Archipelago » qemu

static void kvm_trim_features(uint32_t *features, uint32_t supported,

                              const char *names[])

{

    int i;

    uint32_t mask;

    for (i = 0; i < 32; ++i) {

        mask = 1U << i;

        if ((*features & mask) && !(supported & mask)) {

            printf("Processor feature %s not supported by kvm\n", names[i]);

            *features &= ~mask;

        }

    }

}

    if (kvm_enabled()) {

        kvm_trim_features(&env->cpuid_features,

                          kvm_arch_get_supported_cpuid(env, 1, R_EDX),

                          feature_name);

        kvm_trim_features(&env->cpuid_ext_features,

                          kvm_arch_get_supported_cpuid(env, 1, R_ECX),

                          ext_feature_name);

        kvm_trim_features(&env->cpuid_ext2_features,

                          kvm_arch_get_supported_cpuid(env, 0x80000001, R_EDX),

                          ext2_feature_name);

        kvm_trim_features(&env->cpuid_ext3_features,

                          kvm_arch_get_supported_cpuid(env, 0x80000001, R_ECX),

                          ext3_feature_name);

    }