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Diffstat (limited to 'target/i386/cpu.c')
| -rw-r--r-- | target/i386/cpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 52a77a7..4e4fe8f 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -849,6 +849,12 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { }, .cpuid_eax = 0x80000001, .cpuid_reg = R_ECX, .tcg_features = TCG_EXT3_FEATURES, + /* + * TOPOEXT is always allowed but can't be enabled blindly by + * "-cpu host", as it requires consistent cache topology info + * to be provided so it doesn't confuse guests. + */ + .no_autoenable_flags = CPUID_EXT3_TOPOEXT, }, [FEAT_C000_0001_EDX] = { .feat_names = { |