diff --git a/src/cpu/p5/Config b/src/cpu/p5/Config
new file mode 100644
index 0000000000..bda55c403b
--- /dev/null
+++ b/src/cpu/p5/Config
@@ -0,0 +1,3 @@
+option i586
+object cpuid.o
+#object tsc.o
diff --git a/src/cpu/p6/Config b/src/cpu/p6/Config
new file mode 100644
index 0000000000..7bc780afd1
--- /dev/null
+++ b/src/cpu/p6/Config
@@ -0,0 +1,5 @@
+option i686
+option INTEL_PPRO_MTRR
+object microcode.o
+object mpspec.o
+object mtrr.o
diff --git a/src/pc80/Config b/src/pc80/Config
new file mode 100644
index 0000000000..c421d06e45
--- /dev/null
+++ b/src/pc80/Config
@@ -0,0 +1 @@
+object keyboard.o