From 8ede0bdb63305d3353efd97e9af6210afb05734e Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 19:13:17 -0400 Subject: x86, um: initial part of asm-um move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/um/include/asm/ldt.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 arch/um/include/asm/ldt.h (limited to 'arch/um/include/asm/ldt.h') 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 + */ + +#ifndef __ASM_LDT_H +#define __ASM_LDT_H + +#include +#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 -- cgit v1.2.3