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authorJan Beulich <JBeulich@suse.com>2018-02-19 18:06:14 +0300
committerIngo Molnar <mingo@kernel.org>2018-02-20 11:33:41 +0300
commit8554004a0231dedf44d4d62147fb3d6a6db489aa (patch)
treec232b06102069a2380c119eded54f788078915c7 /arch/x86/realmode
parentf2f18b16c779978ece4a04f304a92ff9ac8fbce5 (diff)
downloadlinux-8554004a0231dedf44d4d62147fb3d6a6db489aa.tar.xz
x86-64/realmode: Add instruction suffix
Omitting suffixes from instructions in AT&T mode is bad practice when operand size cannot be determined by the assembler from register operands, and is likely going to be warned about by upstream GAS in the future (mine does already). Add the single missing suffix here. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5A8AF5F602000078001A9230@prv-mh.provo.novell.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/realmode')
-rw-r--r--arch/x86/realmode/rm/trampoline_64.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index de53bd15df5a..24bb7598774e 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -102,7 +102,7 @@ ENTRY(startup_32)
* don't we'll eventually crash trying to execute encrypted
* instructions.
*/
- bt $TH_FLAGS_SME_ACTIVE_BIT, pa_tr_flags
+ btl $TH_FLAGS_SME_ACTIVE_BIT, pa_tr_flags
jnc .Ldone
movl $MSR_K8_SYSCFG, %ecx
rdmsr