create virtio-x86 device type

layers/meta-balena-genericx86/conf/machine/virtio-x86.conf

@@ -0,0 +1,9 @@
+#@TYPE: Machine
+##@NAME: virtio-x86
+##@DESCRIPTION: Machine configuration for an x86 device with minimal driver support
+
+MACHINEOVERRIDES = "genericx86:${MACHINE}"
+
+DEFAULTTUNE ?= "i586"
+require conf/machine/include/x86/tune-core2.inc
+require conf/machine/include/genericx86-common.inc

layers/meta-balena-genericx86/conf/samples/local.conf.sample

@@ -3,6 +3,7 @@
 #MACHINE ?= "genericx86-64-ext"
 #MACHINE ?= "surface-go"
 #MACHINE ?= "surface-pro-6"
+#MACHINE ?= "virtio-x86"
 
 # More info meta-resin/README.md
 #TARGET_REPOSITORY ?= ""

layers/meta-balena-genericx86/recipes-core/images/balena-image.bbappend

@@ -10,3 +10,4 @@ IMAGE_INSTALL:append:genericx86-64-ext =" \
 "
 
 IMAGE_ROOTFS_SIZE:genericx86-64-ext = "1024000"
+IMAGE_ROOTFS_SIZE:virtio-x86 = "1024000"

layers/meta-balena-genericx86/recipes-core/images/balena-image.inc

@@ -21,6 +21,13 @@ BALENA_BOOT_PARTITION_FILES = " \
     grub_extraenv:/EFI/BOOT/grub_extraenv \
     "
 
+# virtio-x86 only supports PC/MBR booting
+BALENA_IMAGE_BOOTLOADER:remove:virtio-x86 = "grub-efi"
+BALENA_BOOT_PARTITION_FILES:remove:x86 = " \
+    grub-efi-bootx64.efi:/EFI/BOOT/bootx64.efi \
+    grub/x86_64-efi:/EFI/BOOT/x86_64-efi/ \
+    "
+
 write_mbr() {
     # Write MBR with first stage bootloader
     dd if=${DEPLOY_DIR_IMAGE}/grub/boot.img of=${BALENA_RAW_IMG} conv=notrunc bs=1

layers/meta-balena-genericx86/recipes-core/packagegroups/packagegroup-balena-connectivity.bbappend

@@ -113,6 +113,42 @@ CONNECTIVITY_FIRMWARES:remove:surface-pro-6 = " \
     linux-firmware-wl18xx \
 "
 
+CONNECTIVITY_FIRMWARES:remove:virtio-x86 = " \
+    linux-firmware-bcm43455 \
+    linux-firmware-ibt-11-5 \
+    linux-firmware-ibt-12-16 \
+    linux-firmware-ibt-18-16-1 \
+    linux-firmware-ibt-19-0-4 \
+    linux-firmware-ibt-hw-37-7 \
+    linux-firmware-ibt-hw-37-8 \
+    linux-firmware-iwlwifi-3168 \
+    linux-firmware-iwlwifi-9000 \
+    linux-firmware-iwlwifi-9260 \
+    linux-firmware-iwlwifi-qu-b0-hr-b0 \
+    linux-firmware-pcie8897 \
+    linux-firmware-rtl8723 \
+    linux-firmware-rtl8821 \
+    linux-firmware-rtl8723b-bt \
+    linux-firmware-ralink-nic \
+    linux-firmware-ath9k \
+    linux-firmware-ralink \
+    linux-firmware-rtl8192cu \
+    linux-firmware-rtl8192su \
+    linux-firmware-bcm43143 \
+    linux-firmware-iwlwifi-135-6 \
+    linux-firmware-iwlwifi-3160 \
+    linux-firmware-iwlwifi-6000-4 \
+    linux-firmware-iwlwifi-6000g2a-6 \
+    linux-firmware-iwlwifi-6000g2b-6 \
+    linux-firmware-iwlwifi-6050-5 \
+    linux-firmware-iwlwifi-7260 \
+    linux-firmware-iwlwifi-7265 \
+    linux-firmware-iwlwifi-7265d \
+    linux-firmware-iwlwifi-8000c \
+    linux-firmware-iwlwifi-8265 \
+    linux-firmware-rtl8188eu \
+    linux-firmware-wl18xx \
+"
 CONNECTIVITY_FIRMWARES:remove_surface-pro-6 = " \
     linux-firmware-iwlwifi-quz-a0-hr-b0 \
     linux-firmware-iwlwifi-quz-a0-jf-b0 \
@@ -134,6 +170,8 @@ CONNECTIVITY_MODULES =+ " \
 "
 
