Add U-Boot x86_64 payload

Currently seems to stall when booted from the GRUB
payload, but works when booted from the SeaBIOS menu.

I also tested it as a standalone payload and it seems
to boot. Will test on hardware next, and start adding
it to more mainboards.

Signed-off-by: Leah Rowe <leah@libreboot.org>

3 files changed, 1012 insertions, 0 deletions

diff --git a/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_corebootfb b/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_corebootfb
new file mode 100644
index 00000000..951bd326
--- /dev/null
+++ b/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_corebootfb
@@ -0,0 +1,505 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# coreboot configuration
+#
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+CONFIG_CBFS_PREFIX="fallback"
+CONFIG_COMPILER_GCC=y
+# CONFIG_COMPILER_LLVM_CLANG is not set
+CONFIG_ARCH_SUPPORTS_CLANG=y
+# CONFIG_ANY_TOOLCHAIN is not set
+# CONFIG_CCACHE is not set
+# CONFIG_IWYU is not set
+# CONFIG_FMD_GENPARSER is not set
+# CONFIG_UTIL_GENPARSER is not set
+# CONFIG_OPTION_BACKEND_NONE is not set
+CONFIG_USE_OPTION_TABLE=y
+CONFIG_STATIC_OPTION_TABLE=y
+CONFIG_COMPRESS_RAMSTAGE_LZMA=y
+# CONFIG_COMPRESS_RAMSTAGE_LZ4 is not set
+CONFIG_SEPARATE_ROMSTAGE=y
+CONFIG_INCLUDE_CONFIG_FILE=y
+CONFIG_COLLECT_TIMESTAMPS=y
+# CONFIG_TIMESTAMPS_ON_CONSOLE is not set
+CONFIG_USE_BLOBS=y
+# CONFIG_USE_AMD_BLOBS is not set
+# CONFIG_USE_QC_BLOBS is not set
+# CONFIG_COVERAGE is not set
+# CONFIG_UBSAN is not set
+CONFIG_HAVE_ASAN_IN_ROMSTAGE=y
+CONFIG_HAVE_ASAN_IN_RAMSTAGE=y
+# CONFIG_ASAN is not set
+CONFIG_NO_STAGE_CACHE=y
+# CONFIG_CBMEM_STAGE_CACHE is not set
+# CONFIG_UPDATE_IMAGE is not set
+# CONFIG_BOOTSPLASH_IMAGE is not set
+
+#
+# Software Bill Of Materials (SBOM)
+#
+# CONFIG_SBOM is not set
+# end of Software Bill Of Materials (SBOM)
+# end of General setup
+
+#
+# Mainboard
+#
+
+#
+# Important: Run 'make distclean' before switching boards
+#
+# CONFIG_VENDOR_51NB is not set
+# CONFIG_VENDOR_ACER is not set
+# CONFIG_VENDOR_AMD is not set
+# CONFIG_VENDOR_AOOSTAR is not set
+# CONFIG_VENDOR_AOPEN is not set
+# CONFIG_VENDOR_APPLE is not set
+# CONFIG_VENDOR_ASROCK is not set
+# CONFIG_VENDOR_ASUS is not set
+# CONFIG_VENDOR_BIOSTAR is not set
+# CONFIG_VENDOR_BOSTENTECH is not set
+# CONFIG_VENDOR_BYTEDANCE is not set
+# CONFIG_VENDOR_CAVIUM is not set
+# CONFIG_VENDOR_CLEVO is not set
+# CONFIG_VENDOR_COMPULAB is not set
+# CONFIG_VENDOR_CWWK is not set
+# CONFIG_VENDOR_DELL is not set
+CONFIG_VENDOR_EMULATION=y
+# CONFIG_VENDOR_EXAMPLE is not set
+# CONFIG_VENDOR_FACEBOOK is not set
+# CONFIG_VENDOR_FOXCONN is not set
+# CONFIG_VENDOR_FRAMEWORK is not set
+# CONFIG_VENDOR_GETAC is not set
+# CONFIG_VENDOR_GIGABYTE is not set
+# CONFIG_VENDOR_GOOGLE is not set
+# CONFIG_VENDOR_HP is not set
+# CONFIG_VENDOR_IBASE is not set
+# CONFIG_VENDOR_IBM is not set
+# CONFIG_VENDOR_INTEL is not set
+# CONFIG_VENDOR_INVENTEC is not set
+# CONFIG_VENDOR_KONTRON is not set
+# CONFIG_VENDOR_LENOVO is not set
+# CONFIG_VENDOR_LIBRETREND is not set
+# CONFIG_VENDOR_MSI is not set
+# CONFIG_VENDOR_OCP is not set
+# CONFIG_VENDOR_OPENCELLULAR is not set
+# CONFIG_VENDOR_PACKARDBELL is not set
+# CONFIG_VENDOR_PCENGINES is not set
+# CONFIG_VENDOR_PINE64 is not set
+# CONFIG_VENDOR_PORTWELL is not set
+# CONFIG_VENDOR_PRODRIVE is not set
+# CONFIG_VENDOR_PROTECTLI is not set
+# CONFIG_VENDOR_PURISM is not set
+# CONFIG_VENDOR_RAPTOR_CS is not set
+# CONFIG_VENDOR_RAZER is not set
+# CONFIG_VENDOR_RODA is not set
+# CONFIG_VENDOR_SAMSUNG is not set
+# CONFIG_VENDOR_SAPPHIRE is not set
+# CONFIG_VENDOR_SIEMENS is not set
+# CONFIG_VENDOR_SIFIVE is not set
+# CONFIG_VENDOR_STARLABS is not set
+# CONFIG_VENDOR_SUPERMICRO is not set
