diff --git a/coreboot b/coreboot
index 7214976..d99ff72 160000
--- a/coreboot
+++ b/coreboot
@@ -1 +1 @@
-Subproject commit 7214976b606913e4598514cb0960d63d3dbc24cc
+Subproject commit d99ff72fa9907c6bd0808e41a8fce9db38c8edae
diff --git a/models/qemu/coreboot.config b/models/qemu/coreboot.config
new file mode 100644
index 0000000..ad5b4e4
--- /dev/null
+++ b/models/qemu/coreboot.config
@@ -0,0 +1,637 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# coreboot configuration
+#
+
+#
+# General setup
+#
+CONFIG_COREBOOT_BUILD=y
+CONFIG_LOCALVERSION=""
+CONFIG_CBFS_PREFIX="fallback"
+CONFIG_COMPILER_GCC=y
+# CONFIG_COMPILER_LLVM_CLANG is not set
+# CONFIG_ANY_TOOLCHAIN is not set
+CONFIG_CCACHE=y
+# CONFIG_FMD_GENPARSER is not set
+# CONFIG_UTIL_GENPARSER is not set
+# CONFIG_USE_OPTION_TABLE is not set
+CONFIG_COMPRESS_RAMSTAGE=y
+CONFIG_INCLUDE_CONFIG_FILE=y
+CONFIG_COLLECT_TIMESTAMPS=y
+# CONFIG_TIMESTAMPS_ON_CONSOLE is not set
+# CONFIG_USE_BLOBS is not set
+# CONFIG_COVERAGE is not set
+# CONFIG_UBSAN is not set
+# CONFIG_NO_RELOCATABLE_RAMSTAGE is not set
+CONFIG_RELOCATABLE_RAMSTAGE=y
+# CONFIG_UPDATE_IMAGE is not set
+# CONFIG_BOOTSPLASH_IMAGE is not set
+
+#
+# Mainboard
+#
+
+#
+# Important: Run 'make distclean' before switching boards
+#
+# CONFIG_VENDOR_ADI is not set
+# CONFIG_VENDOR_ADLINK is not set
+# CONFIG_VENDOR_ADVANSUS is not set
+# CONFIG_VENDOR_AMD 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_AVALUE is not set
+# CONFIG_VENDOR_BAP is not set
+# CONFIG_VENDOR_BIOSTAR is not set
+# CONFIG_VENDOR_CAVIUM is not set
+# CONFIG_VENDOR_COMPULAB is not set
+# CONFIG_VENDOR_ELMEX is not set
+CONFIG_VENDOR_EMULATION=y
+# CONFIG_VENDOR_ESD is not set
+# CONFIG_VENDOR_FACEBOOK is not set
+# CONFIG_VENDOR_FOXCONN is not set
+# CONFIG_VENDOR_GETAC is not set
+# CONFIG_VENDOR_GIGABYTE is not set
+# CONFIG_VENDOR_GIZMOSPHERE is not set
+# CONFIG_VENDOR_GOOGLE is not set
+# CONFIG_VENDOR_HP is not set
+# CONFIG_VENDOR_IBASE is not set
+# CONFIG_VENDOR_IEI is not set
+# CONFIG_VENDOR_INTEL is not set
+# CONFIG_VENDOR_JETWAY is not set
+# CONFIG_VENDOR_KONTRON is not set
+# CONFIG_VENDOR_LENOVO is not set
+# CONFIG_VENDOR_LIPPERT 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_PORTWELL is not set
+# CONFIG_VENDOR_PURISM is not set
+# CONFIG_VENDOR_RODA is not set
+# CONFIG_VENDOR_SAMSUNG is not set
+# CONFIG_VENDOR_SAPPHIRE is not set
+# CONFIG_VENDOR_SCALEWAY is not set
+# CONFIG_VENDOR_SIEMENS is not set
+# CONFIG_VENDOR_SIFIVE is not set
+# CONFIG_VENDOR_SUPERMICRO is not set
+# CONFIG_VENDOR_SYSTEM76 is not set
+# CONFIG_VENDOR_TI is not set
+# CONFIG_VENDOR_TYAN is not set
+# CONFIG_VENDOR_UP is not set
+# CONFIG_VENDOR_VIA is not set
+CONFIG_BOARD_SPECIFIC_OPTIONS=y
+CONFIG_MAINBOARD_DIR="emulation/qemu-q35"
+CONFIG_MAINBOARD_PART_NUMBER="QEMU x86 q35/ich9"
+CONFIG_MAX_CPUS=1
+CONFIG_CBFS_SIZE=0x800000
+CONFIG_MAINBOARD_VENDOR="Emulation"
+CONFIG_VGA_BIOS_ID="1106,3230"
