release the resources of the process at exit(2)/exit_group(2).

2013-05-28 10:49:33 +09:00
parent 9354c82ee7
commit fa1be382c7
8 changed files with 140 additions and 27 deletions
--- a/arch/x86/kernel/include/arch-memory.h
+++ b/arch/x86/kernel/include/arch-memory.h
@@ -42,6 +42,12 @@

 #define PT_ENTRIES         512

+/* mask of the physical address of the entry to the page table */
+#define	PT_PHYSMASK	(((1UL << 52) - 1) & PAGE_MASK)
+
+#define	PF_PRESENT	0x01	/* entry is valid */
+#define	PF_SIZE		0x80	/* entry points large page */
+
 #define PFL4_PRESENT    0x01
 #define PFL4_WRITABLE   0x02
 #define PFL4_USER       0x04