Revision 0de6bb73
| b/kqemu.c | ||
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| 119 | 119 |
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static void kqemu_update_cpuid(CPUState *env) |
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{
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int critical_features_mask, features; |
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int critical_features_mask, features, ext_features, ext_features_mask;
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uint32_t eax, ebx, ecx, edx; |
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/* the following features are kept identical on the host and |
| ... | ... | |
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CPUID_CMOV | CPUID_CX8 | |
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CPUID_FXSR | CPUID_MMX | CPUID_SSE | |
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CPUID_SSE2 | CPUID_SEP; |
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ext_features_mask = CPUID_EXT_SSE3 | CPUID_EXT_MONITOR; |
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if (!is_cpuid_supported()) {
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features = 0; |
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ext_features = 0; |
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} else {
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cpuid(1, eax, ebx, ecx, edx); |
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features = edx; |
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ext_features = ecx; |
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} |
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#ifdef __x86_64__ |
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/* NOTE: on x86_64 CPUs, SYSENTER is not supported in |
| ... | ... | |
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#endif |
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env->cpuid_features = (env->cpuid_features & ~critical_features_mask) | |
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(features & critical_features_mask); |
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env->cpuid_ext_features = (env->cpuid_ext_features & ~ext_features_mask) | |
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(ext_features & ext_features_mask); |
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/* XXX: we could update more of the target CPUID state so that the |
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non accelerated code sees exactly the same CPU features as the |
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accelerated code */ |
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