diff options
Diffstat (limited to 'arch/x86/lib/copy_user_nocache_64.S')
| -rw-r--r-- | arch/x86/lib/copy_user_nocache_64.S | 53 |
1 files changed, 26 insertions, 27 deletions
diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S index cb0c112386f..6a4f43c2d9e 100644 --- a/arch/x86/lib/copy_user_nocache_64.S +++ b/arch/x86/lib/copy_user_nocache_64.S @@ -14,6 +14,8 @@ #include <asm/current.h> #include <asm/asm-offsets.h> #include <asm/thread_info.h> +#include <asm/asm.h> +#include <asm/smap.h> .macro ALIGN_DESTINATION #ifdef FIX_ALIGNMENT @@ -36,11 +38,8 @@ jmp copy_user_handle_tail .previous - .section __ex_table,"a" - .align 8 - .quad 100b,103b - .quad 101b,103b - .previous + _ASM_EXTABLE(100b,103b) + _ASM_EXTABLE(101b,103b) #endif .endm @@ -50,6 +49,7 @@ */ ENTRY(__copy_user_nocache) CFI_STARTPROC + ASM_STAC cmpl $8,%edx jb 20f /* less then 8 bytes, go to byte copy loop */ ALIGN_DESTINATION @@ -97,6 +97,7 @@ ENTRY(__copy_user_nocache) decl %ecx jnz 21b 23: xorl %eax,%eax + ASM_CLAC sfence ret @@ -111,27 +112,25 @@ ENTRY(__copy_user_nocache) jmp copy_user_handle_tail .previous - .section __ex_table,"a" - .quad 1b,30b - .quad 2b,30b - .quad 3b,30b - .quad 4b,30b - .quad 5b,30b - .quad 6b,30b - .quad 7b,30b - .quad 8b,30b - .quad 9b,30b - .quad 10b,30b - .quad 11b,30b - .quad 12b,30b - .quad 13b,30b - .quad 14b,30b - .quad 15b,30b - .quad 16b,30b - .quad 18b,40b - .quad 19b,40b - .quad 21b,50b - .quad 22b,50b - .previous + _ASM_EXTABLE(1b,30b) + _ASM_EXTABLE(2b,30b) + _ASM_EXTABLE(3b,30b) + _ASM_EXTABLE(4b,30b) + _ASM_EXTABLE(5b,30b) + _ASM_EXTABLE(6b,30b) + _ASM_EXTABLE(7b,30b) + _ASM_EXTABLE(8b,30b) + _ASM_EXTABLE(9b,30b) + _ASM_EXTABLE(10b,30b) + _ASM_EXTABLE(11b,30b) + _ASM_EXTABLE(12b,30b) + _ASM_EXTABLE(13b,30b) + _ASM_EXTABLE(14b,30b) + _ASM_EXTABLE(15b,30b) + _ASM_EXTABLE(16b,30b) + _ASM_EXTABLE(18b,40b) + _ASM_EXTABLE(19b,40b) + _ASM_EXTABLE(21b,50b) + _ASM_EXTABLE(22b,50b) CFI_ENDPROC ENDPROC(__copy_user_nocache) |