+# CONFIG_ONBOARD_VGA_IS_PRIMARY is not set
+CONFIG_DIMM_SPD_SIZE=256
+CONFIG_VGA_BIOS=y
+CONFIG_MAINBOARD_SERIAL_NUMBER="123456789"
+CONFIG_VGA_BIOS_FILE="${FIRMWARE_OPEN_MODEL_DIR}/vga.rom"
+CONFIG_C_ENV_BOOTBLOCK_SIZE=0x4000
+CONFIG_MAINBOARD_SMBIOS_MANUFACTURER="Emulation"
+CONFIG_DEVICETREE="devicetree.cb"
+CONFIG_PRERAM_CBMEM_CONSOLE_SIZE=0xc00
+# CONFIG_POST_IO is not set
+CONFIG_BOOTBLOCK_MAINBOARD_INIT="mainboard/emulation/qemu-q35/bootblock.c"
+CONFIG_DCACHE_RAM_BASE=0x10000
+CONFIG_DCACHE_RAM_SIZE=0x90000
+CONFIG_MAX_REBOOT_CNT=3
+CONFIG_OVERRIDE_DEVICETREE=""
+CONFIG_FMDFILE=""
+# CONFIG_BOARD_EMULATION_QEMU_AARCH64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_ARMV7 is not set
+# CONFIG_BOARD_EMULATION_QEMU_X86_I440FX is not set
+# CONFIG_BOARD_EMULATION_QEMU_POWER8 is not set
+CONFIG_BOARD_EMULATION_QEMU_X86_Q35=y
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV64 is not set
+# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV32 is not set
+# CONFIG_BOARD_EMULATION_SPIKE_RISCV is not set
+CONFIG_BOARD_EMULATION_QEMU_X86=y
+CONFIG_DCACHE_BSP_STACK_SIZE=0x4000
+CONFIG_MMCONF_BASE_ADDRESS=0xb0000000
+# CONFIG_HAVE_INTEL_FIRMWARE is not set
+CONFIG_POST_DEVICE=y
+CONFIG_DRIVERS_UART_8250IO=y
+# CONFIG_VBOOT is not set
+CONFIG_DIMM_MAX=4
+CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME="QEMU x86 q35/ich9"
+CONFIG_CPU_ADDR_BITS=36
+CONFIG_DEFAULT_CONSOLE_LOGLEVEL=7
+# CONFIG_USBDEBUG is not set
+CONFIG_MAINBOARD_VERSION="1.0"
+# CONFIG_DRIVERS_PS2_KEYBOARD is not set
+CONFIG_DRIVERS_INTEL_WIFI=y
+# CONFIG_PCIEXP_L1_SUB_STATE is not set
+CONFIG_SMBIOS_ENCLOSURE_TYPE=0x03
+CONFIG_HEAP_SIZE=0x4000
+# CONFIG_CONSOLE_POST is not set
+CONFIG_SUBSYSTEM_VENDOR_ID=0x0000
+CONFIG_SUBSYSTEM_DEVICE_ID=0x0000
+CONFIG_BOARD_ROMSIZE_KB_2048=y
+# CONFIG_COREBOOT_ROMSIZE_KB_64 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_128 is not set
+# 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_6144 is not set
+CONFIG_COREBOOT_ROMSIZE_KB_8192=y
+# CONFIG_COREBOOT_ROMSIZE_KB_10240 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_12288 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_16384 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_32768 is not set
+# CONFIG_COREBOOT_ROMSIZE_KB_65536 is not set
+CONFIG_COREBOOT_ROMSIZE_KB=8192
+CONFIG_ROM_SIZE=0x800000
+CONFIG_HAVE_POWER_STATE_AFTER_FAILURE=y
+CONFIG_HAVE_POWER_STATE_PREVIOUS_AFTER_FAILURE=y
+CONFIG_POWER_STATE_OFF_AFTER_FAILURE=y
+# CONFIG_POWER_STATE_ON_AFTER_FAILURE is not set
+# CONFIG_POWER_STATE_PREVIOUS_AFTER_FAILURE is not set
+CONFIG_MAINBOARD_POWER_FAILURE_STATE=0
+# CONFIG_SYSTEM_TYPE_LAPTOP is not set
+# CONFIG_SYSTEM_TYPE_TABLET is not set
+# CONFIG_SYSTEM_TYPE_DETACHABLE is not set
+# CONFIG_SYSTEM_TYPE_CONVERTIBLE is not set
+# CONFIG_CBFS_AUTOGEN_ATTRIBUTES is not set
+
+#
+# Chipset
+#
+
+#
+# SoC
+#
+CONFIG_HAVE_BOOTBLOCK=y
+CONFIG_EHCI_BAR=0xfef00000
+CONFIG_ACPI_CPU_STRING="\\_PR.CP%02d"
