File xsa471-01.patch of Package xen.39650
# Commit 6a039b050071eba644ab414d76ac5d5fc9e067a5
# Date 2024-09-24 10:49:59 +0100
# Author Andrew Cooper <andrew.cooper3@citrix.com>
# Committer Andrew Cooper <andrew.cooper3@citrix.com>
x86/cpufeature: Reposition cpu_has_lfence_dispatch
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.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/include/asm-x86/cpufeature.h
+++ b/xen/include/asm-x86/cpufeature.h
@@ -144,6 +144,9 @@
/* CPUID level 0x00000007:1.eax */
#define cpu_has_avx512_bf16 boot_cpu_has(X86_FEATURE_AVX512_BF16)
+/* CPUID level 0x80000021.eax */
+#define cpu_has_lfence_dispatch boot_cpu_has(X86_FEATURE_LFENCE_DISPATCH)
+
/* MSR_ARCH_CAPS */
#define cpu_has_rdcl_no boot_cpu_has(X86_FEATURE_RDCL_NO)
#define cpu_has_eibrs boot_cpu_has(X86_FEATURE_EIBRS)
@@ -165,7 +168,6 @@
#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_xen_lbr boot_cpu_has(X86_FEATURE_XEN_LBR)
#define cpu_has_xen_shstk boot_cpu_has(X86_FEATURE_XEN_SHSTK)
#define cpu_has_xen_ibt boot_cpu_has(X86_FEATURE_XEN_IBT)