3 files changed, 24 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 10c085e018..4949286c7c 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -17,6 +17,7 @@ config SOC_SPECIFIC_OPTIONS
 	select FSP_COMPRESS_FSP_M_LZMA
 	select FSP_COMPRESS_FSP_S_LZMA
 	select HAVE_CF9_RESET
+	select HAVE_SMI_HANDLER
 	select IDT_IN_EVERY_STAGE
 	select IOAPIC
 	select PLATFORM_USES_FSP2_0
@@ -154,6 +155,19 @@ config CONSOLE_UART_BASE_ADDRESS
 	default 0xfedc9000 if UART_FOR_CONSOLE = 0
 	default 0xfedca000 if UART_FOR_CONSOLE = 1
 
+config SMM_TSEG_SIZE
+	hex
+	default 0x800000 if SMM_TSEG && HAVE_SMI_HANDLER
+	default 0x0
+
+config SMM_RESERVED_SIZE
+	hex
+	default 0x180000
+
+config SMM_MODULE_STACK_SIZE
+	hex
+	default 0x800
+
 menu "PSP Configuration Options"
 
 config AMD_FWM_POSITION_INDEX
diff --git a/src/soc/amd/cezanne/Makefile.inc b/src/soc/amd/cezanne/Makefile.inc
index ce9f66ccc2..3501282b86 100644
--- a/src/soc/amd/cezanne/Makefile.inc
+++ b/src/soc/amd/cezanne/Makefile.inc
@@ -4,6 +4,7 @@ ifeq ($(CONFIG_SOC_AMD_CEZANNE),y)
 
 subdirs-y += ../../../cpu/x86/lapic
 subdirs-y += ../../../cpu/x86/mtrr
+subdirs-y += ../../../cpu/x86/smm
 
 # Beware that all-y also adds the compilation unit to verstage on PSP
 all-y		+= config.c
@@ -34,6 +35,8 @@ ramstage-y	+= reset.c
 ramstage-y	+= root_complex.c
 ramstage-y	+= uart.c
 
+smm-y		+= smihandler.c
+
 CPPFLAGS_common += -I$(src)/soc/amd/cezanne/include
 CPPFLAGS_common += -I$(src)/vendorcode/amd/fsp/cezanne
 
diff --git a/src/soc/amd/cezanne/smihandler.c b/src/soc/amd/cezanne/smihandler.c
new file mode 100644
index 0000000000..2d9e487984
--- /dev/null
+++ b/src/soc/amd/cezanne/smihandler.c
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <cpu/x86/smm.h>
+
+void southbridge_smi_handler(void)
+{
+}