xen: check pre-allocated page tables for conflict with memory map
Check whether the page tables built by the domain builder are at
memory addresses which are in conflict with the target memory map.
If this is the case just panic instead of running into problems
later.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 9bd3f35..3fca9c1 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -802,6 +802,12 @@
BUG();
}
+ /*
+ * Check for a conflict of the hypervisor supplied page tables with
+ * the target E820 map.
+ */
+ xen_pt_check_e820();
+
xen_reserve_xen_mfnlist();
/*