[PATCH 4.15 088/146] x86-64/realmode: Add instruction suffix

[Greg Kroah-Hartman]

4.15-stable review patch.  If anyone has any objections, please let me know.

--

From: Jan Beulich 

commit 8554004a0231dedf44d4d62147fb3d6a6db489aa upstream.

Omitting suffixes from instructions in AT 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 
Acked-by: Thomas Gleixner 
Cc: Andy Lutomirski 
Cc: Borislav Petkov 
Cc: Brian Gerst 
Cc: Denys Vlasenko 
Cc: H. Peter Anvin 
Cc: Josh Poimboeuf 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/5a8af5f60278001a9...@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman 

---
 arch/x86/realmode/rm/trampoline_64.S |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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

[PATCH 4.15 088/146] x86-64/realmode: Add instruction suffix

[Greg Kroah-Hartman]

4.15-stable review patch.  If anyone has any objections, please let me know.

--

From: Jan Beulich 

commit 8554004a0231dedf44d4d62147fb3d6a6db489aa upstream.

Omitting suffixes from instructions in AT 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 
Acked-by: Thomas Gleixner 
Cc: Andy Lutomirski 
Cc: Borislav Petkov 
Cc: Brian Gerst 
Cc: Denys Vlasenko 
Cc: H. Peter Anvin 
Cc: Josh Poimboeuf 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/5a8af5f60278001a9...@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar 
Signed-off-by: Greg Kroah-Hartman 

---
 arch/x86/realmode/rm/trampoline_64.S |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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