+# CONFIG_VENDOR_SYSTEM76 is not set
+# CONFIG_VENDOR_TI is not set
+# CONFIG_VENDOR_UP is not set
+CONFIG_BOARD_SPECIFIC_OPTIONS=y
+CONFIG_MAINBOARD_PART_NUMBER="QEMU x86 i440fx/piix4"
+CONFIG_MAINBOARD_VERSION="1.0"
+CONFIG_MAINBOARD_DIR="emulation/qemu-i440fx"
+CONFIG_DIMM_MAX=4
+CONFIG_DIMM_SPD_SIZE=256
+CONFIG_FMDFILE=""
+# CONFIG_NO_POST is not set
+CONFIG_MAINBOARD_VENDOR="QEMU"
+CONFIG_CBFS_SIZE=0xBE0000
+CONFIG_CONSOLE_SERIAL=y
+CONFIG_MAX_CPUS=4
+# CONFIG_ONBOARD_VGA_IS_PRIMARY is not set
+CONFIG_POST_DEVICE=y
+CONFIG_POST_IO=y
+CONFIG_UART_FOR_CONSOLE=0
+CONFIG_DEVICETREE="devicetree.cb"
+# CONFIG_VBOOT is not set
+CONFIG_VBOOT_VBNV_OFFSET=0x2c
+CONFIG_IRQ_SLOT_COUNT=6
+CONFIG_OVERRIDE_DEVICETREE=""
+# CONFIG_VGA_BIOS is not set
+CONFIG_PCIEXP_ASPM=y
+# CONFIG_PCIEXP_CLK_PM is not set
+CONFIG_MAINBOARD_SMBIOS_MANUFACTURER="QEMU"
+CONFIG_PRERAM_CBMEM_CONSOLE_SIZE=0xc00
+CONFIG_CMOS_DEFAULT_FILE="src/mainboard/$(MAINBOARDDIR)/cmos.default"
+CONFIG_CMOS_LAYOUT_FILE="src/mainboard/$(MAINBOARDDIR)/cmos.layout"
+CONFIG_MAX_SOCKET=1
+# CONFIG_CONSOLE_POST is not set
+# CONFIG_BOARD_EMULATION_QEMU_AARCH64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_ARMV7 is not set
+CONFIG_BOARD_EMULATION_QEMU_X86_I440FX=y
+# CONFIG_BOARD_EMULATION_QEMU_POWER8 is not set
+# CONFIG_BOARD_EMULATION_QEMU_POWER9 is not set
+# CONFIG_BOARD_EMULATION_QEMU_X86_Q35 is not set
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV32 is not set
+# CONFIG_BOARD_EMULATION_QEMU_SBSA is not set
+# CONFIG_BOARD_EMULATION_SPIKE_RISCV is not set
+CONFIG_MEMLAYOUT_LD_FILE="src/arch/x86/memlayout.ld"
+CONFIG_DCACHE_RAM_BASE=0x10000
+CONFIG_DCACHE_RAM_SIZE=0x90000
+CONFIG_C_ENV_BOOTBLOCK_SIZE=0x10000
+CONFIG_DCACHE_BSP_STACK_SIZE=0x4000
+CONFIG_MAX_ACPI_TABLE_SIZE_KB=144
+# CONFIG_DRIVERS_INTEL_WIFI is not set
+CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x20000
+CONFIG_ACPI_FNKEY_GEN_SCANCODE=0
+CONFIG_CARDBUS_PLUGIN_SUPPORT=y
+CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME="QEMU x86"
+CONFIG_PCIEXP_HOTPLUG_BUSES=8
+CONFIG_PCIEXP_HOTPLUG_MEM=0x800000
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM=0x10000000
+CONFIG_PS2K_EISAID="PNP0303"
+CONFIG_PS2M_EISAID="PNP0F13"
+CONFIG_TTYS0_BAUD=115200
+CONFIG_D3COLD_SUPPORT=y
+CONFIG_DRIVERS_UART_8250IO=y
+CONFIG_PC_CMOS_BASE_PORT_BANK1=0x72
+CONFIG_HEAP_SIZE=0x100000
+CONFIG_EC_GPE_SCI=0x50
+CONFIG_EC_STARLABS_BATTERY_MODEL="Unknown"
+CONFIG_EC_STARLABS_BATTERY_TYPE="LION"
+CONFIG_EC_STARLABS_BATTERY_OEM="Unknown"
+CONFIG_BOARD_ROMSIZE_KB_4096=y
+# CONFIG_COREBOOT_ROMSIZE_KB_256 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_512 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_1024 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_2048 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_4096 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_5120 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_6144 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_8192 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_10240 is not set
+CONFIG_COREBOOT_ROMSIZE_KB_12288=y
+# CONFIG_COREBOOT_ROMSIZE_KB_16384 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_24576 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_32768 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_65536 is not set
+CONFIG_COREBOOT_ROMSIZE_KB=12288
+CONFIG_ROM_SIZE=0x00c00000
+# end of Mainboard
+
+#
+# Chipset
+#
+
+#
+# SoC
+#
+CONFIG_CHIPSET_DEVICETREE=""
+CONFIG_CBFS_MCACHE_SIZE=0x4000
+CONFIG_ROMSTAGE_ADDR=0x2000000
+CONFIG_VERSTAGE_ADDR=0x2000000
+# CONFIG_USE_X86_64_SUPPORT is not set
+CONFIG_PRERAM_CBFS_CACHE_SIZE=0x4000
+CONFIG_DOMAIN_RESOURCE_32BIT_LIMIT=0xfe000000
+CONFIG_ACPI_CPU_STRING="CP%02X"
+CONFIG_STACK_SIZE=0x2000
