__p2m_lookup should be called with the p2m lock taken. Add an ASSERT in
order to catch wrong caller in debug build.

Signed-off-by: Julien Grall <julien.gr...@citrix.com>
---
 xen/arch/arm/p2m.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index 8dfee24..65efa94 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -160,6 +160,7 @@ static paddr_t __p2m_lookup(struct domain *d, paddr_t 
paddr, p2m_type_t *t)
     p2m_type_t _t;
     unsigned int level, root_table;
 
+    ASSERT(spin_is_locked(&p2m->lock));
     BUILD_BUG_ON(THIRD_MASK != PAGE_MASK);
 
     /* Allow t to be NULL */
-- 
2.1.4


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