diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-10-27 12:38:02 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-27 12:38:02 +0100 |
commit | 5292ae11babca23c3ff82593630d2d7eebc350a9 (patch) | |
tree | 30a6c8123b35686098f306ea39398b7621f42054 /arch/um/sys-i386/shared/sysdep/host_ldt.h | |
parent | b0f209898f1a177bd503d49215b8c6628797a81c (diff) | |
parent | 0173a3265b228da319ceb9c1ec6a5682fd1b2d92 (diff) |
Merge commit 'v2.6.28-rc2' into x86/uv
Diffstat (limited to 'arch/um/sys-i386/shared/sysdep/host_ldt.h')
-rw-r--r-- | arch/um/sys-i386/shared/sysdep/host_ldt.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/um/sys-i386/shared/sysdep/host_ldt.h b/arch/um/sys-i386/shared/sysdep/host_ldt.h new file mode 100644 index 000000000000..0953cc4df652 --- /dev/null +++ b/arch/um/sys-i386/shared/sysdep/host_ldt.h @@ -0,0 +1,34 @@ +#ifndef __ASM_HOST_LDT_I386_H +#define __ASM_HOST_LDT_I386_H + +#include <asm/ldt.h> + +/* + * macros stolen from include/asm-i386/desc.h + */ +#define LDT_entry_a(info) \ + ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) + +#define LDT_entry_b(info) \ + (((info)->base_addr & 0xff000000) | \ + (((info)->base_addr & 0x00ff0000) >> 16) | \ + ((info)->limit & 0xf0000) | \ + (((info)->read_exec_only ^ 1) << 9) | \ + ((info)->contents << 10) | \ + (((info)->seg_not_present ^ 1) << 15) | \ + ((info)->seg_32bit << 22) | \ + ((info)->limit_in_pages << 23) | \ + ((info)->useable << 20) | \ + 0x7000) + +#define LDT_empty(info) (\ + (info)->base_addr == 0 && \ + (info)->limit == 0 && \ + (info)->contents == 0 && \ + (info)->read_exec_only == 1 && \ + (info)->seg_32bit == 0 && \ + (info)->limit_in_pages == 0 && \ + (info)->seg_not_present == 1 && \ + (info)->useable == 0 ) + +#endif |