arm/mem_access: Introduce GV2M_EXEC permission

We extend the current implementation by an additional permission,
GV2M_EXEC, which will be used to describe execute permissions of PTE's
as part of our guest translation table walk implementation.

Signed-off-by: Sergej Proskurin <proskurin@sec.in.tum.de>
Acked-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>

diff --git a/xen/include/asm-arm/page.h b/xen/include/asm-arm/page.h
index cef2f289141a20e20b01e1d5560c6d1b9c6371b2..b8d641bfafdbf9f70e57f44fcbf14b5802c40fa5 100644 (file)
--- a/xen/include/asm-arm/page.h
+++ b/xen/include/asm-arm/page.h
@@ -90,6 +90,7 @@
 /* Flags for get_page_from_gva, gvirt_to_maddr etc */
 #define GV2M_READ  (0u<<0)
 #define GV2M_WRITE (1u<<0)
+#define GV2M_EXEC  (1u<<1)
 
 #ifndef __ASSEMBLY__