diff --git a/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineAppConfig.aidl b/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineAppConfig.aidl
index a6b228d..cf5398d 100644
--- a/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineAppConfig.aidl
+++ b/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineAppConfig.aidl
@@ -65,15 +65,6 @@
     int numCpus = 1;
 
     /**
-     * Comma-separated list of CPUs or CPU ranges to run vCPUs on (e.g. 0,1-3,5), or
-     * colon-separated list of assignments of vCPU to host CPU assignments (e.g. 0=0:1=1:2=2).
-     * Default is no mask which means a vCPU can run on any host CPU.
-     *
-     * Note: Using a non-null value requires android.permission.USE_CUSTOM_VIRTUAL_MACHINE.
-     */
-    @nullable String cpuAffinity;
-
-    /**
      * List of task profile names to apply for the VM
      *
      * Note: Specifying a value here requires android.permission.USE_CUSTOM_VIRTUAL_MACHINE.
diff --git a/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineRawConfig.aidl b/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineRawConfig.aidl
index d11de03..993bbb0 100644
--- a/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineRawConfig.aidl
+++ b/virtualizationservice/aidl/android/system/virtualizationservice/VirtualMachineRawConfig.aidl
@@ -55,13 +55,6 @@
     int numCpus = 1;
 
     /**
-     * Comma-separated list of CPUs or CPU ranges to run vCPUs on (e.g. 0,1-3,5), or
-     * colon-separated list of assignments of vCPU to host CPU assignments (e.g. 0=0:1=1:2=2).
-     * Default is no mask which means a vCPU can run on any host CPU.
-     */
-    @nullable String cpuAffinity;
-
-    /**
      * A version or range of versions of the virtual platform that this config is compatible with.
      * The format follows SemVer.
      */
diff --git a/virtualizationservice/src/aidl.rs b/virtualizationservice/src/aidl.rs
index dcc2d48..1eca9fe 100644
--- a/virtualizationservice/src/aidl.rs
+++ b/virtualizationservice/src/aidl.rs
@@ -459,7 +459,6 @@
             protected: *is_protected,
             memory_mib: config.memoryMib.try_into().ok().and_then(NonZeroU32::new),
             cpus: config.numCpus.try_into().ok().and_then(NonZeroU32::new),
-            cpu_affinity: config.cpuAffinity.clone(),
             task_profiles: config.taskProfiles.clone(),
             console_fd,
             log_fd,
@@ -598,7 +597,7 @@
 ) -> Result<VirtualMachineRawConfig> {
     // Controlling CPUs is reserved for platform apps only, even when using
     // VirtualMachineAppConfig.
-    if config.cpuAffinity.is_some() || !config.taskProfiles.is_empty() {
+    if !config.taskProfiles.is_empty() {
         check_use_custom_virtual_machine()?
     }
 
@@ -631,7 +630,6 @@
     vm_config.name = config.name.clone();
     vm_config.protectedVm = config.protectedVm;
     vm_config.numCpus = config.numCpus;
-    vm_config.cpuAffinity = config.cpuAffinity.clone();
     vm_config.taskProfiles = config.taskProfiles.clone();
 
     // Microdroid requires an additional payload disk image and the bootconfig partition.
diff --git a/virtualizationservice/src/atom.rs b/virtualizationservice/src/atom.rs
index 01f3e27..3b29d19 100644
--- a/virtualizationservice/src/atom.rs
+++ b/virtualizationservice/src/atom.rs
@@ -66,7 +66,6 @@
     let vm_identifier;
     let config_type;
     let num_cpus;
-    let cpu_affinity;
     let memory_mib;
     let apexes;
     match config {
@@ -74,7 +73,6 @@
             vm_identifier = &config.name;
             config_type = vm_creation_requested::ConfigType::VirtualMachineAppConfig;
             num_cpus = config.numCpus;
-            cpu_affinity = config.cpuAffinity.clone().unwrap_or_default();
             memory_mib = config.memoryMib;
 
             let vm_payload_config = get_vm_payload_config(config);
@@ -93,7 +91,6 @@
             vm_identifier = &config.name;
             config_type = vm_creation_requested::ConfigType::VirtualMachineRawConfig;
             num_cpus = config.numCpus;
-            cpu_affinity = config.cpuAffinity.clone().unwrap_or_default();
             memory_mib = config.memoryMib;
             apexes = String::new();
         }
@@ -108,7 +105,7 @@
         binder_exception_code,
         config_type,
         num_cpus,
-        cpu_affinity: &cpu_affinity,
+        cpu_affinity: "", // deprecated
         memory_mib,
         apexes: &apexes,
         // TODO(seungjaeyoo) Fill information about task_profile
diff --git a/virtualizationservice/src/crosvm.rs b/virtualizationservice/src/crosvm.rs
index c579be2..82a9e78 100644
--- a/virtualizationservice/src/crosvm.rs
+++ b/virtualizationservice/src/crosvm.rs
@@ -80,7 +80,6 @@
     pub protected: bool,
     pub memory_mib: Option<NonZeroU32>,
     pub cpus: Option<NonZeroU32>,
-    pub cpu_affinity: Option<String>,
     pub task_profiles: Vec<String>,
     pub console_fd: Option<File>,
     pub log_fd: Option<File>,
@@ -457,10 +456,6 @@
         command.arg("--cpus").arg(cpus.to_string());
     }
 
-    if let Some(cpu_affinity) = config.cpu_affinity {
-        command.arg("--cpu-affinity").arg(cpu_affinity);
-    }
-
     if !config.task_profiles.is_empty() {
         command.arg("--task-profiles").arg(config.task_profiles.join(","));
     }