[PATCH v4 1/8] target/i386: Print CPUID subleaf info for unsupported feature

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Some CPUID leaves have meaningful subleaf index. Print the subleaf info
in feature_word_description for CPUID features.

Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
Reviewed-by: Eduardo Habkost <ehabkost@xxxxxxxxxx>
---
 target/i386/cpu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 1242bd541a53..88e90c1f7b7c 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4745,8 +4745,9 @@ static char *feature_word_description(FeatureWordInfo *f, uint32_t bit)
         {
             const char *reg = get_register_name_32(f->cpuid.reg);
             assert(reg);
-            return g_strdup_printf("CPUID.%02XH:%s",
-                                   f->cpuid.eax, reg);
+            return g_strdup_printf("CPUID.%02XH_%02XH:%s",
+                                   f->cpuid.eax,
+                                   f->cpuid.needs_ecx ? f->cpuid.ecx : 0, reg);
         }
     case MSR_FEATURE_WORD:
         return g_strdup_printf("MSR(%02XH)",
-- 
2.34.1




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