[Xen-devel] [PATCH v8 8/8] xen/arm: map reserved-memory regions as normal memory in dom0

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

reserved-memory regions should be mapped as normal memory. At the
moment, they get remapped as device memory because Xen doesn't know
better. Add an explicit check for it.

Signed-off-by: Stefano Stabellini <stefanos@xxxxxxxxxx>
---
 xen/arch/arm/domain_build.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c
index f552154..c7df4cf 100644
--- a/xen/arch/arm/domain_build.c
+++ b/xen/arch/arm/domain_build.c
@@ -1307,6 +1307,13 @@ static int __init handle_node(struct domain *d, struct 
kernel_info *kinfo,
                "WARNING: Path %s is reserved, skip the node as we may re-use 
the path.\n",
                path);
 
+    /*
+     * reserved-memory ranges should be mapped as normal memory in the
+     * p2m.
+     */
+    if ( !strcmp(dt_node_name(node), "reserved-memory") )
+        p2mt = p2m_ram_rw;
+
     res = handle_device(d, node, p2mt);
     if ( res)
         return res;
-- 
1.9.1


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