soc/amd/genoa: Add Kconfig/Makefile to generate PSP image

TESTED: AMD onyx reaches x86 code

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Varshit Pandya <pandyavarshit@gmail.com>
Change-Id: I95d84f93663a80f322fd4d7cdeb35ccfe0ec7d21
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76498
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 120 insertions, 0 deletions

diff --git a/src/soc/amd/genoa/Makefile.inc b/src/soc/amd/genoa/Makefile.inc
index 7523b6824c..de996d670c 100644
--- a/src/soc/amd/genoa/Makefile.inc
+++ b/src/soc/amd/genoa/Makefile.inc
@@ -14,4 +14,124 @@ ifeq ($(call int-gt, $(CONFIG_ROM_SIZE) 0x1000000), 1)
 CBFSTOOL_ADD_CMD_OPTIONS+= --mmap 0:0xff000000:0x1000000
 endif
 
+#
+# PSP Directory Table items
+#
+# Certain ordering requirements apply, however these are ensured by amdfwtool.
+# For more information see "AMD Platform Security Processor BIOS Implementation
+# Guide for Server EPYC Processors" #57299
+#
+
+FIRMWARE_LOCATION=$(shell grep -e FIRMWARE_LOCATION $(CONFIG_AMDFW_CONFIG_FILE) | awk '{print $$2}')
+
+ifeq ($(CONFIG_PSP_DISABLE_POSTCODES),y)
+PSP_SOFTFUSE_BITS += 7
+endif
+
+ifeq ($(CONFIG_PSP_UNLOCK_SECURE_DEBUG),y)
+# Enable secure debug unlock
+PSP_SOFTFUSE_BITS += 0
+OPT_TOKEN_UNLOCK="--token-unlock"
+endif
+
+# Use additional Soft Fuse bits specified in Kconfig
+PSP_SOFTFUSE_BITS += $(call strip_quotes, $(CONFIG_PSP_SOFTFUSE_BITS))
+
+# type = 0x3a
+ifeq ($(CONFIG_HAVE_PSP_WHITELIST_FILE),y)
+PSP_WHITELIST_FILE=$(CONFIG_PSP_WHITELIST_FILE)
+endif
+
+# type = 0x55
+ifeq ($(CONFIG_HAVE_SPL_FILE),y)
+SPL_TABLE_FILE=$(CONFIG_SPL_TABLE_FILE)
+endif
+
+#
+# BIOS Directory Table items - proper ordering is managed by amdfwtool
+#
+
+# type = 0x60
+PSP_APCB_FILES=$(APCB_SOURCES) $(APCB1_SOURCES) $(APCB_SOURCES_RECOVERY) $(APCB_SOURCES_RECOVERY1) $(APCB_SOURCES_RECOVERY2)
+
+# type = 0x61
+PSP_APOB_BASE=$(CONFIG_PSP_APOB_DRAM_ADDRESS)
+
+# type = 0x62
+PSP_BIOSBIN_FILE=$(obj)/amd_biospsp.img
+PSP_ELF_FILE=$(objcbfs)/bootblock.elf
+PSP_BIOSBIN_SIZE=$(shell $(READELF_bootblock) -Wl $(PSP_ELF_FILE) | grep LOAD | awk '{print $$5}')
+PSP_BIOSBIN_DEST=$(shell $(READELF_bootblock) -Wl $(PSP_ELF_FILE) | grep LOAD | awk '{print $$3}')
+
+# Helper function to return a value with given bit set
+# Soft Fuse type = 0xb - See #57299 (NDA) for bit definitions.
+set-bit=$(call int-shift-left, 1 $(call _toint,$1))
+PSP_SOFTFUSE=$(shell A=$(call int-add, \
+		$(foreach bit,$(PSP_SOFTFUSE_BITS),$(call set-bit,$(bit)))); printf "0x%x" $$A)
+
+#
+# Build the arguments to amdfwtool (order is unimportant).  Missing file names
+# result in empty OPT_ variables, i.e. the argument is not passed to amdfwtool.
