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i386/tdx: Force exposing CPUID 0x1f

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TDX uses CPUID 0x1f to configure TD guest's CPU topology. So set
enable_cpuid_0x1f for TDs.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-35-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Xiaoyao Li
2025-05-28 19:35:54 +02:00
committed by Paolo Bonzini
parent ab8bd85adf
commit 9002494f80
1 changed files with 4 additions and 0 deletions
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target/i386/kvm/tdx.c
+4
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@@ -400,7 +400,11 @@ static int tdx_kvm_type(X86ConfidentialGuest *cg)
static void tdx_cpu_instance_init(X86ConfidentialGuest *cg, CPUState *cpu)
{
X86CPU *x86cpu = X86_CPU(cpu);
object_property_set_bool(OBJECT(cpu), "pmu", false, &error_abort);
x86cpu->enable_cpuid_0x1f = true;
}
static int tdx_validate_attributes(TdxGuest *tdx, Error **errp)