+CONFIG_INTEL_GMA_BCLV_OFFSET=0xc8254
+CONFIG_INTEL_GMA_BCLV_WIDTH=16
+CONFIG_INTEL_GMA_BCLM_OFFSET=0xc8256
+CONFIG_INTEL_GMA_BCLM_WIDTH=16
+CONFIG_BOOTBLOCK_IN_CBFS=y
+CONFIG_PCIEXP_COMMON_CLOCK=y
+CONFIG_SOC_PHYSICAL_ADDRESS_WIDTH=0
+CONFIG_FIXED_SMBUS_IO_BASE=0x400
+CONFIG_CBFS_CACHE_ALIGN=8
+
+#
+# CPU
+#
+CONFIG_CPU_QEMU_X86=y
+CONFIG_PARALLEL_MP=y
+CONFIG_XAPIC_ONLY=y
+# CONFIG_X2APIC_ONLY is not set
+# CONFIG_X2APIC_RUNTIME is not set
+# CONFIG_X2APIC_LATE_WORKAROUND is not set
+CONFIG_UDELAY_TSC=y
+CONFIG_UNKNOWN_TSC_RATE=y
+CONFIG_TSC_MONOTONIC_TIMER=y
+CONFIG_NO_SMM=y
+CONFIG_NEED_SMALL_2MB_PAGE_TABLES=y
+CONFIG_SMM_PCI_RESOURCE_STORE_NUM_SLOTS=8
+CONFIG_AP_STACK_SIZE=0x800
+CONFIG_SMP=y
+
+#
+# Northbridge
+#
+
+#
+# Southbridge
+#
+CONFIG_PCIEXP_HOTPLUG=y
+CONFIG_SOUTHBRIDGE_INTEL_I82371EB=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RESET=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RTC=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_SMBUS=y
+CONFIG_FIXED_RCBA_MMIO_BASE=0xfed1c000
+CONFIG_RCBA_LENGTH=0x4000
+
+#
+# Super I/O
+#
+
+#
+# Embedded Controllers
+#
+CONFIG_ARCH_X86=y
+CONFIG_ARCH_BOOTBLOCK_X86_32=y
+CONFIG_ARCH_VERSTAGE_X86_32=y
+CONFIG_ARCH_ROMSTAGE_X86_32=y
+CONFIG_ARCH_POSTCAR_X86_32=y
+CONFIG_ARCH_RAMSTAGE_X86_32=y
+CONFIG_ARCH_ALL_STAGES_X86_32=y
+CONFIG_HAVE_X86_64_SUPPORT=y
+CONFIG_X86_TOP4G_BOOTMEDIA_MAP=y
+CONFIG_POSTRAM_CBFS_CACHE_IN_BSS=y
+CONFIG_RAMSTAGE_CBFS_CACHE_SIZE=0x4000
+CONFIG_PC80_SYSTEM=y
+CONFIG_HAVE_CMOS_DEFAULT=y
+CONFIG_POSTCAR_STAGE=y
+CONFIG_BOOTBLOCK_SIMPLE=y
+# CONFIG_BOOTBLOCK_NORMAL is not set
+CONFIG_COLLECT_TIMESTAMPS_TSC=y
+CONFIG_HAVE_CF9_RESET=y
+CONFIG_DEBUG_HW_BREAKPOINTS=y
+CONFIG_DEBUG_NULL_DEREF_BREAKPOINTS=y
+# CONFIG_DUMP_SMBIOS_TYPE17 is not set
+CONFIG_X86_BOOTBLOCK_EXTRA_PROGRAM_SZ=0
+# end of Chipset
+
+#
+# Devices
+#
+CONFIG_HAVE_VGA_TEXT_FRAMEBUFFER=y
+CONFIG_HAVE_LINEAR_FRAMEBUFFER=y
+CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT=y
+CONFIG_MAINBOARD_FORCE_NATIVE_VGA_INIT=y
+CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y
+CONFIG_NO_EARLY_GFX_INIT=y
+
+#
+# Display
+#
+# CONFIG_VGA_TEXT_FRAMEBUFFER is not set
+CONFIG_GENERIC_LINEAR_FRAMEBUFFER=y
+CONFIG_LINEAR_FRAMEBUFFER=y
+# CONFIG_BOOTSPLASH is not set
+# end of Display
+
+CONFIG_PCI=y
+CONFIG_NO_ECAM_MMCONF_SUPPORT=y
+CONFIG_PCIX_PLUGIN_SUPPORT=y
+CONFIG_PCIEXP_PLUGIN_SUPPORT=y
+CONFIG_PCI_ALLOW_BUS_MASTER=y
+CONFIG_PCI_SET_BUS_MASTER_PCI_BRIDGES=y
+CONFIG_PCI_ALLOW_BUS_MASTER_ANY_DEVICE=y
+# CONFIG_PCIEXP_LANE_ERR_STAT_CLEAR is not set
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM_ABOVE_4G=y
+# CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM_BELOW_4G is not set
+CONFIG_PCIEXP_HOTPLUG_IO=0x2000
+# CONFIG_EARLY_PCI_BRIDGE is not set
+CONFIG_SUBSYSTEM_VENDOR_ID=0x0000
+CONFIG_SUBSYSTEM_DEVICE_ID=0x0000
+# CONFIG_SOFTWARE_I2C is not set
+CONFIG_I2C_TRANSFER_TIMEOUT_US=500000
+# CONFIG_RESOURCE_ALLOCATION_TOP_DOWN is not set
+# end of Devices
+
+#
+# Generic Drivers
+#
+CONFIG_CRB_TPM_BASE_ADDRESS=0xfed40000
+CONFIG_DRIVERS_UART=y
+# CONFIG_DRIVERS_UART_OXPCIE is not set
+# CONFIG_VPD is not set
+CONFIG_DRIVERS_EMULATION_QEMU_BOCHS=y
+CONFIG_DRIVERS_EMULATION_QEMU_CIRRUS=y
+CONFIG_DRIVERS_EMULATION_QEMU_XRES=800
+CONFIG_DRIVERS_EMULATION_QEMU_YRES=600
+# CONFIG_DRIVERS_GENERIC_CBFS_SERIAL is not set
+# CONFIG_DRIVERS_GENERIC_CBFS_UUID is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9750 is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9755 is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9763E is not set
+# CONFIG_DRIVERS_I2C_MAX98396 is not set
+# CONFIG_DRIVERS_NXP_UWB_SR1XX is not set
+# CONFIG_DRIVERS_PS2_KEYBOARD is not set
+CONFIG_DRIVERS_MC146818=y
+# CONFIG_USE_PC_CMOS_ALTCENTURY is not set
