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[PATCH] x86/cpufeature: Reposition cpu_has_{lfence_dispatch,nscb}



LFENCE_DISPATCH used to be a synthetic feature, but was given a real CPUID bit
by AMD.  The define wasn't moved when this was changed.

NSCB has always been a real CPUID bit, and was misplaced when introduced in
the synthetic block alongside LFENCE_DISPATCH.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
 xen/arch/x86/include/asm/cpufeature.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/include/asm/cpufeature.h 
b/xen/arch/x86/include/asm/cpufeature.h
index 3baf9fcdbeeb..3a06b6f297b9 100644
--- a/xen/arch/x86/include/asm/cpufeature.h
+++ b/xen/arch/x86/include/asm/cpufeature.h
@@ -192,6 +192,10 @@ static inline bool boot_cpu_has(unsigned int feat)
 #define cpu_has_cmpccxadd       boot_cpu_has(X86_FEATURE_CMPCCXADD)
 #define cpu_has_avx_ifma        boot_cpu_has(X86_FEATURE_AVX_IFMA)
 
+/* CPUID level 0x80000021.eax */
+#define cpu_has_lfence_dispatch boot_cpu_has(X86_FEATURE_LFENCE_DISPATCH)
+#define cpu_has_nscb            boot_cpu_has(X86_FEATURE_NSCB)
+
 /* CPUID level 0x00000007:1.edx */
 #define cpu_has_avx_vnni_int8   boot_cpu_has(X86_FEATURE_AVX_VNNI_INT8)
 #define cpu_has_avx_ne_convert  boot_cpu_has(X86_FEATURE_AVX_NE_CONVERT)
@@ -219,8 +223,6 @@ static inline bool boot_cpu_has(unsigned int feat)
 #define cpu_has_arch_perfmon    boot_cpu_has(X86_FEATURE_ARCH_PERFMON)
 #define cpu_has_cpuid_faulting  boot_cpu_has(X86_FEATURE_CPUID_FAULTING)
 #define cpu_has_aperfmperf      boot_cpu_has(X86_FEATURE_APERFMPERF)
-#define cpu_has_lfence_dispatch boot_cpu_has(X86_FEATURE_LFENCE_DISPATCH)
-#define cpu_has_nscb            boot_cpu_has(X86_FEATURE_NSCB)
 #define cpu_has_xen_lbr         boot_cpu_has(X86_FEATURE_XEN_LBR)
 #define cpu_has_xen_shstk       (IS_ENABLED(CONFIG_XEN_SHSTK) && \
                                  boot_cpu_has(X86_FEATURE_XEN_SHSTK))

base-commit: e1c8a3dc8aeee26e7d483669ca34fceb8e80d933
-- 
2.39.5




 


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