[Xen-devel] [PATCH] [VTD] Fix Host Address Width

To:	xen-devel@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-devel] [PATCH] [VTD] Fix Host Address Width
From:	"(अमेय) Ameya (पाळंदे) Palande" <2ameya@xxxxxxxxx>
Date:	Fri, 11 Jul 2008 16:13:55 +1000
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Host Address Width of the platform should be computed as N+1,
where N is the value reported in dmar acpi table.

Cheers,
Ameya.

Signed-off-by: Ameya Palande <2ameya@xxxxxxxxx>

diff -r 27aaff984b36 xen/drivers/passthrough/vtd/dmar.c
--- a/xen/drivers/passthrough/vtd/dmar.c        Thu Jul 10 17:33:23 2008 +0100
+++ b/xen/drivers/passthrough/vtd/dmar.c        Fri Jul 11 16:02:11 2008 +1000
@@ -400,7 +400,7 @@
         return -EINVAL;
     }

-    dmar_host_address_width = dmar->width;
+    dmar_host_address_width = dmar->width + 1;
     dprintk(XENLOG_INFO VTDPREFIX, "Host address width %d\n",
             dmar_host_address_width);

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[Xen-devel] [PATCH] [VTD] Fix Host Address Width