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From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
=?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
Francesco Lavra <francescolavra.fl@gmail.com>,
Marcelo Tosatti <mtosatti@redhat.com>, qemu-devel@nongnu.org,
=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@linaro.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Xiaoyao Li <xiaoyao.li@intel.com>
Subject: [PATCH v8 53/55] i386/tdx: Make invtsc default on
Date: Tue, 1 Apr 2025 09:02:03 -0400
Message-Id: <20250401130205.2198253-54-xiaoyao.li@intel.com>
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Because it's fixed1 bit that enforced by TDX module.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
---
target/i386/kvm/tdx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
index cd8e96d476b8..8f075ba5a4de 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -740,6 +740,9 @@ static void tdx_cpu_instance_init(X86ConfidentialGuest =
*cg, CPUState *cpu)
=20
object_property_set_bool(OBJECT(cpu), "pmu", false, &error_abort);
=20
+ /* invtsc is fixed1 for TD guest */
+ object_property_set_bool(OBJECT(cpu), "invtsc", true, &error_abort);
+
x86cpu->enable_cpuid_0x1f =3D true;
}
=20
--=20
2.34.1