[PATCH v1 5/6] xen: move domain_use_host_layout() to common header

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

domain_use_host_layout() is generic enough to be moved to the
common header xen/domain.h.

Wrap domain_use_host_layout() with "#ifndef domain_use_host_layout"
to allow architectures to override it if needed.

No functional change.

Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
---
 xen/arch/arm/include/asm/domain.h | 14 --------------
 xen/include/xen/domain.h          | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/xen/arch/arm/include/asm/domain.h 
b/xen/arch/arm/include/asm/domain.h
index 758ad807e461..1a04fe658c97 100644
--- a/xen/arch/arm/include/asm/domain.h
+++ b/xen/arch/arm/include/asm/domain.h
@@ -29,20 +29,6 @@ enum domain_type {
 #define is_64bit_domain(d) (0)
 #endif
 
-/*
- * Is the domain using the host memory layout?
- *
- * Direct-mapped domain will always have the RAM mapped with GFN == MFN.
- * To avoid any trouble finding space, it is easier to force using the
- * host memory layout.
- *
- * The hardware domain will use the host layout regardless of
- * direct-mapped because some OS may rely on a specific address ranges
- * for the devices.
- */
-#define domain_use_host_layout(d) (is_domain_direct_mapped(d) || \
-                                   is_hardware_domain(d))
-
 struct vtimer {
     struct vcpu *v;
     int irq;
diff --git a/xen/include/xen/domain.h b/xen/include/xen/domain.h
index 93c0fd00c1d7..40487825ad91 100644
--- a/xen/include/xen/domain.h
+++ b/xen/include/xen/domain.h
@@ -62,6 +62,22 @@ void domid_free(domid_t domid);
 #define is_domain_direct_mapped(d) ((d)->cdf & CDF_directmap)
 #define is_domain_using_staticmem(d) ((d)->cdf & CDF_staticmem)
 
+/*
+ * Is the domain using the host memory layout?
+ *
+ * Direct-mapped domain will always have the RAM mapped with GFN == MFN.
+ * To avoid any trouble finding space, it is easier to force using the
+ * host memory layout.
+ *
+ * The hardware domain will use the host layout regardless of
+ * direct-mapped because some OS may rely on a specific address ranges
+ * for the devices.
+ */
+#ifndef domain_use_host_layout
+# define domain_use_host_layout(d) (is_domain_direct_mapped(d) || \
+                                    is_hardware_domain(d))
+#endif
+
 /*
  * Arch-specifics.
  */
-- 
2.52.0