diff --git a/bios/fetch-and-build-seabios.sh b/bios/fetch-and-build-seabios.sh
new file mode 100755
index 00000000..3624fe24
--- /dev/null
+++ b/bios/fetch-and-build-seabios.sh
@@ -0,0 +1,13 @@
+set -e
+git clone https://git.seabios.org/seabios.git || true
+(cd seabios && git checkout rel-1.12.1)
+
+cp seabios.config seabios/.config
+make -C seabios
+cp seabios/out/bios.bin seabios.bin
+cp seabios/out/vgabios.bin vgabios.bin
+
+cp seabios-debug.config seabios/.config
+make -C seabios
+cp seabios/out/bios.bin seabios-debug.bin
+cp seabios/out/vgabios.bin vgabios-debug.bin
diff --git a/bios/seabios-debug.bin b/bios/seabios-debug.bin
index 8bf81ad1..3a9afb31 100644
Binary files a/bios/seabios-debug.bin and b/bios/seabios-debug.bin differ
diff --git a/bios/seabios-debug.config b/bios/seabios-debug.config
new file mode 100644
index 00000000..59e4cd77
--- /dev/null
+++ b/bios/seabios-debug.config
@@ -0,0 +1,117 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# SeaBIOS Configuration
+#
+
+#
+# General Features
+#
+# CONFIG_COREBOOT is not set
+CONFIG_QEMU=y
+# CONFIG_CSM is not set
+CONFIG_QEMU_HARDWARE=y
+CONFIG_XEN=y
+CONFIG_THREADS=y
+# CONFIG_RELOCATE_INIT is not set
+# CONFIG_BOOTMENU is not set
+CONFIG_BOOTORDER=y
+CONFIG_MULTIBOOT=y
+CONFIG_ENTRY_EXTRASTACK=y
+CONFIG_MALLOC_UPPERMEMORY=y
+CONFIG_ROM_SIZE=0
+
+#
+# Hardware support
+#
+CONFIG_ATA=y
+CONFIG_ATA_DMA=y
+CONFIG_ATA_PIO32=y
+CONFIG_AHCI=y
+CONFIG_SDCARD=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_SCSI=y
+CONFIG_PVSCSI=y
+CONFIG_ESP_SCSI=y
+CONFIG_LSI_SCSI=y
+CONFIG_MEGASAS=y
+CONFIG_MPT_SCSI=y
+CONFIG_FLOPPY=y
+CONFIG_FLASH_FLOPPY=y
+# CONFIG_NVME is not set
+CONFIG_PS2PORT=y
+# CONFIG_USB is not set
+CONFIG_SERIAL=y
+# CONFIG_SERCON is not set
+CONFIG_LPT=y
+CONFIG_RTC_TIMER=y
+CONFIG_HARDWARE_IRQ=y
+CONFIG_USE_SMM=y
+CONFIG_CALL32_SMM=y
+CONFIG_MTRR_INIT=y
+CONFIG_PMTIMER=y
+CONFIG_TSC_TIMER=y
+
+#
+# BIOS interfaces
+#
+CONFIG_DRIVES=y
+CONFIG_CDROM_BOOT=y
+CONFIG_CDROM_EMU=y
+CONFIG_PCIBIOS=y
+CONFIG_APMBIOS=y
+CONFIG_PNPBIOS=y
+CONFIG_OPTIONROMS=y
+CONFIG_PMM=y
+CONFIG_BOOT=y
+CONFIG_KEYBOARD=y
+CONFIG_KBD_CALL_INT15_4F=y
+CONFIG_MOUSE=y
+CONFIG_S3_RESUME=y
+CONFIG_VGAHOOKS=y
+# CONFIG_DISABLE_A20 is not set
+# CONFIG_WRITABLE_UPPERMEMORY is not set
+CONFIG_TCGBIOS=y
+
+#
+# BIOS Tables
+#
+CONFIG_PIRTABLE=y
+CONFIG_MPTABLE=y
+# CONFIG_SMBIOS is not set
+CONFIG_ACPI=y
+CONFIG_ACPI_DSDT=y
+CONFIG_FW_ROMFILE_LOAD=y
+
+#
+# VGA ROM
+#
+# CONFIG_NO_VGABIOS is not set
+# CONFIG_VGA_STANDARD_VGA is not set
+# CONFIG_VGA_CIRRUS is not set
+CONFIG_VGA_BOCHS=y
+# CONFIG_VGA_GEODEGX2 is not set
+# CONFIG_VGA_GEODELX is not set
+# CONFIG_DISPLAY_BOCHS is not set
+# CONFIG_VGA_RAMFB is not set
+CONFIG_VGA_BOCHS_STDVGA=y
+# CONFIG_VGA_BOCHS_VMWARE is not set
+# CONFIG_VGA_BOCHS_QXL is not set
+# CONFIG_VGA_BOCHS_VIRTIO is not set
+CONFIG_BUILD_VGABIOS=y
+CONFIG_VGA_STDVGA_PORTS=y
+CONFIG_VGA_FIXUP_ASM=y
+CONFIG_VGA_ALLOCATE_EXTRA_STACK=y
+CONFIG_VGA_EXTRA_STACK_SIZE=512
+CONFIG_VGA_VBE=y
+CONFIG_VGA_PCI=y
