arm/mpu: Disable map_domain_page for MPU

There is no domheap for ARM_32. All of the RAM is mapped and VA == PA.

Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Reviewed-by: Hari Limaye <hari.limaye@arm.com>
Tested-by: Hari Limaye <hari.limaye@arm.com>
Reviewed-by: Michal Orzel <michal.orzel@amd.com>

xen/arch/arm/Kconfig

@@ -1,7 +1,7 @@
 config ARM_32
 	def_bool y
 	depends on "$(ARCH)" = "arm32"
-	select ARCH_MAP_DOMAIN_PAGE
+	select ARCH_MAP_DOMAIN_PAGE if MMU
 
 config ARM_64
 	def_bool y

xen/arch/arm/mpu/Makefile

@@ -1,6 +1,5 @@
 obj-$(CONFIG_ARM_32) += arm32/
 obj-$(CONFIG_ARM_64) += arm64/
-obj-$(CONFIG_ARM_32) += domain-page.o
 obj-y += mm.o
 obj-y += p2m.o
 obj-y += setup.init.o

xen/arch/arm/mpu/domain-page.c

@@ -1,45 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <xen/bug.h>
-#include <xen/domain_page.h>
-#include <xen/mm-frame.h>
-#include <xen/types.h>
-
-void *map_domain_page_global(mfn_t mfn)
-{
-    BUG_ON("unimplemented");
-    return NULL;
-}
-
-/* Map a page of domheap memory */
-void *map_domain_page(mfn_t mfn)
-{
-    BUG_ON("unimplemented");
-    return NULL;
-}
-
-/* Release a mapping taken with map_domain_page() */
-void unmap_domain_page(const void *ptr)
-{
-    BUG_ON("unimplemented");
-}
-
-mfn_t domain_page_map_to_mfn(const void *ptr)
-{
-    BUG_ON("unimplemented");
-    return INVALID_MFN;
-}
-
-void unmap_domain_page_global(const void *va)
-{
-    BUG_ON("unimplemented");
-}
-
-/*
- * Local variables:
- * mode: C
- * c-file-style: "BSD"
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- */