+# CONFIG_SOC_CAVIUM_CN81XX is not set
+CONFIG_ARCH_ARMV8_EXTENSION=0
+CONFIG_STACK_SIZE=0x1000
+# CONFIG_SOC_CAVIUM_COMMON is not set
+# CONFIG_SOC_INTEL_GLK is not set
+CONFIG_X86_TOP4G_BOOTMEDIA_MAP=y
+CONFIG_ROMSTAGE_ADDR=0x2000000
+CONFIG_VERSTAGE_ADDR=0x2000000
+# CONFIG_PCIEXP_ASPM is not set
+# CONFIG_PCIEXP_COMMON_CLOCK is not set
+# CONFIG_PCIEXP_CLK_PM is not set
+CONFIG_CONSOLE_CBMEM=y
+CONFIG_UART_PCI_ADDR=0x0
+# CONFIG_SOC_MEDIATEK_MT8173 is not set
+# CONFIG_SOC_MEDIATEK_MT8183 is not set
+# CONFIG_SOC_NVIDIA_TEGRA124 is not set
+# CONFIG_SOC_NVIDIA_TEGRA210 is not set
+# CONFIG_SOC_QUALCOMM_COMMON is not set
+# CONFIG_SOC_QC_IPQ40XX is not set
+# CONFIG_SOC_QC_IPQ806X is not set
+# CONFIG_SOC_QUALCOMM_QCS405 is not set
+# CONFIG_SOC_QUALCOMM_SDM845 is not set
+# CONFIG_SOC_ROCKCHIP_RK3288 is not set
+# CONFIG_SOC_ROCKCHIP_RK3399 is not set
+# CONFIG_CPU_SAMSUNG_EXYNOS5250 is not set
+# CONFIG_CPU_SAMSUNG_EXYNOS5420 is not set
+# CONFIG_SOC_UCB_RISCV is not set
+
+#
+# CPU
+#
+CONFIG_XIP_ROM_SIZE=0x10000
+CONFIG_NUM_IPI_STARTS=2
+# CONFIG_CPU_AMD_AGESA is not set
+# CONFIG_CPU_AMD_PI is not set
+# CONFIG_CPU_ARMLTD_CORTEX_A9 is not set
+# CONFIG_SSE2 is not set
+# CONFIG_CPU_INTEL_FIRMWARE_INTERFACE_TABLE is not set
+# CONFIG_CPU_INTEL_TURBO_NOT_PACKAGE_SCOPED is not set
+CONFIG_CPU_QEMU_X86=y
+# CONFIG_CPU_TI_AM335X is not set
+# CONFIG_PARALLEL_CPU_INIT is not set
+# CONFIG_PARALLEL_MP is not set
+# CONFIG_UDELAY_LAPIC is not set
+CONFIG_UDELAY_TSC=y
+# CONFIG_TSC_CONSTANT_RATE is not set
+# CONFIG_TSC_MONOTONIC_TIMER is not set
+# CONFIG_TSC_SYNC_LFENCE is not set
+# CONFIG_TSC_SYNC_MFENCE is not set
+# CONFIG_NO_FIXED_XIP_ROM_SIZE is not set
+CONFIG_LOGICAL_CPUS=y
+CONFIG_HAVE_SMI_HANDLER=y
+# CONFIG_NO_SMM is not set
+CONFIG_SMM_ASEG=y
+# CONFIG_SMM_LAPIC_REMAP_MITIGATION is not set
+# CONFIG_SERIALIZED_SMM_INITIALIZATION is not set
+# CONFIG_X86_AMD_FIXED_MTRRS is not set
+# CONFIG_X86_AMD_INIT_SIPI is not set
+# CONFIG_MIRROR_PAYLOAD_TO_RAM_BEFORE_LOADING is not set
+# CONFIG_SOC_SETS_MSRS is not set
+CONFIG_CACHE_AS_RAM=y
+CONFIG_NO_CAR_GLOBAL_MIGRATION=y
+CONFIG_SMP=y
+# CONFIG_SUPPORT_CPU_UCODE_IN_CBFS is not set
+# CONFIG_USES_MICROCODE_HEADER_FILES is not set
+
+#
+# Northbridge
+#
+# CONFIG_NORTHBRIDGE_AMD_AGESA is not set
+# CONFIG_NORTHBRIDGE_AMD_PI is not set
+
+#
+# Southbridge
+#
+CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT="southbridge/intel/i82801ix/bootblock.c"
+# CONFIG_AMD_SB_CIMX is not set
+# CONFIG_SOUTHBRIDGE_AMD_CIMX_SB800 is not set
+# CONFIG_SOUTHBRIDGE_AMD_CIMX_SB900 is not set
+CONFIG_HPET_MIN_TICKS=0x80
+CONFIG_SOUTHBRIDGE_INTEL_COMMON=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RESET=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_PMCLIB=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_GPIO=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_SMBUS=y
+# CONFIG_SOUTHBRIDGE_INTEL_COMMON_SPI is not set
