[Xen-devel] [PATCH] arm:cpuerrata: Align a virtual address before unmap

[Andrii Anisov <andrii.anisov@xxxxxxxxx>]

From: Andrii Anisov <andrii_anisov@xxxxxxxx>

After changes introduced by 9cc0618 we are able to vmap/vunmap
page aligned addresses only.
So if we add a page address remainder to the mapped virtual address,
we have to mask it out before unmapping.

Signed-off-by: Andrii Anisov <andrii_anisov@xxxxxxxx>
---
 xen/arch/arm/cpuerrata.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/cpuerrata.c b/xen/arch/arm/cpuerrata.c
index 8904939..6f483b2 100644
--- a/xen/arch/arm/cpuerrata.c
+++ b/xen/arch/arm/cpuerrata.c
@@ -75,7 +75,7 @@ static bool copy_hyp_vect_bpi(unsigned int slot, const char 
*hyp_vec_start,
     clean_dcache_va_range(dst_remapped, VECTOR_TABLE_SIZE);
     invalidate_icache();
 
-    vunmap(dst_remapped);
+    vunmap((void *)((vaddr_t)dst_remapped & PAGE_MASK));
 
     return true;
 }
-- 
2.7.4


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