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x86-64/realmode: Add instruction suffix

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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>
This commit is contained in:
Jan Beulich 2018-02-19 08:06:14 -07:00 committed by Ingo Molnar
parent f2f18b16c7
commit 8554004a02
1 changed files with 1 additions and 1 deletions
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2
arch/x86/realmode/rm/trampoline_64.S
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@ -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