+#
+
+add_opt_prefix=$(if $(call strip_quotes, $(1)), $(2) $(call strip_quotes, $(1)), )
+
+OPT_PSP_APCB_FILES= $(if $(APCB_SOURCES), --instance 0 --apcb $(APCB_SOURCES)) \
+                    $(if $(APCB_SOURCES1), --instance 1 --apcb $(APCB_SOURCES1)) \
+                    $(if $(APCB_SOURCES_RECOVERY), --instance 10 --apcb $(APCB_SOURCES_RECOVERY)) \
+                    $(if $(APCB_SOURCES_RECOVERY1), --instance 18 --apcb $(APCB_SOURCES_RECOVERY1)) \
+                    $(if $(APCB_SOURCES_RECOVERY2), --instance 19 --apcb $(APCB_SOURCES_RECOVERY2)) \
+                    $(if $(APCB_SOURCES_68), --instance 18 --apcb $(APCB_SOURCES_68))
+
+OPT_APOB_ADDR=$(call add_opt_prefix, $(PSP_APOB_BASE), --apob-base)
+OPT_PSP_BIOSBIN_FILE=$(call add_opt_prefix, $(PSP_BIOSBIN_FILE), --bios-bin)
+OPT_PSP_BIOSBIN_DEST=$(call add_opt_prefix, $(PSP_BIOSBIN_DEST), --bios-bin-dest)
+OPT_PSP_BIOSBIN_SIZE=$(call add_opt_prefix, $(PSP_BIOSBIN_SIZE), --bios-uncomp-size)
+
+OPT_EFS_SPI_READ_MODE=$(call add_opt_prefix, $(CONFIG_EFS_SPI_READ_MODE), --spi-read-mode)
+OPT_EFS_SPI_SPEED=$(call add_opt_prefix, $(CONFIG_EFS_SPI_SPEED), --spi-speed)
+OPT_EFS_SPI_MICRON_FLAG=$(call add_opt_prefix, $(CONFIG_EFS_SPI_MICRON_FLAG), --spi-micron-flag)
+OPT_PSP_SOFTFUSE=$(call add_opt_prefix, $(PSP_SOFTFUSE), --soft-fuse)
+
+OPT_WHITELIST_FILE=$(call add_opt_prefix, $(PSP_WHITELIST_FILE), --whitelist)
+OPT_SPL_TABLE_FILE=$(call add_opt_prefix, $(SPL_TABLE_FILE), --spl-table)
+
+AMDFW_COMMON_ARGS=$(OPT_PSP_APCB_FILES) \
+		$(OPT_APOB_ADDR) \
+		$(OPT_DEBUG_AMDFWTOOL) \
+		$(OPT_PSP_BIOSBIN_FILE) \
+		$(OPT_PSP_BIOSBIN_DEST) \
+		$(OPT_PSP_BIOSBIN_SIZE) \
+		$(OPT_PSP_SOFTFUSE) \
+		--use-pspsecureos \
+		$(OPT_TOKEN_UNLOCK) \
+		$(OPT_WHITELIST_FILE) \
+		$(OPT_SPL_TABLE_FILE) \
+		$(OPT_EFS_SPI_READ_MODE) \
+		$(OPT_EFS_SPI_SPEED) \
+		$(OPT_EFS_SPI_MICRON_FLAG) \
+		--config $(CONFIG_AMDFW_CONFIG_FILE) \
+		--flashsize 0x1000000
+
+$(obj)/amdfw.rom:	$(call strip_quotes, $(PSP_BIOSBIN_FILE)) \
+			$$(PSP_APCB_FILES) \
+			$(DEP_FILES) \
+			$(AMDFWTOOL) \
+			$(obj)/fmap_config.h \
+			$(objcbfs)/bootblock.elf # this target also creates the .map file
+	$(if $(PSP_APCB_FILES), ,$(error APCB_SOURCES is not set))
+	rm -f $@
+	@printf "    AMDFWTOOL  $(subst $(obj)/,,$(@))\n"
+	$(AMDFWTOOL) \
+		$(AMDFW_COMMON_ARGS) \
+		--location $(CONFIG_AMD_FWM_POSITION) \
+		--multilevel \
+		--output $@
+
+$(PSP_BIOSBIN_FILE): $(PSP_ELF_FILE) $(AMDCOMPRESS)
+	rm -f $@
+	@printf "    AMDCOMPRS  $(subst $(obj)/,,$(@))\n"
+	$(AMDCOMPRESS) --infile $(PSP_ELF_FILE) --outfile $@ --compress \
+		--maxsize $(PSP_BIOSBIN_SIZE)
+
 endif