[Xen-devel] [PATCH 2/9] x86/cpuid: Drop the synthetic X86_FEATURE_XEN_IBPB

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

This appears to be a vestigial remnent of an old version of the
XSA-254/Spectre series, and has never been used.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Wei Liu <wei.liu2@xxxxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/include/asm-x86/cpufeatures.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/xen/include/asm-x86/cpufeatures.h 
b/xen/include/asm-x86/cpufeatures.h
index f2a1fa1..0c06274 100644
--- a/xen/include/asm-x86/cpufeatures.h
+++ b/xen/include/asm-x86/cpufeatures.h
@@ -25,7 +25,6 @@ XEN_CPUFEATURE(XEN_SMAP,        (FSCAPINTS+0)*32+11) /* SMAP 
gets used by Xen it
 XEN_CPUFEATURE(LFENCE_DISPATCH, (FSCAPINTS+0)*32+12) /* lfence set as Dispatch 
Serialising */
 XEN_CPUFEATURE(IND_THUNK_LFENCE,(FSCAPINTS+0)*32+13) /* Use IND_THUNK_LFENCE */
 XEN_CPUFEATURE(IND_THUNK_JMP,   (FSCAPINTS+0)*32+14) /* Use IND_THUNK_JMP */
-XEN_CPUFEATURE(XEN_IBPB,        (FSCAPINTS+0)*32+15) /* IBRSB || IBPB */
 XEN_CPUFEATURE(SC_MSR_PV,       (FSCAPINTS+0)*32+16) /* MSR_SPEC_CTRL used by 
Xen for PV */
 XEN_CPUFEATURE(SC_MSR_HVM,      (FSCAPINTS+0)*32+17) /* MSR_SPEC_CTRL used by 
Xen for HVM */
 XEN_CPUFEATURE(SC_RSB_PV,       (FSCAPINTS+0)*32+18) /* RSB overwrite needed 
for PV */
-- 
2.1.4


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