Expose mark_unavailable_features() out of cpu.c so that it can be used
by TDX when features are masked off.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
 target/i386/cpu.c | 4 ++--
 target/i386/cpu.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 8c507ad406e7..e728fb6b9f10 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5479,8 +5479,8 @@ static bool x86_cpu_have_filtered_features(X86CPU *cpu)
     return false;
 }
 
-static void mark_unavailable_features(X86CPU *cpu, FeatureWord w, uint64_t mask,
-                                      const char *verbose_prefix)
+void mark_unavailable_features(X86CPU *cpu, FeatureWord w, uint64_t mask,
+                               const char *verbose_prefix)
 {
     CPUX86State *env = &cpu->env;
     FeatureWordInfo *f = &feature_word_info[w];
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 0cc88c470dfb..e70e7f5ced4b 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2444,6 +2444,8 @@ void cpu_set_apic_feature(CPUX86State *env);
 void host_cpuid(uint32_t function, uint32_t count,
                 uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
 bool cpu_has_x2apic_feature(CPUX86State *env);
+void mark_unavailable_features(X86CPU *cpu, FeatureWord w, uint64_t mask,
+                               const char *verbose_prefix);
 
 static inline bool x86_has_cpuid_0x1f(X86CPU *cpu)
 {
-- 
2.34.1