vm: address-space: implement copy-on-write address-space duplication

2026-04-01 18:36:25 +01:00
parent c8202c6741
commit a0cab068da
2 changed files with 238 additions and 0 deletions
@@ -105,6 +105,12 @@ extern kern_status_t address_space_release(
 	virt_addr_t base,
 	size_t length);

+/* duplicate all of the mappings in `src` within `dest. the duplication will use
+ * copy-on-write; page data will not be copied until it is written to. */
+extern kern_status_t address_space_duplicate(
+	struct address_space *dest,
+	struct address_space *src);
+
 extern bool address_space_validate_access(
 	struct address_space *region,
 	virt_addr_t base,