diff --git a/hypervisor/src/cpu.rs b/hypervisor/src/cpu.rs
index aaf741129..fa0984c56 100644
--- a/hypervisor/src/cpu.rs
+++ b/hypervisor/src/cpu.rs
@@ -27,7 +27,7 @@ use crate::kvm::{TdxExitDetails, TdxExitStatus};
 use crate::{CpuState, MpState, StandardRegisters};
 
 #[cfg(target_arch = "x86_64")]
-#[derive(Copy, Clone, Default)]
+#[derive(Copy, Clone, Debug, Default, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
 pub enum CpuVendor {
     #[default]
     Unknown,