patch-2.3.16 linux/include/asm-i386/e820.h

• Lines: 36
• Date: Mon Aug 30 10:47:02 1999
• Orig file: v2.3.15/linux/include/asm-i386/e820.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.15/linux/include/asm-i386/e820.h linux/include/asm-i386/e820.h
@@ -0,0 +1,35 @@
+/*
+ * structures and definitions for the int 15, ax=e820 memory map
+ * scheme.
+ *
+ * In a nutshell, arch/i386/boot/setup.S populates a scratch table
+ * in the empty_zero_block that contains a list of usable address/size
+ * duples.   In arch/i386/kernel/setup.c, this information is
+ * transferred into the e820map, and in arch/i386/mm/init.c, that
+ * new information is used to mark pages reserved or not.
+ *
+ */
+#ifndef __E820_HEADER
+#define __E820_HEADER
+
+#define E820MAP	0x2d0		/* our map */
+#define E820MAX	32		/* number of entries in E820MAP */
+#define E820NR	0x1e8		/* # entries in E820MAP */
+
+#define HIGH_MEMORY	(1024*1024)
+
+#ifndef __ASSEMBLY__
+
+struct e820map {
+    int nr_map;
+    struct {
+	long long addr;		/* start of memory segment */
+	long long size;		/* size of memory segment */
+	long type;		/* type of memory segment */
+    } map[E820MAX];
+};
+
+extern struct e820map e820;
+#endif/*!__ASSEMBLY__*/
+
+#endif/*__E820_HEADER*/