]> xenbits.xensource.com Git - people/aperard/xen-unstable.git/commitdiff
x86/cpufeature: Reposition cpu_has_{lfence_dispatch,nscb}
authorAndrew Cooper <andrew.cooper3@citrix.com>
Tue, 10 Sep 2024 19:59:37 +0000 (20:59 +0100)
committerAndrew Cooper <andrew.cooper3@citrix.com>
Tue, 24 Sep 2024 09:49:59 +0000 (10:49 +0100)
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@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
xen/arch/x86/include/asm/cpufeature.h

index 3baf9fcdbeebf1130dc6cce718433c02ba195d1a..3a06b6f297b9d482990fa65f3099638793bcbde6 100644 (file)
@@ -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))