxxxxx>, Andrew Peace <Andrew.Peace@xxxxxxxxxxxxx>
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>>> Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> 17.12.09 17:38 >>>
>1). The  "*mfnp |= 0x80000000U;" and "*mfnp |= 0xf0000000U;" should
>    use a #define. Maybe copy over the #defines from the xen tree ?

Did you find any defines in the tools sources for that? The only place I
found this condition being checked at all was in xc_map_foreign_pages(),
where it used hard-coded values. Or are you referring to the
XEN_DOMCTL_PFINFO_* values? I'd say they're being mis-used when
applied to the mfn array used by mmap-batch (including apparent
pre-existing uses).

Jan


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