[Xen-devel] [PATCH] xen/arm: p2m: Fix hypercall preemption when domain is relinquish memory mapping

[Julien Grall <julien.grall@xxxxxxxxxx>]

The commit 84f29a9 "xen/arm: Add relinquish_p2m_mapping to remove reference on
every mapped page" doesn't save correctly the next gfn when the hypercall
is preempted.

Instead of storing the next gfn, it store the next mfn. Fix it by using
'addr' instead of 'maddr'.

Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/p2m.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index 3f4ab37..d24a6fc 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -366,7 +366,7 @@ static int create_p2m_entries(struct domain *d,
         {
             if ( hypercall_preempt_check() )
             {
-                p2m->next_gfn_to_relinquish = maddr >> PAGE_SHIFT;
+                p2m->next_gfn_to_relinquish = addr >> PAGE_SHIFT;
                 rc = -EAGAIN;
                 goto out;
             }
-- 
1.7.10.4


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