+CONFIG_PC_CMOS_BASE_PORT_BANK0=0x70
+CONFIG_VGA=y
+# CONFIG_DRIVERS_SIL_3114 is not set
+CONFIG_DRIVERS_WIFI_GENERIC=y
+CONFIG_DRIVERS_MTK_WIFI=y
+# end of Generic Drivers
+
+#
+# Security
+#
+
+#
+# CBFS verification
+#
+# CONFIG_CBFS_VERIFICATION is not set
+# end of CBFS verification
+
+#
+# Verified Boot (vboot)
+#
+# end of Verified Boot (vboot)
+
+#
+# Trusted Platform Module
+#
+CONFIG_NO_TPM=y
+CONFIG_PCR_BOOT_MODE=1
+CONFIG_PCR_HWID=1
+CONFIG_PCR_SRTM=2
+CONFIG_PCR_FW_VER=10
+CONFIG_PCR_RUNTIME_DATA=3
+# end of Trusted Platform Module
+
+#
+# Memory initialization
+#
+CONFIG_PLATFORM_HAS_DRAM_CLEAR=y
+CONFIG_SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT=y
+# end of Memory initialization
+
+CONFIG_BOOTMEDIA_LOCK_NONE=y
+# CONFIG_BOOTMEDIA_LOCK_CONTROLLER is not set
+# CONFIG_BOOTMEDIA_LOCK_CHIP is not set
+# end of Security
+
+CONFIG_ACPI_HAVE_PCAT_8259=y
+CONFIG_ACPI_INTEL_HARDWARE_SLEEP_VALUES=y
+CONFIG_ACPI_NO_CUSTOM_MADT=y
+CONFIG_ACPI_COMMON_MADT_LAPIC=y
+CONFIG_ACPI_COMMON_MADT_IOAPIC=y
+CONFIG_HAVE_ACPI_TABLES=y
+CONFIG_BOOT_DEVICE_NOT_SPI_FLASH=y
+CONFIG_BOOT_DEVICE_MEMORY_MAPPED=y
+
+#
+# Console
+#
+CONFIG_BOOTBLOCK_CONSOLE=y
+CONFIG_POSTCAR_CONSOLE=y
+CONFIG_SQUELCH_EARLY_SMP=y
+
+#
+# I/O mapped, 8250-compatible
+#
+CONFIG_TTYS0_BASE=0x3f8
+
+#
+# Serial port base address = 0x3f8
+#
+# CONFIG_CONSOLE_SERIAL_921600 is not set
+# CONFIG_CONSOLE_SERIAL_460800 is not set
+# CONFIG_CONSOLE_SERIAL_230400 is not set
+CONFIG_CONSOLE_SERIAL_115200=y
+# CONFIG_CONSOLE_SERIAL_57600 is not set
+# CONFIG_CONSOLE_SERIAL_38400 is not set
+# CONFIG_CONSOLE_SERIAL_19200 is not set
+# CONFIG_CONSOLE_SERIAL_9600 is not set
+CONFIG_TTYS0_LCS=3
+# CONFIG_SPKMODEM is not set
+# CONFIG_CONSOLE_NE2K is not set
+CONFIG_CONSOLE_CBMEM=y
+# CONFIG_CONSOLE_I2C_SMBUS is not set
+CONFIG_CONSOLE_QEMU_DEBUGCON=y
+CONFIG_CONSOLE_QEMU_DEBUGCON_PORT=0x402
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_8 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_7 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_6 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_5 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_4 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_3 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_2 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_1 is not set
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL_0=y
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL=0
+CONFIG_CONSOLE_USE_LOGLEVEL_PREFIX=y
+CONFIG_CONSOLE_USE_ANSI_ESCAPES=y
+# CONFIG_CMOS_POST is not set
+CONFIG_POST_DEVICE_NONE=y
+# CONFIG_POST_DEVICE_LPC is not set
+# CONFIG_POST_DEVICE_PCI_PCIE is not set
+CONFIG_POST_IO_PORT=0x80
+CONFIG_HWBASE_DEBUG_NULL=y
+# end of Console
+
+CONFIG_HAVE_MONOTONIC_TIMER=y
+CONFIG_HAVE_OPTION_TABLE=y
+CONFIG_IOAPIC=y
+CONFIG_HAVE_PIRQ_TABLE=y
+
+#
+# System tables
+#
+CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_GENERATE_SMBIOS_TABLES=y
+CONFIG_BIOS_VENDOR="coreboot"
+CONFIG_MAINBOARD_SERIAL_NUMBER="123456789"
+# end of System tables
+
+#
+# Payload
+#
+CONFIG_PAYLOAD_NONE=y
+# end of Payload
+
+#
+# Debugging
+#
+
+#
+# CPU Debug Settings
+#
+# CONFIG_DISPLAY_MTRRS is not set
+
+#
+# Vendorcode Debug Settings
+#
+
+#
+# BLOB Debug Settings
+#
+
+#
+# General Debug Settings
+#
+# CONFIG_GDB_STUB is not set
+# CONFIG_FATAL_ASSERTS is not set
+# CONFIG_DEBUG_CBFS is not set
+# CONFIG_DEBUG_PIRQ is not set
+CONFIG_HAVE_DEBUG_SMBUS=y
+# CONFIG_DEBUG_SMBUS is not set
+# CONFIG_DEBUG_CONSOLE_INIT is not set
+# CONFIG_DEBUG_BOOT_STATE is not set
+# CONFIG_DEBUG_ADA_CODE is not set
+# CONFIG_DEBUG_ACPICA_COMPATIBLE is not set
+# end of Debugging
+
+CONFIG_DECOMPRESS_OFAST=y
+CONFIG_PROBE_RAM=y
+CONFIG_WARNINGS_ARE_ERRORS=y
+CONFIG_MAX_REBOOT_CNT=3