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_PIRQ_ACPI_GEN=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_RCBA_PIRQ=y
+# CONFIG_HAVE_INTEL_CHIPSET_LOCKDOWN is not set
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_SMM=y
+CONFIG_INTEL_DESCRIPTOR_MODE_CAPABLE=y
+CONFIG_INTEL_DESCRIPTOR_MODE_REQUIRED=y
+CONFIG_SOUTHBRIDGE_INTEL_COMMON_WATCHDOG=y
+CONFIG_SOUTHBRIDGE_INTEL_I82801IX=y
+
+#
+# Super I/O
+#
+# CONFIG_SUPERIO_ASPEED_AST2400 is not set
+# CONFIG_SUPERIO_ASPEED_COMMON_PRE_RAM is not set
+# CONFIG_SUPERIO_FINTEK_FAN_CONTROL is not set
+
+#
+# Embedded Controllers
+#
+# CONFIG_EC_GOOGLE_WILCO is not set
+# CONFIG_CAVIUM_BDK is not set
+# CONFIG_MAINBOARD_HAS_CHROMEOS is not set
+# CONFIG_GOOGLE_SMBIOS_MAINBOARD_VERSION is not set
+# CONFIG_UEFI_2_4_BINDING is not set
+# CONFIG_UDK_2015_BINDING is not set
+# CONFIG_UDK_2017_BINDING is not set
+CONFIG_UDK_2013_VERSION=2013
+CONFIG_UDK_2015_VERSION=2015
+CONFIG_UDK_2017_VERSION=2017
+CONFIG_UDK_VERSION=2013
+# CONFIG_USE_SIEMENS_HWILIB is not set
+# CONFIG_ARCH_ARM is not set
+# CONFIG_ARCH_BOOTBLOCK_ARM is not set
+# CONFIG_ARCH_VERSTAGE_ARM is not set
+# CONFIG_ARCH_ROMSTAGE_ARM is not set
+# CONFIG_ARCH_RAMSTAGE_ARM is not set
+# CONFIG_ARCH_BOOTBLOCK_ARMV4 is not set
+# CONFIG_ARCH_VERSTAGE_ARMV4 is not set
+# CONFIG_ARCH_ROMSTAGE_ARMV4 is not set
+# CONFIG_ARCH_RAMSTAGE_ARMV4 is not set
+# CONFIG_ARCH_BOOTBLOCK_ARMV7 is not set
+# CONFIG_ARCH_VERSTAGE_ARMV7 is not set
+# CONFIG_ARCH_ROMSTAGE_ARMV7 is not set
+# CONFIG_ARCH_RAMSTAGE_ARMV7 is not set
+# CONFIG_ARCH_BOOTBLOCK_ARMV7_M is not set
+# CONFIG_ARCH_VERSTAGE_ARMV7_M is not set
+# CONFIG_ARCH_BOOTBLOCK_ARMV7_R is not set
+# CONFIG_ARCH_VERSTAGE_ARMV7_R is not set
+# CONFIG_ARCH_ROMSTAGE_ARMV7_R is not set
+# CONFIG_ARCH_RAMSTAGE_ARMV7_R is not set
+# CONFIG_ARM_LPAE is not set
+# CONFIG_ARCH_ARM64 is not set
+# CONFIG_ARCH_BOOTBLOCK_ARM64 is not set
+# CONFIG_ARCH_VERSTAGE_ARM64 is not set
+# CONFIG_ARCH_ROMSTAGE_ARM64 is not set
+# CONFIG_ARCH_RAMSTAGE_ARM64 is not set
+# CONFIG_ARCH_BOOTBLOCK_ARMV8_64 is not set
+# CONFIG_ARCH_VERSTAGE_ARMV8_64 is not set
+# CONFIG_ARCH_ROMSTAGE_ARMV8_64 is not set
+# CONFIG_ARCH_RAMSTAGE_ARMV8_64 is not set
+# CONFIG_ARM64_USE_ARCH_TIMER is not set
+# CONFIG_ARM64_A53_ERRATUM_843419 is not set
+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_BOOTBLOCK_X86_64 is not set
+# CONFIG_ARCH_VERSTAGE_X86_64 is not set
+# CONFIG_ARCH_ROMSTAGE_X86_64 is not set
+# CONFIG_ARCH_POSTCAR_X86_64 is not set
+# CONFIG_ARCH_RAMSTAGE_X86_64 is not set
+# CONFIG_USE_MARCH_586 is not set
+# CONFIG_AP_IN_SIPI_WAIT is not set
+# CONFIG_SIPI_VECTOR_IN_ROM is not set
+CONFIG_RAMBASE=0xe00000
+CONFIG_RAMTOP=0x1000000
+# CONFIG_CBMEM_TOP_BACKUP is not set
+# CONFIG_EARLY_EBDA_INIT is not set
+CONFIG_PC80_SYSTEM=y
+# CONFIG_BOOTBLOCK_DEBUG_SPINLOOP is not set
+# CONFIG_BOOTBLOCK_SAVE_BIST_AND_TIMESTAMP is not set
+# CONFIG_HAVE_CMOS_DEFAULT is not set
