This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-x86_64 / mach-xen / asm / e820.h

diff --git a/include/asm-x86_64/mach-xen/asm/e820.h b/include/asm-x86_64/mach-xen/asm/e820.h
new file mode 100644 (file)
index 0000000..6371cb2
--- /dev/null
+++ b/include/asm-x86_64/mach-xen/asm/e820.h
@@ -0,0 +1,64 @@
+/*
+ * structures and definitions for the int 15, ax=e820 memory map
+ * scheme.
+ *
+ * In a nutshell, setup.S populates a scratch table in the
+ * empty_zero_block that contains a list of usable address/size
+ * duples.  setup.c, this information is transferred into the e820map,
+ * and in init.c/numa.c, that new information is used to mark pages
+ * reserved or not.
+ */
+#ifndef __E820_HEADER
+#define __E820_HEADER
+
+#include <linux/mmzone.h>
+
+#define E820MAP        0x2d0           /* our map */
+#define E820MAX        128             /* number of entries in E820MAP */
+#define E820NR 0x1e8           /* # entries in E820MAP */
+
+#define E820_RAM       1
+#define E820_RESERVED  2
+#define E820_ACPI      3 /* usable as RAM once ACPI tables have been read */
+#define E820_NVS       4
+
+#define HIGH_MEMORY    (1024*1024)
+
+#define LOWMEMSIZE()   (0x9f000)
+
+#ifndef __ASSEMBLY__
+struct e820entry {
+       u64 addr;       /* start of memory segment */
+       u64 size;       /* size of memory segment */
+       u32 type;       /* type of memory segment */
+} __attribute__((packed));
+
+struct e820map {
+    int nr_map;
+       struct e820entry map[E820MAX];
+};
+
+extern unsigned long find_e820_area(unsigned long start, unsigned long end, 
+                                   unsigned size);
+extern void add_memory_region(unsigned long start, unsigned long size, 
+                             int type);
+extern void setup_memory_region(void);
+extern void contig_e820_setup(void); 
+extern unsigned long e820_end_of_ram(void);
+extern void e820_reserve_resources(struct e820entry *e820, int nr_map);
+extern void e820_print_map(char *who);
+extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type);
+extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type);
+
+extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end);
+extern void e820_setup_gap(struct e820entry *e820, int nr_map);
+extern unsigned long e820_hole_size(unsigned long start_pfn,
+                                   unsigned long end_pfn);
+
+extern void __init parse_memopt(char *p, char **end);
+extern void __init parse_memmapopt(char *p, char **end);
+
+extern struct e820map e820;
+#endif/*!__ASSEMBLY__*/
+
+#endif/*__E820_HEADER*/