+CONFIG_RELOCATABLE_MODULES=y
+CONFIG_HAVE_BOOTBLOCK=y
+CONFIG_HAVE_ROMSTAGE=y
+CONFIG_HAVE_RAMSTAGE=y
diff --git a/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_txtmode b/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_txtmode
new file mode 100644
index 00000000..64afd0a0
--- /dev/null
+++ b/config/coreboot/qemu_x86_64_12mb/config/libgfxinit_txtmode
@@ -0,0 +1,501 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# coreboot configuration
+#
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+CONFIG_CBFS_PREFIX="fallback"
+CONFIG_COMPILER_GCC=y
+# CONFIG_COMPILER_LLVM_CLANG is not set
+CONFIG_ARCH_SUPPORTS_CLANG=y
+# CONFIG_ANY_TOOLCHAIN is not set
+# CONFIG_CCACHE is not set
+# CONFIG_IWYU is not set
+# CONFIG_FMD_GENPARSER is not set
+# CONFIG_UTIL_GENPARSER is not set
+# CONFIG_OPTION_BACKEND_NONE is not set
+CONFIG_USE_OPTION_TABLE=y
+CONFIG_STATIC_OPTION_TABLE=y
+CONFIG_COMPRESS_RAMSTAGE_LZMA=y
+# CONFIG_COMPRESS_RAMSTAGE_LZ4 is not set
+CONFIG_SEPARATE_ROMSTAGE=y
+CONFIG_INCLUDE_CONFIG_FILE=y
+CONFIG_COLLECT_TIMESTAMPS=y
+# CONFIG_TIMESTAMPS_ON_CONSOLE is not set
+CONFIG_USE_BLOBS=y
+# CONFIG_USE_AMD_BLOBS is not set
+# CONFIG_USE_QC_BLOBS is not set
+# CONFIG_COVERAGE is not set
+# CONFIG_UBSAN is not set
+CONFIG_HAVE_ASAN_IN_ROMSTAGE=y
+CONFIG_HAVE_ASAN_IN_RAMSTAGE=y
+# CONFIG_ASAN is not set
+CONFIG_NO_STAGE_CACHE=y
+# CONFIG_CBMEM_STAGE_CACHE is not set
+# CONFIG_UPDATE_IMAGE is not set
+# CONFIG_BOOTSPLASH_IMAGE is not set
+
+#
+# Software Bill Of Materials (SBOM)
+#
+# CONFIG_SBOM is not set
+# end of Software Bill Of Materials (SBOM)
+# end of General setup
+
+#
+# Mainboard
+#
+
+#
+# Important: Run 'make distclean' before switching boards
+#
+# CONFIG_VENDOR_51NB is not set
+# CONFIG_VENDOR_ACER is not set
+# CONFIG_VENDOR_AMD is not set
+# CONFIG_VENDOR_AOOSTAR is not set
+# CONFIG_VENDOR_AOPEN is not set
+# CONFIG_VENDOR_APPLE is not set
+# CONFIG_VENDOR_ASROCK is not set
+# CONFIG_VENDOR_ASUS is not set
+# CONFIG_VENDOR_BIOSTAR is not set
+# CONFIG_VENDOR_BOSTENTECH is not set
+# CONFIG_VENDOR_BYTEDANCE is not set
+# CONFIG_VENDOR_CAVIUM is not set
+# CONFIG_VENDOR_CLEVO is not set
+# CONFIG_VENDOR_COMPULAB is not set
+# CONFIG_VENDOR_CWWK is not set
+# CONFIG_VENDOR_DELL is not set
+CONFIG_VENDOR_EMULATION=y
+# CONFIG_VENDOR_EXAMPLE is not set
+# CONFIG_VENDOR_FACEBOOK is not set
+# CONFIG_VENDOR_FOXCONN is not set
+# CONFIG_VENDOR_FRAMEWORK is not set
+# CONFIG_VENDOR_GETAC is not set
+# CONFIG_VENDOR_GIGABYTE is not set
+# CONFIG_VENDOR_GOOGLE is not set
+# CONFIG_VENDOR_HP is not set
+# CONFIG_VENDOR_IBASE is not set
+# CONFIG_VENDOR_IBM is not set
+# CONFIG_VENDOR_INTEL is not set
+# CONFIG_VENDOR_INVENTEC is not set
+# CONFIG_VENDOR_KONTRON is not set
+# CONFIG_VENDOR_LENOVO is not set
+# CONFIG_VENDOR_LIBRETREND is not set
+# CONFIG_VENDOR_MSI is not set
+# CONFIG_VENDOR_OCP is not set
+# CONFIG_VENDOR_OPENCELLULAR is not set
+# CONFIG_VENDOR_PACKARDBELL is not set
+# CONFIG_VENDOR_PCENGINES is not set
+# CONFIG_VENDOR_PINE64 is not set
+# CONFIG_VENDOR_PORTWELL is not set
+# CONFIG_VENDOR_PRODRIVE is not set
+# CONFIG_VENDOR_PROTECTLI is not set
+# CONFIG_VENDOR_PURISM is not set
+# CONFIG_VENDOR_RAPTOR_CS is not set
+# CONFIG_VENDOR_RAZER is not set
+# CONFIG_VENDOR_RODA is not set
+# CONFIG_VENDOR_SAMSUNG is not set
+# CONFIG_VENDOR_SAPPHIRE is not set
+# CONFIG_VENDOR_SIEMENS is not set
+# CONFIG_VENDOR_SIFIVE is not set
+# CONFIG_VENDOR_STARLABS is not set
+# CONFIG_VENDOR_SUPERMICRO is not set
+# CONFIG_VENDOR_SYSTEM76 is not set
+# CONFIG_VENDOR_TI is not set
+# CONFIG_VENDOR_UP is not set
+CONFIG_BOARD_SPECIFIC_OPTIONS=y
+CONFIG_MAINBOARD_PART_NUMBER="QEMU x86 i440fx/piix4"
+CONFIG_MAINBOARD_VERSION="1.0"
+CONFIG_MAINBOARD_DIR="emulation/qemu-i440fx"
