[Xen-devel] [PATCH 4/7] xen/arm: cope with modules outside of "visible" RAM

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

This can happen if modules are in a bank which we can't cope with e.g. due to
being non-contiguous.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/setup.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index ab3d9aa..95f22a1 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -380,6 +380,12 @@ static void __init setup_mm(unsigned long dtb_paddr, 
size_t dtb_size)
             e = n = ram_end;
         }
 
+        /* Module in RAM which we cannot see here, due to not handling
+         * non-contiguous memory regions yes
+         */
+        if ( e > ram_end )
+            e = ram_end;
+
         /* Avoid the xenheap */
         if ( s < ((xenheap_mfn_start+xenheap_pages) << PAGE_SHIFT)
              && (xenheap_mfn_start << PAGE_SHIFT) < e )
-- 
1.7.10.4


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