+CONFIG_IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS=y
+# CONFIG_HPET_ADDRESS_OVERRIDE is not set
+CONFIG_HPET_ADDRESS=0xfed00000
+CONFIG_ID_SECTION_OFFSET=0x80
+CONFIG_POSTCAR_STAGE=y
+# CONFIG_VERSTAGE_DEBUG_SPINLOOP is not set
+# CONFIG_ROMSTAGE_DEBUG_SPINLOOP is not set
+CONFIG_ACPI_HAVE_PCAT_8259=y
+# CONFIG_COLLECT_TIMESTAMPS_NO_TSC is not set
+CONFIG_COLLECT_TIMESTAMPS_TSC=y
+# CONFIG_PAGING_IN_CACHE_AS_RAM is not set
+# CONFIG_IDT_IN_EVERY_STAGE is not set
+CONFIG_HAVE_CF9_RESET=y
+# CONFIG_PIRQ_ROUTE is not set
+
+#
+# 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_HAS_LIBGFXINIT is not set
+CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y
+# CONFIG_MULTIPLE_VGA_ADAPTERS is not set
+
+#
+# Display
+#
+# CONFIG_VGA_TEXT_FRAMEBUFFER is not set
+CONFIG_GENERIC_LINEAR_FRAMEBUFFER=y
+CONFIG_LINEAR_FRAMEBUFFER=y
+# CONFIG_SMBUS_HAS_AUX_CHANNELS is not set
+CONFIG_PCI=y
+# CONFIG_NO_MMCONF_SUPPORT is not set
+CONFIG_MMCONF_SUPPORT=y
+# CONFIG_HYPERTRANSPORT_PLUGIN_SUPPORT is not set
+CONFIG_PCIX_PLUGIN_SUPPORT=y
+CONFIG_CARDBUS_PLUGIN_SUPPORT=y
+# CONFIG_AZALIA_PLUGIN_SUPPORT is not set
+CONFIG_PCIEXP_PLUGIN_SUPPORT=y
+# CONFIG_EARLY_PCI_BRIDGE is not set
+# CONFIG_VGA_BIOS_DGPU is not set
+# CONFIG_SOFTWARE_I2C is not set
+
+#
+# Generic Drivers
+#
+# CONFIG_DRIVERS_AS3722_RTC is not set
+CONFIG_CRB_TPM_BASE_ADDRESS=0xfed40000
+# CONFIG_MAINBOARD_HAS_CRB_TPM is not set
+# CONFIG_GIC is not set
+# CONFIG_IPMI_KCS is not set
+# CONFIG_DRIVERS_LENOVO_WACOM is not set
+# CONFIG_RT8168_GET_MAC_FROM_VPD is not set
+# CONFIG_RT8168_SET_LED_MODE is not set
+# CONFIG_SMMSTORE_IN_CBFS is not set
+# CONFIG_SPI_FLASH is not set
+# CONFIG_HAVE_SPI_CONSOLE_SUPPORT is not set
+CONFIG_DRIVERS_UART=y
+# CONFIG_DRIVERS_UART_8250IO_SKIP_INIT is not set
+# CONFIG_NO_UART_ON_SUPERIO is not set
+# CONFIG_UART_OVERRIDE_INPUT_CLOCK_DIVIDER is not set
+# CONFIG_UART_OVERRIDE_REFCLK is not set
+# CONFIG_DRIVERS_UART_8250MEM is not set
+# CONFIG_DRIVERS_UART_8250MEM_32 is not set
+# CONFIG_HAVE_UART_SPECIAL is not set
+# CONFIG_DRIVERS_UART_OXPCIE is not set
+# CONFIG_DRIVERS_UART_PL011 is not set
+# CONFIG_UART_USE_REFCLK_AS_INPUT_CLOCK is not set
+CONFIG_HAVE_USBDEBUG=y
+CONFIG_HAVE_USBDEBUG_OPTIONS=y
+# CONFIG_VPD is not set
+CONFIG_DRIVERS_GENERIC_WIFI=y
+# CONFIG_USE_SAR is not set
+# CONFIG_DRIVERS_AMD_PI is not set
+CONFIG_DRIVERS_EMULATION_QEMU_BOCHS=y
+CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_XRES=1024
+CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_YRES=768
+# CONFIG_SMBIOS_PROVIDED_BY_MOBO is not set
+# CONFIG_DRIVERS_I2C_MAX98373 is not set
+# CONFIG_DRIVERS_I2C_MAX98927 is not set
+# CONFIG_DRIVERS_I2C_PCA9538 is not set
+# CONFIG_DRIVERS_I2C_PCF8523 is not set
+# CONFIG_DRIVERS_I2C_RT5663 is not set
+# CONFIG_DRIVERS_I2C_RTD2132 is not set
+# CONFIG_DRIVERS_I2C_RX6110SA is not set
+# CONFIG_DRIVERS_I2C_SX9310 is not set
+# CONFIG_MAINBOARD_HAS_I2C_TPM_ATMEL is not set
