[PATCH v1 3/3] i386: Mark the 'INTEL_PT' CPUID bit as unmigratable

[Luwei Kang]

After expose all the capabilities of Intel PT to KVM guest, the guest Intel
PT CPUID information may difference with same guest cpu model on differnt
hardware. It will block the live migration. This patch will mark the Intel
PT feature as unmigratable.

Signed-off-by: Luwei Kang <address@hidden>
---
 target/i386/cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 4d9e203..caee8b1 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1024,6 +1024,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
{
             .reg = R_EBX,
         },
         .tcg_features = TCG_7_0_EBX_FEATURES,
+        .unmigratable_flags = CPUID_7_0_EBX_INTEL_PT,
     },
     [FEAT_7_0_ECX] = {
         .type = CPUID_FEATURE_WORD,
-- 
1.8.3.1