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boot-programs/sos.h

@@ -58,12 +58,22 @@ extern "C" {
 #define THREAD_FLAG_USER 0x1fffffff
 
 #define CAP_PAGE_MAP 1
-#define CAP_PAGE_SHARE 2
-#define CAP_PAGE_SHARE_COW 3
-#define CAP_PAGE_FORGET 4
-// Not an operation; a capability without this bit cannot write to the page.  */
-#define CAP_PAGE_WRITE 5
+#define CAP_PAGE_COPY 2
+#define CAP_PAGE_MOVE 3
+#define CAP_PAGE_GET_FLAGS 4
+#define CAP_PAGE_SET_FLAGS 5
+/* Not an operation; a capability without this bit cannot write to the page.  */
+#define CAP_PAGE_WRITE 6
 #define CAP_PAGE_ALL_RIGHTS 0x1ff
+/* Flag values for Page and Cappage objects.  */
+	/* A writable page can be written to.  This flag can not be set while the frame is shared.  */
+#define PAGE_FLAG_WRITABLE 1
+	/* When paying, the memory's use is incremented if the page holds a frame.  It cannot be lost.  Frames are lost when the last payer forgets them.  */
+#define PAGE_FLAG_PAYING 2
+	/* Frames can be moved to this Page if they are not shared; copying will always fail.  Sharing a page while this flag is set will fail; moving it will move the flag with it.  A page is guaranteed to be unshared when this flag is set.  Trying to set this flag on a shared page has no effect.  */
+#define PAGE_FLAG_NOSHARE 4
+	/* This is a read-only flag, which is set if the Page is shared.  */
+#define PAGE_FLAG_SHARED 8
 
 #define CAP_CAPABILITY_GET 1
 #define CAP_CAPABILITY_SET_DEATH_NOTIFY 2
@@ -71,7 +81,7 @@ extern "C" {
 
 #define CAPPAGE_SIZE 102
 /* Cappage has page's operations as well.  */
-#define CAP_CAPPAGE_SET 6
+#define CAP_CAPPAGE_SET 7
 #define CAP_CAPPAGE_ALL_RIGHTS 0x1ff
 
 #ifndef __KERNEL