+CONFIG_DIMM_MAX=4
+CONFIG_DIMM_SPD_SIZE=256
+CONFIG_FMDFILE=""
+# CONFIG_NO_POST is not set
+CONFIG_MAINBOARD_VENDOR="QEMU"
+CONFIG_CBFS_SIZE=0xBE0000
+CONFIG_CONSOLE_SERIAL=y
+CONFIG_MAX_CPUS=4
+# CONFIG_ONBOARD_VGA_IS_PRIMARY is not set
+CONFIG_POST_DEVICE=y
+CONFIG_POST_IO=y
+CONFIG_UART_FOR_CONSOLE=0
+CONFIG_DEVICETREE="devicetree.cb"
+# CONFIG_VBOOT is not set
+CONFIG_VBOOT_VBNV_OFFSET=0x2c
+CONFIG_IRQ_SLOT_COUNT=6
+CONFIG_OVERRIDE_DEVICETREE=""
+# CONFIG_VGA_BIOS is not set
+CONFIG_PCIEXP_ASPM=y
+# CONFIG_PCIEXP_CLK_PM is not set
+CONFIG_MAINBOARD_SMBIOS_MANUFACTURER="QEMU"
+CONFIG_PRERAM_CBMEM_CONSOLE_SIZE=0xc00
+CONFIG_CMOS_DEFAULT_FILE="src/mainboard/$(MAINBOARDDIR)/cmos.default"
+CONFIG_CMOS_LAYOUT_FILE="src/mainboard/$(MAINBOARDDIR)/cmos.layout"
+CONFIG_MAX_SOCKET=1
+# CONFIG_CONSOLE_POST is not set
+# CONFIG_BOARD_EMULATION_QEMU_AARCH64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_ARMV7 is not set
+CONFIG_BOARD_EMULATION_QEMU_X86_I440FX=y
+# CONFIG_BOARD_EMULATION_QEMU_POWER8 is not set
+# CONFIG_BOARD_EMULATION_QEMU_POWER9 is not set
+# CONFIG_BOARD_EMULATION_QEMU_X86_Q35 is not set
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV32 is not set
+# CONFIG_BOARD_EMULATION_QEMU_SBSA is not set
+# CONFIG_BOARD_EMULATION_SPIKE_RISCV is not set
+CONFIG_MEMLAYOUT_LD_FILE="src/arch/x86/memlayout.ld"
+CONFIG_DCACHE_RAM_BASE=0x10000
+CONFIG_DCACHE_RAM_SIZE=0x90000
+CONFIG_C_ENV_BOOTBLOCK_SIZE=0x10000
+CONFIG_DCACHE_BSP_STACK_SIZE=0x4000
+CONFIG_MAX_ACPI_TABLE_SIZE_KB=144
+# CONFIG_DRIVERS_INTEL_WIFI is not set
+CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x20000
+CONFIG_ACPI_FNKEY_GEN_SCANCODE=0
+CONFIG_CARDBUS_PLUGIN_SUPPORT=y
+CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME="QEMU x86"
+CONFIG_PCIEXP_HOTPLUG_BUSES=8
+CONFIG_PCIEXP_HOTPLUG_MEM=0x800000
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM=0x10000000
+CONFIG_PS2K_EISAID="PNP0303"
+CONFIG_PS2M_EISAID="PNP0F13"
+CONFIG_TTYS0_BAUD=115200
+CONFIG_D3COLD_SUPPORT=y
+CONFIG_DRIVERS_UART_8250IO=y
+CONFIG_PC_CMOS_BASE_PORT_BANK1=0x72
+CONFIG_HEAP_SIZE=0x100000
+CONFIG_EC_GPE_SCI=0x50
+CONFIG_EC_STARLABS_BATTERY_MODEL="Unknown"
+CONFIG_EC_STARLABS_BATTERY_TYPE="LION"
+CONFIG_EC_STARLABS_BATTERY_OEM="Unknown"
+CONFIG_BOARD_ROMSIZE_KB_4096=y
+# CONFIG_COREBOOT_ROMSIZE_KB_256 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_512 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_1024 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_2048 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_4096 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_5120 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_6144 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_8192 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_10240 is not set
+CONFIG_COREBOOT_ROMSIZE_KB_12288=y
+# CONFIG_COREBOOT_ROMSIZE_KB_16384 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_24576 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_32768 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_65536 is not set
+CONFIG_COREBOOT_ROMSIZE_KB=12288
+CONFIG_ROM_SIZE=0x00c00000
+# end of Mainboard
+
+#
+# Chipset
+#
+
+#
+# SoC
+#
+CONFIG_CHIPSET_DEVICETREE=""
+CONFIG_CBFS_MCACHE_SIZE=0x4000
+CONFIG_ROMSTAGE_ADDR=0x2000000
+CONFIG_VERSTAGE_ADDR=0x2000000
+# CONFIG_USE_X86_64_SUPPORT is not set
+CONFIG_PRERAM_CBFS_CACHE_SIZE=0x4000
+CONFIG_DOMAIN_RESOURCE_32BIT_LIMIT=0xfe000000
+CONFIG_ACPI_CPU_STRING="CP%02X"
+CONFIG_STACK_SIZE=0x2000
+CONFIG_INTEL_GMA_BCLV_OFFSET=0xc8254
+CONFIG_INTEL_GMA_BCLV_WIDTH=16
+CONFIG_INTEL_GMA_BCLM_OFFSET=0xc8256
+CONFIG_INTEL_GMA_BCLM_WIDTH=16
+CONFIG_BOOTBLOCK_IN_CBFS=y
+CONFIG_PCIEXP_COMMON_CLOCK=y
+CONFIG_SOC_PHYSICAL_ADDRESS_WIDTH=0
+CONFIG_FIXED_SMBUS_IO_BASE=0x400
