xen/arm: Implement ioremap.

Common code uses this, it expects an uncached mapping.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Julien Grall <julien.grall@linaro.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index 69c157a05c..4521c8d4f1 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -694,6 +694,11 @@ void *ioremap_attr(paddr_t pa, size_t len, unsigned int attributes)
     return (__vmap(&pfn, nr, 1, 1, attributes) + offs);
 }
 
+void *ioremap(paddr_t pa, size_t len)
+{
+    return ioremap_attr(pa, len, PAGE_HYPERVISOR_NOCACHE);
+}
+
 static int create_xen_table(lpae_t *entry)
 {
     void *p;