From: Mihai Carabas <mihai.carabas@oracle.com>
Date: Thu, 21 Mar 2019 14:32:05 +0000 (+0200)
Subject: arch: x86: remove unsued SET_IBPB from spec_ctrl.h
X-Git-Tag: v4.1.12-124.31.3~231
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a43b6e31ee3be27ef045ca8dd763e6a65473fb67;p=users%2Fjedix%2Flinux-maple.git

arch: x86: remove unsued SET_IBPB from spec_ctrl.h

Remove unsued SET_IBPB macro from spec_ctrl.h

Orabug: 29336760

Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Brian Maly <brian.maly@oracle.com>
---

diff --git a/arch/x86/include/asm/spec_ctrl.h b/arch/x86/include/asm/spec_ctrl.h
index b55f9db1e3bd..ecfc95139560 100644
--- a/arch/x86/include/asm/spec_ctrl.h
+++ b/arch/x86/include/asm/spec_ctrl.h
@@ -56,17 +56,6 @@
 	popq %rdx;				\
 	popq %rcx;				\
 	popq %rax
-#define __ASM_SET_IBPB				\
-	pushq %rax;				\
-	pushq %rcx;				\
-	pushq %rdx;				\
-	movl $MSR_IA32_PRED_CMD, %ecx;		\
-	movl $0, %edx;				\
-	movl $FEATURE_SET_IBPB, %eax;		\
-	wrmsr;					\
-	popq %rdx;				\
-	popq %rcx;				\
-	popq %rax
 
 #define __ASM_STUFF_RSB				\
 	call	1f;				\
@@ -198,10 +187,6 @@
 9:
 .endm
 
-.macro SET_IBPB
-ALTERNATIVE "", __stringify(__ASM_SET_IBPB), X86_FEATURE_IBRS
-.endm
-
 .macro STUFF_RSB
 ALTERNATIVE __stringify(__ASM_STUFF_RSB), "", X86_FEATURE_STUFF_RSB
 .endm