+# CONFIG_MAINBOARD_HAS_I2C_TPM_CR50 is not set
+# CONFIG_MAINBOARD_HAS_I2C_TPM_GENERIC is not set
+# CONFIG_PLATFORM_USES_FSP1_0 is not set
+# CONFIG_PLATFORM_USES_FSP2_0 is not set
+# CONFIG_PLATFORM_USES_FSP2_1 is not set
+# CONFIG_INTEL_DDI is not set
+# CONFIG_INTEL_EDID is not set
+# CONFIG_INTEL_INT15 is not set
+# CONFIG_INTEL_GMA_ACPI is not set
+# CONFIG_INTEL_GMA_SSC_ALTERNATE_REF is not set
+# CONFIG_INTEL_GMA_SWSMISCI is not set
+# CONFIG_DRIVER_INTEL_I210 is not set
+# CONFIG_DRIVERS_INTEL_MIPI_CAMERA is not set
+# CONFIG_HAVE_INTEL_PTT is not set
+# CONFIG_DRIVERS_LENOVO_HYBRID_GRAPHICS is not set
+# CONFIG_DRIVER_MAXIM_MAX77686 is not set
+# CONFIG_DRIVER_PARADE_PS8625 is not set
+# CONFIG_DRIVER_PARADE_PS8640 is not set
+# CONFIG_UDELAY_IO is not set
+# CONFIG_UDELAY_TIMER2 is not set
+CONFIG_DRIVERS_MC146818=y
+# CONFIG_LPC_TPM is not set
+# CONFIG_MAINBOARD_HAS_LPC_TPM is not set
+CONFIG_VGA=y
+# CONFIG_DRIVERS_RICOH_RCE822 is not set
+# CONFIG_DRIVER_SIEMENS_NC_FPGA is not set
+# CONFIG_NC_FPGA_NOTIFY_CB_READY is not set
+# CONFIG_DRIVERS_SIL_3114 is not set
+# CONFIG_MAINBOARD_HAS_SPI_TPM_CR50 is not set
+# CONFIG_DRIVER_TI_TPS65090 is not set
+# CONFIG_DRIVERS_TI_TPS65913 is not set
+# CONFIG_DRIVERS_TI_TPS65913_RTC is not set
+# CONFIG_DRIVERS_USB_ACPI is not set
+# CONFIG_COMMONLIB_STORAGE is not set
+
+#
+# Security
+#
+
+#
+# Verified Boot (vboot)
+#
+
+#
+# Trusted Platform Module
+#
+CONFIG_USER_NO_TPM=y
+
+#
+# Memory initialization
+#
+CONFIG_PLATFORM_HAS_DRAM_CLEAR=y
+# CONFIG_SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT is not set
+# CONFIG_ACPI_SATA_GENERATOR is not set
+CONFIG_ACPI_INTEL_HARDWARE_SLEEP_VALUES=y
+# CONFIG_ACPI_AMD_HARDWARE_SLEEP_VALUES is not set
+# CONFIG_BOOT_DEVICE_NOT_SPI_FLASH is not set
+CONFIG_BOOT_DEVICE_SPI_FLASH=y
+CONFIG_BOOT_DEVICE_MEMORY_MAPPED=y
+# CONFIG_BOOT_DEVICE_SUPPORTS_WRITES is not set
+# CONFIG_RTC is not set
+
+#
+# Console
+#
+CONFIG_BOOTBLOCK_CONSOLE=y
+CONFIG_POSTCAR_CONSOLE=y
+CONFIG_SQUELCH_EARLY_SMP=y
+# CONFIG_CONSOLE_SERIAL is not set
+# 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 is not set
+# 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_SPKMODEM is not set
+# CONFIG_CONSOLE_NE2K is not set
+CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x20000
+# CONFIG_CONSOLE_CBMEM_DUMP_TO_UART is not set
+# CONFIG_CONSOLE_SPI_FLASH 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=y
+# 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 is not set
+# CONFIG_NO_POST is not set
+# 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_NO_EARLY_BOOTBLOCK_POSTCODES is not set
+CONFIG_HWBASE_DEBUG_CB=y
+# CONFIG_HAVE_ACPI_RESUME is not set
+# CONFIG_ACPI_HUGE_LOWMEM_BACKUP is not set
+# CONFIG_HAVE_ROMSTAGE_CONSOLE_SPINLOCK is not set
+# CONFIG_HAVE_ROMSTAGE_NVRAM_CBFS_SPINLOCK is not set
+# CONFIG_HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK is not set
+CONFIG_NO_MONOTONIC_TIMER=y
+CONFIG_HAVE_OPTION_TABLE=y
