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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 04:29:00 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 04:29:00 -0500 |
| commit | 9caafa6c8686e319cf4d5f3757b3972c6c522b7c (patch) | |
| tree | b38979b835b5d22e681b175d0b98a3c7560d9c59 /include/asm-um/ldt-x86_64.h | |
| parent | 51e9f2ff83df6b1c81c5c44f4486c68ed87aa20e (diff) | |
| parent | cac0e8e8bb2e7a086643bdd00c41d900a79bb4fa (diff) | |
Merge branch 'upstream-fixes'
Diffstat (limited to 'include/asm-um/ldt-x86_64.h')
| -rw-r--r-- | include/asm-um/ldt-x86_64.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/asm-um/ldt-x86_64.h b/include/asm-um/ldt-x86_64.h index 175722a91164..96b35aada79a 100644 --- a/include/asm-um/ldt-x86_64.h +++ b/include/asm-um/ldt-x86_64.h @@ -5,8 +5,8 @@ * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com> */ -#ifndef __ASM_LDT_I386_H -#define __ASM_LDT_I386_H +#ifndef __ASM_LDT_X86_64_H +#define __ASM_LDT_X86_64_H #include "asm/semaphore.h" #include "asm/arch/ldt.h" @@ -39,11 +39,13 @@ typedef struct uml_ldt { } uml_ldt_t; /* - * macros stolen from include/asm-i386/desc.h + * macros stolen from include/asm-x86_64/desc.h */ #define LDT_entry_a(info) \ ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) +/* Don't allow setting of the lm bit. It is useless anyways because + * 64bit system calls require __USER_CS. */ #define LDT_entry_b(info) \ (((info)->base_addr & 0xff000000) | \ (((info)->base_addr & 0x00ff0000) >> 16) | \ @@ -54,6 +56,7 @@ typedef struct uml_ldt { ((info)->seg_32bit << 22) | \ ((info)->limit_in_pages << 23) | \ ((info)->useable << 20) | \ + /* ((info)->lm << 21) | */ \ 0x7000) #define LDT_empty(info) (\ @@ -64,6 +67,7 @@ typedef struct uml_ldt { (info)->seg_32bit == 0 && \ (info)->limit_in_pages == 0 && \ (info)->seg_not_present == 1 && \ - (info)->useable == 0 ) + (info)->useable == 0 && \ + (info)->lm == 0) #endif |