diff --git a/libc/arch-x86/string/cache.h b/libc/arch-x86/string/cache.h
index d9aff5cad..9d0a563ca 100644
--- a/libc/arch-x86/string/cache.h
+++ b/libc/arch-x86/string/cache.h
@@ -28,8 +28,15 @@ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
+#if defined(__slm__)
+/* Values are optimized for Silvermont */
+#define SHARED_CACHE_SIZE	(1024*1024)			/* Silvermont L2 Cache */
+#define DATA_CACHE_SIZE		(24*1024)			/* Silvermont L1 Data Cache */
+#else
 /* Values are optimized for Atom */
 #define SHARED_CACHE_SIZE	(512*1024)			/* Atom L2 Cache */
 #define DATA_CACHE_SIZE		(24*1024)			/* Atom L1 Data Cache */
+#endif
+
 #define SHARED_CACHE_SIZE_HALF	(SHARED_CACHE_SIZE / 2)
 #define DATA_CACHE_SIZE_HALF	(DATA_CACHE_SIZE / 2)