+CONFIG_CBFS_CACHE_ALIGN=8
+
+#
+# CPU
+#
+CONFIG_CPU_QEMU_X86=y
+CONFIG_PARALLEL_MP=y
+CONFIG_XAPIC_ONLY=y
+# CONFIG_X2APIC_ONLY is not set
+# CONFIG_X2APIC_RUNTIME is not set
+# CONFIG_X2APIC_LATE_WORKAROUND is not set
+CONFIG_UDELAY_TSC=y
+CONFIG_UNKNOWN_TSC_RATE=y
+CONFIG_TSC_MONOTONIC_TIMER=y
+CONFIG_NO_SMM=y
+CONFIG_NEED_SMALL_2MB_PAGE_TABLES=y
+CONFIG_SMM_PCI_RESOURCE_STORE_NUM_SLOTS=8
+CONFIG_AP_STACK_SIZE=0x800
+CONFIG_SMP=y
+
+#
+# Northbridge
+#
+
+#
+# Southbridge
+#
+CONFIG_PCIEXP_HOTPLUG=y
+CONFIG_SOUTHBRIDGE_INTEL_I82371EB=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RESET=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RTC=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_SMBUS=y
+CONFIG_FIXED_RCBA_MMIO_BASE=0xfed1c000
+CONFIG_RCBA_LENGTH=0x4000
+
+#
+# Super I/O
+#
+
+#
+# Embedded Controllers
+#
+CONFIG_ARCH_X86=y
+CONFIG_ARCH_BOOTBLOCK_X86_32=y
+CONFIG_ARCH_VERSTAGE_X86_32=y
+CONFIG_ARCH_ROMSTAGE_X86_32=y
+CONFIG_ARCH_POSTCAR_X86_32=y
+CONFIG_ARCH_RAMSTAGE_X86_32=y
+CONFIG_ARCH_ALL_STAGES_X86_32=y
+CONFIG_HAVE_X86_64_SUPPORT=y
+CONFIG_X86_TOP4G_BOOTMEDIA_MAP=y
+CONFIG_POSTRAM_CBFS_CACHE_IN_BSS=y
+CONFIG_RAMSTAGE_CBFS_CACHE_SIZE=0x4000
+CONFIG_PC80_SYSTEM=y
+CONFIG_HAVE_CMOS_DEFAULT=y
+CONFIG_POSTCAR_STAGE=y
+CONFIG_BOOTBLOCK_SIMPLE=y
+# CONFIG_BOOTBLOCK_NORMAL is not set
+CONFIG_COLLECT_TIMESTAMPS_TSC=y
+CONFIG_HAVE_CF9_RESET=y
+CONFIG_DEBUG_HW_BREAKPOINTS=y
+CONFIG_DEBUG_NULL_DEREF_BREAKPOINTS=y
+# CONFIG_DUMP_SMBIOS_TYPE17 is not set
+CONFIG_X86_BOOTBLOCK_EXTRA_PROGRAM_SZ=0
+# end of Chipset
+
+#
+# Devices
+#
+CONFIG_HAVE_VGA_TEXT_FRAMEBUFFER=y
+CONFIG_HAVE_LINEAR_FRAMEBUFFER=y
+CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT=y
+CONFIG_MAINBOARD_FORCE_NATIVE_VGA_INIT=y
+CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y
+CONFIG_NO_EARLY_GFX_INIT=y
+
+#
+# Display
+#
+CONFIG_VGA_TEXT_FRAMEBUFFER=y
+# CONFIG_GENERIC_LINEAR_FRAMEBUFFER is not set
+# end of Display
+
+CONFIG_PCI=y
+CONFIG_NO_ECAM_MMCONF_SUPPORT=y
+CONFIG_PCIX_PLUGIN_SUPPORT=y
+CONFIG_PCIEXP_PLUGIN_SUPPORT=y
+CONFIG_PCI_ALLOW_BUS_MASTER=y
+CONFIG_PCI_SET_BUS_MASTER_PCI_BRIDGES=y
+CONFIG_PCI_ALLOW_BUS_MASTER_ANY_DEVICE=y
+# CONFIG_PCIEXP_LANE_ERR_STAT_CLEAR is not set
+CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM_ABOVE_4G=y
+# CONFIG_PCIEXP_HOTPLUG_PREFETCH_MEM_BELOW_4G is not set
+CONFIG_PCIEXP_HOTPLUG_IO=0x2000
+# CONFIG_EARLY_PCI_BRIDGE is not set
+CONFIG_SUBSYSTEM_VENDOR_ID=0x0000
+CONFIG_SUBSYSTEM_DEVICE_ID=0x0000
+# CONFIG_SOFTWARE_I2C is not set
+CONFIG_I2C_TRANSFER_TIMEOUT_US=500000
+# CONFIG_RESOURCE_ALLOCATION_TOP_DOWN is not set
+# end of Devices
+
+#
+# Generic Drivers
+#
+CONFIG_CRB_TPM_BASE_ADDRESS=0xfed40000
+CONFIG_DRIVERS_UART=y
+# CONFIG_DRIVERS_UART_OXPCIE is not set
+# CONFIG_VPD is not set
+CONFIG_DRIVERS_EMULATION_QEMU_BOCHS=y
+CONFIG_DRIVERS_EMULATION_QEMU_CIRRUS=y
+# CONFIG_DRIVERS_GENERIC_CBFS_SERIAL is not set
+# CONFIG_DRIVERS_GENERIC_CBFS_UUID is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9750 is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9755 is not set
+# CONFIG_DRIVERS_GENESYSLOGIC_GL9763E is not set
+# CONFIG_DRIVERS_I2C_MAX98396 is not set
+# CONFIG_DRIVERS_NXP_UWB_SR1XX is not set
+# CONFIG_DRIVERS_PS2_KEYBOARD is not set
+CONFIG_DRIVERS_MC146818=y
+# CONFIG_USE_PC_CMOS_ALTCENTURY is not set
+CONFIG_PC_CMOS_BASE_PORT_BANK0=0x70
+CONFIG_VGA=y
+# CONFIG_DRIVERS_SIL_3114 is not set
+CONFIG_DRIVERS_WIFI_GENERIC=y
+CONFIG_DRIVERS_MTK_WIFI=y
+# end of Generic Drivers
+
+#
+# Security
+#
+
+#
+# CBFS verification
+#
+# CONFIG_CBFS_VERIFICATION is not set
+# end of CBFS verification
+
+#
+# Verified Boot (vboot)
+#
+# end of Verified Boot (vboot)
+
+#
+# Trusted Platform Module
+#
+CONFIG_NO_TPM=y
+CONFIG_PCR_BOOT_MODE=1
