[Xen-devel] [RFC 13/16] xen/arm: p2m: Allow to flush cache on any RAM region

[Julien Grall <julien.grall@xxxxxxx>]

Currently, we only allow to flush cache on region mapped as p2m_ram_{rw,ro}.

There are no real problem to flush cache on any RAM region such as grants
and foreign mapping. Therefore, relax the cache to allow flushing the
cache on any RAM region.

Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
---
 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 8537b7bab1..12b459924b 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -1532,7 +1532,7 @@ int p2m_cache_flush_range(struct domain *d, gfn_t start, 
gfn_t end)
         next_gfn = gfn_next_boundary(start, order);
 
         /* Skip hole and non-RAM page */
-        if ( mfn_eq(mfn, INVALID_MFN) || !p2m_is_ram(t) )
+        if ( mfn_eq(mfn, INVALID_MFN) || !p2m_is_any_ram(t) )
             continue;
 
         /* XXX: Implement preemption */
-- 
2.11.0


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