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[Xen-changelog] [xen master] x86/nops: Switch to the P6 nops as a compile-time default



commit 5df4fe36c1b0361c12920651eaf3628422197f21
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Wed Dec 20 11:52:15 2017 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Dec 20 13:37:36 2017 +0000

    x86/nops: Switch to the P6 nops as a compile-time default
    
    Along with c/s d7128e735031 switching the runtime choice of best nops, 
switch
    the compile-time default to P6 nops.  This is more efficient on most
    processors for alternative points which add/remove code, rather than switch
    between two different pieces of code.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/include/asm-x86/nops.h | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/xen/include/asm-x86/nops.h b/xen/include/asm-x86/nops.h
index dda9d20..1a46b97 100644
--- a/xen/include/asm-x86/nops.h
+++ b/xen/include/asm-x86/nops.h
@@ -55,15 +55,15 @@
 #define _ASM_MK_NOP(x) ".byte " __stringify(x) "\n"
 #endif
 
-#define ASM_NOP1 _ASM_MK_NOP(K8_NOP1)
-#define ASM_NOP2 _ASM_MK_NOP(K8_NOP2)
-#define ASM_NOP3 _ASM_MK_NOP(K8_NOP3)
-#define ASM_NOP4 _ASM_MK_NOP(K8_NOP4)
-#define ASM_NOP5 _ASM_MK_NOP(K8_NOP5)
-#define ASM_NOP6 _ASM_MK_NOP(K8_NOP6)
-#define ASM_NOP7 _ASM_MK_NOP(K8_NOP7)
-#define ASM_NOP8 _ASM_MK_NOP(K8_NOP8)
-#define ASM_NOP9 _ASM_MK_NOP(K8_NOP9)
+#define ASM_NOP1 _ASM_MK_NOP(P6_NOP1)
+#define ASM_NOP2 _ASM_MK_NOP(P6_NOP2)
+#define ASM_NOP3 _ASM_MK_NOP(P6_NOP3)
+#define ASM_NOP4 _ASM_MK_NOP(P6_NOP4)
+#define ASM_NOP5 _ASM_MK_NOP(P6_NOP5)
+#define ASM_NOP6 _ASM_MK_NOP(P6_NOP6)
+#define ASM_NOP7 _ASM_MK_NOP(P6_NOP7)
+#define ASM_NOP8 _ASM_MK_NOP(P6_NOP8)
+#define ASM_NOP9 _ASM_MK_NOP(P6_NOP9)
 
 #define ASM_NOP_MAX 9
 
--
generated by git-patchbot for /home/xen/git/xen.git#master

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