1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 9fbcb9ef92f..d4d6d78dc74 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -636,3 +636,14 @@ void os_abort(void)
 {
 	abort();
 }
+
+int os_mprotect_allow(void *start, size_t len)
+{
+	int page_size = getpagesize();
+
+	/* Move start to the start of a page, len to the end */
+	start = (void *)(((ulong)start) & ~(page_size - 1));
+	len = (len + page_size * 2) & ~(page_size - 1);
+
+	return mprotect(start, len, PROT_READ | PROT_WRITE);
+}