diff --git a/compos/common/timeouts.rs b/compos/common/timeouts.rs
index bdabb1e..d0d107f 100644
--- a/compos/common/timeouts.rs
+++ b/compos/common/timeouts.rs
@@ -18,7 +18,6 @@
 //! virtualization.
 
 use anyhow::Result;
-use rustutils::system_properties;
 use std::time::Duration;
 
 /// Holder for the various timeouts we use.
@@ -30,19 +29,10 @@
     pub vm_max_time_to_ready: Duration,
 }
 
-/// Whether the current platform requires extra time for operations inside a VM.
-pub fn need_extra_time() -> Result<bool> {
-    // Nested virtualization is slow. Check if we are running on vsoc as a proxy for this.
-    if let Some(value) = system_properties::read("ro.build.product")? {
-        Ok(value == "vsoc_x86_64" || value == "vsoc_x86")
-    } else {
-        Ok(false)
-    }
-}
-
 /// Return the timeouts that are appropriate on the current platform.
 pub fn timeouts() -> Result<&'static Timeouts> {
-    if need_extra_time()? {
+    // Nested virtualization is slow.
+    if nested_virt::is_nested_virtualization()? {
         Ok(&EXTENDED_TIMEOUTS)
     } else {
         Ok(&NORMAL_TIMEOUTS)
@@ -50,14 +40,14 @@
 }
 
 /// The timeouts that we use normally.
-pub const NORMAL_TIMEOUTS: Timeouts = Timeouts {
+const NORMAL_TIMEOUTS: Timeouts = Timeouts {
     // Note: the source of truth for these odrefresh timeouts is art/odrefresh/odr_config.h.
     odrefresh_max_execution_time: Duration::from_secs(300),
     vm_max_time_to_ready: Duration::from_secs(15),
 };
 
 /// The timeouts that we use when need_extra_time() returns true.
-pub const EXTENDED_TIMEOUTS: Timeouts = Timeouts {
+const EXTENDED_TIMEOUTS: Timeouts = Timeouts {
     odrefresh_max_execution_time: Duration::from_secs(480),
     vm_max_time_to_ready: Duration::from_secs(120),
 };