path: root/arch/x86
diff options
authorAndy Lutomirski <luto@mit.edu>2011-08-25 16:10:33 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-08-25 13:27:14 -0700
commitb4ca46e4e82a0a5976fe5eab85be585d75f8202f (patch)
tree3c10c751f3946b11559b44051d7a889965770fcf /arch/x86
parentcbbfa38fcb95930babc5233cf6927ec430f38abc (diff)
x86-32: Fix boot with CONFIG_X86_INVD_BUG
entry_32.S contained a hardcoded alternative instruction entry, and the format changed in commit 59e97e4d6fbc ("x86: Make alternative instruction pointers relative"). Replace the hardcoded entry with the altinstruction_entry macro. This fixes the 32-bit boot with CONFIG_X86_INVD_BUG=y. Reported-and-tested-by: Arnaud Lacombe <lacombar@gmail.com> Signed-off-by: Andy Lutomirski <luto@mit.edu> Cc: Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86')
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 5c1a91974918..f3f6f5344001 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -54,6 +54,7 @@
#include <asm/ftrace.h>
#include <asm/irq_vectors.h>
#include <asm/cpufeature.h>
+#include <asm/alternative-asm.h>
/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
#include <linux/elf-em.h>
@@ -873,12 +874,7 @@ ENTRY(simd_coprocessor_error)
661: pushl_cfi $do_general_protection
.section .altinstructions,"a"
- .balign 4
- .long 661b
- .long 663f
- .word X86_FEATURE_XMM
- .byte 662b-661b
- .byte 664f-663f
+ altinstruction_entry 661b, 663f, X86_FEATURE_XMM, 662b-661b, 664f-663f
.section .altinstr_replacement,"ax"
663: pushl $do_simd_coprocessor_error

Privacy Policy