[Xen-changelog] [xen master] xen/arm: p2m: Allow to flush cache on any RAM region

[patchbot@xxxxxxx]

commit cd851472876ded5b5d10f83a29988f4d2302adea
Author:     Julien Grall <julien.grall@xxxxxxx>
AuthorDate: Wed Feb 21 14:18:44 2018 +0000
Commit:     Julien Grall <julien.grall@xxxxxxx>
CommitDate: Wed Dec 12 16:07:37 2018 +0000

    xen/arm: p2m: Allow to flush cache on any RAM region
    
    Currently, we only allow to flush cache on regions mapped as 
p2m_ram_{rw,ro}.
    
    There are no real problem in cache flushing any RAM regions such as grants
    and foreign mapping. Therefore, relax the check to allow flushing the
    cache on any RAM region.
    
    Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@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 836157292c..4e0ddbf70b 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -1539,7 +1539,7 @@ 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 */
--
generated by git-patchbot for /home/xen/git/xen.git#master

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