[PATCH v6 57/60] i386/tdx: Make invtsc default on

Xiaoyao Li
2024-11-05T06:40:26Z

Because it's fixed1 bit that enforced by TDX module.

Signed-off-by: Xiaoyao Li <xiaoyao.li@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 05475edf72bd..4cb1f4ac3479 100644
--- a/target/i386/kvm/tdx.c
+++ b/target/i386/kvm/tdx.c
@@ -430,6 +430,9 @@ static void tdx_cpu_instance_init(X86ConfidentialGuest *cg, CPUState *cpu)

object_property_set_bool(OBJECT(cpu), "pmu", false, &error_abort);

+ /* invtsc is fixed1 for TD guest */
+ object_property_set_bool(OBJECT(cpu), "invtsc", true, &error_abort);
+
x86cpu->enable_cpuid_0x1f = true;
}

--
2.34.1