+# CONFIG_PCI_IO_CFG_EXT is not set
+CONFIG_IOAPIC=y
+CONFIG_USE_WATCHDOG_ON_BOOT=y
+# CONFIG_GFXUMA is not set
+CONFIG_HAVE_ACPI_TABLES=y
+# CONFIG_COMMON_FADT is not set
+# CONFIG_ACPI_NHLT is not set
+
+#
+# System tables
+#
+# CONFIG_GENERATE_MP_TABLE is not set
+# CONFIG_GENERATE_PIRQ_TABLE is not set
+CONFIG_GENERATE_SMBIOS_TABLES=y
+
+#
+# Payload
+#
+# CONFIG_PAYLOAD_NONE is not set
+# CONFIG_PAYLOAD_ELF is not set
+# CONFIG_PAYLOAD_BAYOU is not set
+# CONFIG_PAYLOAD_FILO is not set
+# CONFIG_PAYLOAD_GRUB2 is not set
+# CONFIG_PAYLOAD_LINUXBOOT is not set
+# CONFIG_PAYLOAD_SEABIOS is not set
+# CONFIG_PAYLOAD_UBOOT is not set
+# CONFIG_PAYLOAD_YABITS is not set
+# CONFIG_PAYLOAD_LINUX is not set
+CONFIG_PAYLOAD_TIANOCORE=y
+CONFIG_PAYLOAD_FILE="$(FIRMWARE_OPEN_UEFIPAYLOAD)"
+CONFIG_PAYLOAD_OPTIONS=""
+# CONFIG_PXE is not set
+CONFIG_TIANOCORE_STABLE=y
+# CONFIG_TIANOCORE_REVISION is not set
+# CONFIG_TIANOCORE_TARGET_IA32 is not set
+CONFIG_TIANOCORE_TARGET_X64=y
+# CONFIG_TIANOCORE_DEBUG is not set
+CONFIG_TIANOCORE_RELEASE=y
+CONFIG_TIANOCORE_USE_8254_TIMER=y
+# CONFIG_TIANOCORE_BOOTSPLASH_IMAGE is not set
+CONFIG_COMPRESSED_PAYLOAD_LZMA=y
+# CONFIG_COMPRESSED_PAYLOAD_LZ4 is not set
+# CONFIG_PAYLOAD_IS_FLAT_BINARY is not set
+CONFIG_COMPRESS_SECONDARY_PAYLOAD=y
+
+#
+# Secondary Payloads
+#
+# CONFIG_COREINFO_SECONDARY_PAYLOAD is not set
+# CONFIG_MEMTEST_SECONDARY_PAYLOAD is not set
+# CONFIG_NVRAMCUI_SECONDARY_PAYLOAD is not set
+# CONFIG_TINT_SECONDARY_PAYLOAD is not set
+
+#
+# Debugging
+#
+
+#
+# CPU Debug Settings
+#
+# CONFIG_DEBUG_SMM_RELOCATION is not set
+
+#
+# General Debug Settings
+#
+# CONFIG_FATAL_ASSERTS is not set
+# CONFIG_DEBUG_CBFS is not set
+# CONFIG_HAVE_DEBUG_RAM_SETUP is not set
+CONFIG_HAVE_DEBUG_SMBUS=y
+# CONFIG_DEBUG_SMBUS is not set
+# CONFIG_DEBUG_SMI is not set
+# CONFIG_DEBUG_MALLOC is not set
+# CONFIG_DEBUG_ACPI is not set
+# CONFIG_DEBUG_CONSOLE_INIT is not set
+# CONFIG_TRACE is not set
+# CONFIG_DEBUG_BOOT_STATE is not set
+# CONFIG_DEBUG_ADA_CODE is not set
+# CONFIG_HAVE_EM100_SUPPORT is not set
+# CONFIG_ENABLE_APIC_EXT_ID is not set
+CONFIG_WARNINGS_ARE_ERRORS=y
+# CONFIG_POWER_BUTTON_DEFAULT_ENABLE is not set
+# CONFIG_POWER_BUTTON_DEFAULT_DISABLE is not set
+# CONFIG_POWER_BUTTON_FORCE_ENABLE is not set
+# CONFIG_POWER_BUTTON_FORCE_DISABLE is not set
+# CONFIG_POWER_BUTTON_IS_OPTIONAL is not set
+# CONFIG_REG_SCRIPT is not set
+# CONFIG_NO_XIP_EARLY_STAGES is not set
+# CONFIG_EARLY_CBMEM_LIST is not set
+CONFIG_RELOCATABLE_MODULES=y
+CONFIG_NO_STAGE_CACHE=y
+CONFIG_C_ENVIRONMENT_BOOTBLOCK=y
+CONFIG_HAVE_ROMSTAGE=y
+CONFIG_HAVE_POSTCAR=y
+CONFIG_HAVE_RAMSTAGE=y
diff --git a/models/qemu/vga.rom b/models/qemu/vga.rom
new file mode 100644
index 0000000..761509a
--- /dev/null
+++ b/models/qemu/vga.rom
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:65e444e3099987476cbf77c055d3bdf792eb57d486631f7f7b83a23fd632d55d
+size 38400
