diff --git a/configs/config.portwell_m107.debug_smmstore_oxpcie_em100spi b/configs/config.portwell_m107.debug_smmstore_oxpcie_em100spi
new file mode 100644
index 0000000000..09dfbe35cf
--- /dev/null
+++ b/configs/config.portwell_m107.debug_smmstore_oxpcie_em100spi
@@ -0,0 +1,41 @@
+# Not meant for actual use, but rather to build-test individual options.
+# If keeping this combination of options buildable becomes too hard in
+# the future, then this config can be split into several smaller chunks.
+# Exercises, among other things:
+# + SMMSTORE
+# + OXPCIE support
+# + FSP MP init
+# + EM100Pro SPI console
+# + Debug options
+CONFIG_VENDOR_PORTWELL=y
+CONFIG_CONSOLE_POST=y
+# CONFIG_CONSOLE_SERIAL is not set
+CONFIG_ENABLE_BUILTIN_COM1=y
+CONFIG_ONBOARD_MEM_KINGSTON=y
+CONFIG_USE_INTEL_FSP_MP_INIT=y
+CONFIG_SOC_INTEL_COMMON_BLOCK_SMM_TCO_ENABLE=y
+CONFIG_SOC_INTEL_DEBUG_CONSENT=y
+CONFIG_PCIEXP_HOTPLUG=y
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM_BELOW_4G=y
+CONFIG_SOFTWARE_I2C=y
+CONFIG_SMMSTORE=y
+CONFIG_SPI_FLASH_NO_FAST_READ=y
+CONFIG_DRIVERS_UART_OXPCIE=y
+CONFIG_DRIVERS_GENESYSLOGIC_GL9755=y
+CONFIG_DISPLAY_HOBS=y
+CONFIG_DISPLAY_VBT=y
+CONFIG_DISPLAY_FSP_ENTRY_POINTS=y
+CONFIG_DISPLAY_UPD_DATA=y
+CONFIG_EM100PRO_SPI_CONSOLE=y
+CONFIG_DISPLAY_MTRRS=y
+CONFIG_GDB_STUB=y
+CONFIG_GDB_WAIT=y
+CONFIG_FATAL_ASSERTS=y
+CONFIG_DEBUG_CBFS=y
+CONFIG_DEBUG_SMBUS=y
+CONFIG_DEBUG_SMI=y
+CONFIG_DEBUG_PERIODIC_SMI=y
+CONFIG_DEBUG_MALLOC=y
+CONFIG_DEBUG_CONSOLE_INIT=y
+CONFIG_REALMODE_DEBUG=y
+CONFIG_DEBUG_BOOT_STATE=y