[Xen-devel] [PATCH][VTD] fixed another dom0 boot issue on my sys

To:	"xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	[Xen-devel] [PATCH][VTD] fixed another dom0 boot issue on my system
From:	"Kay, Allen M" <allen.m.kay@xxxxxxxxx>
Date:	Tue, 17 Feb 2009 18:40:10 -0800
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Cc:	"Han, Weidong" <weidong.han@xxxxxxxxx>
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Thread-topic:	[PATCH][VTD] fixed another dom0 boot issue on my system

Dom0 boot crashed on my system because dom0 pointer is NULL at this point.

Signed-off-by: Allen Kay allen.m.kay@xxxxxxxxx

===================

diff -r 7fe15a0ee3d8 xen/drivers/passthrough/vtd/x86/vtd.c
--- a/xen/drivers/passthrough/vtd/x86/vtd.c     Tue Feb 17 11:20:18 2009 +0000
+++ b/xen/drivers/passthrough/vtd/x86/vtd.c     Tue Feb 17 16:17:05 2009 -0800
@@ -149,7 +149,8 @@ void iommu_set_dom0_mapping(struct domai
     u64 i, j, tmp;
     extern int xen_in_range(paddr_t start, paddr_t end);

-    BUG_ON(d != dom0);
+    if ( dom0 )
+        BUG_ON(d != dom0);

     for ( i = 0; i < max_page; i++ )
     {

fix_boot.patch
Description: fix_boot.patch

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[Xen-devel] [PATCH][VTD] fixed another dom0 boot issue on my system