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Adjust min CPUID level to 0x12 when SGX is enabled 

SGX capabilities are enumerated through CPUID_0x12.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
Message-Id: <20210719112136.57018-16-yang.zhong@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-07-19 19:21:18 +08:00 committed by Paolo Bonzini
parent b9edbadefb
commit dca6cffc55
1 changed files with 5 additions and 0 deletions
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5
target/i386/cpu.c
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@ -6154,6 +6154,11 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **errp)
if (sev_enabled()) {
x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000001F);
}
/* SGX requires CPUID[0x12] for EPC enumeration */
if (env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_SGX) {
x86_cpu_adjust_level(cpu, &env->cpuid_min_level, 0x12);
}
}
/* Set cpuid_*level* based on cpuid_min_*level, if not explicitly set */