diff --git a/scripts/build.sh b/scripts/build.sh
index 8b339c6..69069e5 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -25,25 +25,35 @@ mkdir -p "${BUILD}"
 UEFIPAYLOAD="${BUILD}/UEFIPAYLOAD.fd"
 COREBOOT="${BUILD}/coreboot.rom"
 USB="${BUILD}/usb.img"
+EDK2_ARGS=(
+    -D USE_HPET_TIMER=TRUE
+    -D SOURCE_DEBUG_ENABLE=FALSE
+)
 
 # Rebuild firmware-setup (used by edk2)
 touch apps/firmware-setup/Cargo.toml
 make -C apps/firmware-setup
+EDK2_ARGS+=(
+    -D FIRMWARE_OPEN_FIRMWARE_SETUP="firmware-setup/firmware-setup.inf"
+)
 
 # Rebuild gop-policy (used by edk2)
-touch apps/gop-policy/Cargo.toml
-FIRMWARE_OPEN_VBT="${MODEL_DIR}/vbt.rom" \
-    make -C apps/gop-policy
+if [ -e "${MODEL_DIR}/IntelGopDriver.inf" -a -e "${MODEL_DIR}/vbt.rom" ]
+then
+    touch apps/gop-policy/Cargo.toml
+    FIRMWARE_OPEN_VBT="${MODEL_DIR}/vbt.rom" \
+        make -C apps/gop-policy
+    EDK2_ARGS+=(
+        -D FIRMWARE_OPEN_GOP_POLICY="gop-policy/gop-policy.inf"
+        -D FIRMWARE_OPEN_GOP="IntelGopDriver.inf"
+    )
+fi
 
 # Rebuild CorebootPayloadPkg using edk2
 PACKAGES_PATH="${MODEL_DIR}:$(realpath edk2-platforms):$(realpath apps)" \
     ./scripts/_build/edk2.sh \
         "${UEFIPAYLOAD}" \
-        -D USE_HPET_TIMER=TRUE \
-        -D SOURCE_DEBUG_ENABLE=FALSE \
-        -D FIRMWARE_OPEN_FIRMWARE_SETUP="firmware-setup/firmware-setup.inf" \
-        -D FIRMWARE_OPEN_GOP_POLICY="gop-policy/gop-policy.inf" \
-        -D FIRMWARE_OPEN_GOP="IntelGopDriver.inf"
+        "${EDK2_ARGS[@]}"
 
 # Rebuild coreboot
 FIRMWARE_OPEN_MODEL_DIR="${MODEL_DIR}" \
@@ -60,8 +70,13 @@ pushd apps/firmware-update >/dev/null
   make "build/x86_64-efi-pe/boot.img"
   cp -v "build/x86_64-efi-pe/boot.img" "${USB}.partial"
 popd >/dev/null
+
+# Copy firmware to USB image
 mmd -i "${USB}.partial@@1M" "::${BASEDIR}/firmware"
 mcopy -i "${USB}.partial@@1M" "${COREBOOT}" "::${BASEDIR}/firmware/firmware.rom"
-mcopy -i "${USB}.partial@@1M" "${MODEL_DIR}/ec.rom" "::${BASEDIR}/firmware/ec.rom"
-mcopy -i "${USB}.partial@@1M" "${MODEL_DIR}/uecflash.efi" "::${BASEDIR}/firmware/uecflash.efi"
+if [ -e "${MODEL_DIR}/ec.rom" -a -e "${MODEL_DIR}/uecflash.efi" ]
+then
+    mcopy -i "${USB}.partial@@1M" "${MODEL_DIR}/ec.rom" "::${BASEDIR}/firmware/ec.rom"
+    mcopy -i "${USB}.partial@@1M" "${MODEL_DIR}/uecflash.efi" "::${BASEDIR}/firmware/uecflash.efi"
+fi
 mv -v "${USB}.partial" "${USB}"
diff --git a/scripts/qemu.sh b/scripts/qemu.sh
new file mode 100755
index 0000000..971bb0a
--- /dev/null
+++ b/scripts/qemu.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -e
+
+# if [ -z "$1" ]
+# then
+#   echo "$0 [model]" >&2
+#   exit 1
+# fi
+# MODEL="$1"
+MODEL="qemu"
+
+if [ ! -d "models/${MODEL}" ]
+then
+  echo "model '${MODEL}' not found" >&2
+  exit 1
+fi
+MODEL_DIR="$(realpath "models/${MODEL}")"
+
+kvm -M q35 -m 1024 -vga std \
+    -bios "build/${MODEL}/coreboot.rom" \
+    -chardev stdio,id=debug -device isa-debugcon,iobase=0x402,chardev=debug \
+    "$@"