diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 19:13:17 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-22 22:55:19 -0700 |
| commit | 8ede0bdb63305d3353efd97e9af6210afb05734e (patch) | |
| tree | a9500a323d0a2dcadca43c23b5c20186f6d9b724 /arch/um/include/asm/ldt.h | |
| parent | 8569c9140bd41089f9b6be8837ca421102714a90 (diff) | |
x86, um: initial part of asm-um move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/include/asm/ldt.h')
| -rw-r--r-- | arch/um/include/asm/ldt.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/um/include/asm/ldt.h b/arch/um/include/asm/ldt.h new file mode 100644 index 000000000000..52af512f5e7d --- /dev/null +++ b/arch/um/include/asm/ldt.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2004 Fujitsu Siemens Computers GmbH + * Licensed under the GPL + * + * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com> + */ + +#ifndef __ASM_LDT_H +#define __ASM_LDT_H + +#include <linux/mutex.h> +#include "asm/host_ldt.h" + +extern void ldt_host_info(void); + +#define LDT_PAGES_MAX \ + ((LDT_ENTRIES * LDT_ENTRY_SIZE)/PAGE_SIZE) +#define LDT_ENTRIES_PER_PAGE \ + (PAGE_SIZE/LDT_ENTRY_SIZE) +#define LDT_DIRECT_ENTRIES \ + ((LDT_PAGES_MAX*sizeof(void *))/LDT_ENTRY_SIZE) + +struct ldt_entry { + __u32 a; + __u32 b; +}; + +typedef struct uml_ldt { + int entry_count; + struct mutex lock; + union { + struct ldt_entry * pages[LDT_PAGES_MAX]; + struct ldt_entry entries[LDT_DIRECT_ENTRIES]; + } u; +} uml_ldt_t; + +#endif |