+CONFIG_OVERRIDE_PCI_ID=y
+CONFIG_VGA_VID=0x1234
+CONFIG_VGA_DID=0x1111
+
+#
+# Debugging
+#
+CONFIG_DEBUG_LEVEL=8
+# CONFIG_DEBUG_SERIAL is not set
+# CONFIG_DEBUG_SERIAL_MMIO is not set
+CONFIG_DEBUG_IO=y
diff --git a/bios/seabios.bin b/bios/seabios.bin
index 1f4ecc0c..5c17cbd3 100644
Binary files a/bios/seabios.bin and b/bios/seabios.bin differ
diff --git a/bios/seabios.config b/bios/seabios.config
new file mode 100644
index 00000000..2be1f894
--- /dev/null
+++ b/bios/seabios.config
@@ -0,0 +1,114 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# SeaBIOS Configuration
+#
+
+#
+# General Features
+#
+# CONFIG_COREBOOT is not set
+CONFIG_QEMU=y
+# CONFIG_CSM is not set
+CONFIG_QEMU_HARDWARE=y
+CONFIG_XEN=y
+CONFIG_THREADS=y
+# CONFIG_RELOCATE_INIT is not set
+# CONFIG_BOOTMENU is not set
+CONFIG_BOOTORDER=y
+CONFIG_MULTIBOOT=y
+CONFIG_ENTRY_EXTRASTACK=y
+CONFIG_MALLOC_UPPERMEMORY=y
+CONFIG_ROM_SIZE=0
+
+#
+# Hardware support
+#
+CONFIG_ATA=y
+CONFIG_ATA_DMA=y
+CONFIG_ATA_PIO32=y
+CONFIG_AHCI=y
+CONFIG_SDCARD=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_SCSI=y
+CONFIG_PVSCSI=y
+CONFIG_ESP_SCSI=y
+CONFIG_LSI_SCSI=y
+CONFIG_MEGASAS=y
+CONFIG_MPT_SCSI=y
+CONFIG_FLOPPY=y
+CONFIG_FLASH_FLOPPY=y
+# CONFIG_NVME is not set
+CONFIG_PS2PORT=y
+# CONFIG_USB is not set
+CONFIG_SERIAL=y
+# CONFIG_SERCON is not set
+CONFIG_LPT=y
+CONFIG_RTC_TIMER=y
+CONFIG_HARDWARE_IRQ=y
+CONFIG_USE_SMM=y
+CONFIG_CALL32_SMM=y
+CONFIG_MTRR_INIT=y
+CONFIG_PMTIMER=y
+CONFIG_TSC_TIMER=y
+
+#
+# BIOS interfaces
+#
+CONFIG_DRIVES=y
+CONFIG_CDROM_BOOT=y
+CONFIG_CDROM_EMU=y
+CONFIG_PCIBIOS=y
+CONFIG_APMBIOS=y
+CONFIG_PNPBIOS=y
+CONFIG_OPTIONROMS=y
+CONFIG_PMM=y
+CONFIG_BOOT=y
+CONFIG_KEYBOARD=y
+CONFIG_KBD_CALL_INT15_4F=y
+CONFIG_MOUSE=y
+CONFIG_S3_RESUME=y
+CONFIG_VGAHOOKS=y
+# CONFIG_DISABLE_A20 is not set
+# CONFIG_WRITABLE_UPPERMEMORY is not set
+CONFIG_TCGBIOS=y
+
+#
+# BIOS Tables
+#
+CONFIG_PIRTABLE=y
+CONFIG_MPTABLE=y
+# CONFIG_SMBIOS is not set
+CONFIG_ACPI=y
+CONFIG_ACPI_DSDT=y
+CONFIG_FW_ROMFILE_LOAD=y
+
+#
+# VGA ROM
+#
+# CONFIG_NO_VGABIOS is not set
+# CONFIG_VGA_STANDARD_VGA is not set
+# CONFIG_VGA_CIRRUS is not set
+CONFIG_VGA_BOCHS=y
+# CONFIG_VGA_GEODEGX2 is not set
+# CONFIG_VGA_GEODELX is not set
+# CONFIG_DISPLAY_BOCHS is not set
+# CONFIG_VGA_RAMFB is not set
+CONFIG_VGA_BOCHS_STDVGA=y
+# CONFIG_VGA_BOCHS_VMWARE is not set
+# CONFIG_VGA_BOCHS_QXL is not set
+# CONFIG_VGA_BOCHS_VIRTIO is not set
+CONFIG_BUILD_VGABIOS=y
+CONFIG_VGA_STDVGA_PORTS=y
+CONFIG_VGA_FIXUP_ASM=y
+CONFIG_VGA_ALLOCATE_EXTRA_STACK=y
+CONFIG_VGA_EXTRA_STACK_SIZE=512
+CONFIG_VGA_VBE=y
+CONFIG_VGA_PCI=y
+CONFIG_OVERRIDE_PCI_ID=y
+CONFIG_VGA_VID=0x1234
+CONFIG_VGA_DID=0x1111
+
+#
+# Debugging
+#
+CONFIG_DEBUG_LEVEL=0
diff --git a/bios/vgabios-debug.bin b/bios/vgabios-debug.bin
index 7ef7eb82..73ec94fd 100644
Binary files a/bios/vgabios-debug.bin and b/bios/vgabios-debug.bin differ
diff --git a/bios/vgabios.bin b/bios/vgabios.bin
index b5f925e1..e1b6db46 100644
Binary files a/bios/vgabios.bin and b/bios/vgabios.bin differ