+CONFIG_PCR_HWID=1
+CONFIG_PCR_SRTM=2
+CONFIG_PCR_FW_VER=10
+CONFIG_PCR_RUNTIME_DATA=3
+# end of Trusted Platform Module
+
+#
+# Memory initialization
+#
+CONFIG_PLATFORM_HAS_DRAM_CLEAR=y
+CONFIG_SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT=y
+# end of Memory initialization
+
+CONFIG_BOOTMEDIA_LOCK_NONE=y
+# CONFIG_BOOTMEDIA_LOCK_CONTROLLER is not set
+# CONFIG_BOOTMEDIA_LOCK_CHIP is not set
+# end of Security
+
+CONFIG_ACPI_HAVE_PCAT_8259=y
+CONFIG_ACPI_INTEL_HARDWARE_SLEEP_VALUES=y
+CONFIG_ACPI_NO_CUSTOM_MADT=y
+CONFIG_ACPI_COMMON_MADT_LAPIC=y
+CONFIG_ACPI_COMMON_MADT_IOAPIC=y
+CONFIG_HAVE_ACPI_TABLES=y
+CONFIG_BOOT_DEVICE_NOT_SPI_FLASH=y
+CONFIG_BOOT_DEVICE_MEMORY_MAPPED=y
+
+#
+# Console
+#
+CONFIG_BOOTBLOCK_CONSOLE=y
+CONFIG_POSTCAR_CONSOLE=y
+CONFIG_SQUELCH_EARLY_SMP=y
+
+#
+# I/O mapped, 8250-compatible
+#
+CONFIG_TTYS0_BASE=0x3f8
+
+#
+# Serial port base address = 0x3f8
+#
+# CONFIG_CONSOLE_SERIAL_921600 is not set
+# CONFIG_CONSOLE_SERIAL_460800 is not set
+# CONFIG_CONSOLE_SERIAL_230400 is not set
+CONFIG_CONSOLE_SERIAL_115200=y
+# CONFIG_CONSOLE_SERIAL_57600 is not set
+# CONFIG_CONSOLE_SERIAL_38400 is not set
+# CONFIG_CONSOLE_SERIAL_19200 is not set
+# CONFIG_CONSOLE_SERIAL_9600 is not set
+CONFIG_TTYS0_LCS=3
+# CONFIG_SPKMODEM is not set
+# CONFIG_CONSOLE_NE2K is not set
+CONFIG_CONSOLE_CBMEM=y
+# CONFIG_CONSOLE_I2C_SMBUS is not set
+CONFIG_CONSOLE_QEMU_DEBUGCON=y
+CONFIG_CONSOLE_QEMU_DEBUGCON_PORT=0x402
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_8 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_7 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_6 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_5 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_4 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_3 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_2 is not set
+# CONFIG_DEFAULT_CONSOLE_LOGLEVEL_1 is not set
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL_0=y
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL=0
+CONFIG_CONSOLE_USE_LOGLEVEL_PREFIX=y
+CONFIG_CONSOLE_USE_ANSI_ESCAPES=y
+# CONFIG_CMOS_POST is not set
+CONFIG_POST_DEVICE_NONE=y
+# CONFIG_POST_DEVICE_LPC is not set
+# CONFIG_POST_DEVICE_PCI_PCIE is not set
+CONFIG_POST_IO_PORT=0x80
+CONFIG_HWBASE_DEBUG_NULL=y
+# end of Console
+
+CONFIG_HAVE_MONOTONIC_TIMER=y
+CONFIG_HAVE_OPTION_TABLE=y
+CONFIG_IOAPIC=y
+CONFIG_HAVE_PIRQ_TABLE=y
+
+#
+# System tables
+#
+CONFIG_GENERATE_PIRQ_TABLE=y
+CONFIG_GENERATE_SMBIOS_TABLES=y
+CONFIG_BIOS_VENDOR="coreboot"
+CONFIG_MAINBOARD_SERIAL_NUMBER="123456789"
+# end of System tables
+
+#
+# Payload
+#
+CONFIG_PAYLOAD_NONE=y
+# end of Payload
+
+#
+# Debugging
+#
+
+#
+# CPU Debug Settings
+#
+# CONFIG_DISPLAY_MTRRS is not set
+
+#
+# Vendorcode Debug Settings
+#
+
+#
+# BLOB Debug Settings
+#
+
+#
+# General Debug Settings
+#
+# CONFIG_GDB_STUB is not set
+# CONFIG_FATAL_ASSERTS is not set
+# CONFIG_DEBUG_CBFS is not set
+# CONFIG_DEBUG_PIRQ is not set
+CONFIG_HAVE_DEBUG_SMBUS=y
+# CONFIG_DEBUG_SMBUS is not set
+# CONFIG_DEBUG_CONSOLE_INIT is not set
+# CONFIG_DEBUG_BOOT_STATE is not set
+# CONFIG_DEBUG_ADA_CODE is not set
+# CONFIG_DEBUG_ACPICA_COMPATIBLE is not set
+# end of Debugging
+
+CONFIG_DECOMPRESS_OFAST=y
+CONFIG_PROBE_RAM=y
+CONFIG_WARNINGS_ARE_ERRORS=y
+CONFIG_MAX_REBOOT_CNT=3
+CONFIG_RELOCATABLE_MODULES=y
+CONFIG_HAVE_BOOTBLOCK=y
+CONFIG_HAVE_ROMSTAGE=y
+CONFIG_HAVE_RAMSTAGE=y
diff --git a/config/coreboot/qemu_x86_64_12mb/target.cfg b/config/coreboot/qemu_x86_64_12mb/target.cfg
new file mode 100644
index 00000000..5c1a733f
--- /dev/null
+++ b/config/coreboot/qemu_x86_64_12mb/target.cfg
@@ -0,0 +1,6 @@
+tree="default"
+xarch="i386-elf"
+payload_grub="y"
+payload_seabios="y"
+payload_memtest="y"
+payload_uboot_amd64="y"