From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@eu.citrix.com>
Subject: Re: [PATCH v12 12/14] tools/libxl: explicitly grant
 access to needed I/O-memory ranges
Date: Wed, 3 Sep 2014 12:26:22 +0100
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To: Arianna Avanzini <avanzini.arianna@gmail.com>
Cc: paolo.valente@unimore.it, keir@xen.org, stefano.stabellini@eu.citrix.com, Ian.Jackson@eu.citrix.com, dario.faggioli@citrix.com, tim@xen.org, xen-devel@lists.xen.org, julien.grall@citrix.com, etrudeau@broadcom.com, JBeulich@suse.com, andrew.cooper3@citrix.com, viktor.kleinik@globallogic.com, andrii.tseglytskyi@globallogic.com
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On Sat, 2014-08-30 at 18:29 +0200, Arianna Avanzini wrote:
> +    if (!d_config->b_info.u.hvm.gfx_passthru.val)

You have to use libxl_defbool_val() to read a defbool, val is not a bool
in the normal sense and can't be treated as such.

Ian.