 CONNECTIVITY_MODULES:remove:surface-go = "rtl8812au rtl8812bu"
+CONNECTIVITY_MODULES:remove:virtio-x86 = "rtl8812au rtl8812bu"
+CONNECTIVITY_FIRMWARES:virtio-x86 = ""
 
 # we need to clean-up rootfs space so let's remove some unused firmware
 CONNECTIVITY_FIRMWARES:remove = "linux-firmware-wl18xx"

layers/meta-balena-genericx86/recipes-kernel/linux/linux-yocto_%.bbappend

@@ -19,6 +19,21 @@ SRC_URI:append:genericx86-64-ext = " \
     file://defconfig \
 "
 
+SRC_URI:append:virtio-x86 = " \
+    file://defconfig \
+"
+
+BALENA_CONFIGS:remove:virtio-x86 = " \
+    brcmfmac \
+    ralink \
+    rtl8192cu \
+    r8188eu \
+    hid-multitouch \
+    apple_hfs \
+    mdraid \
+    dmcrypt \
+"
+
 do_kernel_configme[depends] += "virtual/${TARGET_PREFIX}binutils:do_populate_sysroot"
 do_kernel_configme[depends] += "virtual/${TARGET_PREFIX}gcc:do_populate_sysroot"
 do_kernel_configme[depends] += "bc-native:do_populate_sysroot bison-native:do_populate_sysroot"
@@ -71,6 +86,7 @@ BALENA_CONFIGS[nvme] = " \
 # Support Intel wrieless LAN adapter
 #
 BALENA_CONFIGS:append = " iwlwifi"
+BALENA_CONFIGS:remove:virtio-x86 = "iwlwifi"
 BALENA_CONFIGS_DEPS[iwlwifi] = " \
     CONFIG_PCI=m \
     CONFIG_MAC80211=m \
@@ -190,6 +206,7 @@ BALENA_CONFIGS:append:genericx86-64-ext = " aufs"
 
 # Add CAN support (requested by customer)
 BALENA_CONFIGS:append = " enable_can"
+BALENA_CONFIGS:remove:virtio-x86 = "enable_can"
 BALENA_CONFIGS[enable_can] = " \
     CONFIG_CAN=m \
     CONFIG_CAN_DEV=m \
@@ -198,6 +215,7 @@ BALENA_CONFIGS[enable_can] = " \
 "
 
 BALENA_CONFIGS:append = " huawei_modems"
+BALENA_CONFIGS:remove:virtio-x86 = "huawei_modems"
 BALENA_CONFIGS_DEPS[huawei_modems] = " \
     CONFIG_USB_SERIAL_OPTION=m \
     CONFIG_USB_USBNET=m \
@@ -285,6 +303,7 @@ BALENA_CONFIGS[uinput] = " \
 "
 
 BALENA_CONFIGS:append = " ath10k_pci"
+BALENA_CONFIGS:remove:virtio-x86 = "ath10k_pci"
 BALENA_CONFIGS_DEPS[ath10k_pci] = " \
     CONFIG_ATH10K=m \
 "
@@ -293,6 +312,7 @@ BALENA_CONFIGS[ath10k_pci] = " \
 "
 
 BALENA_CONFIGS:append = " mmc_realtek_pci"
+BALENA_CONFIGS:remove:virtio-x86 = "mmc_realtek_pci"
 BALENA_CONFIGS_DEPS[mmc_realtek_pci] = " \
     CONFIG_MISC_RTSX_PCI=m \
 "
@@ -316,6 +336,7 @@ BALENA_CONFIGS_DEPS[touchscreen_surfaces] = " \
 "
 
 BALENA_CONFIGS:append = " tpm"
+BALENA_CONFIGS:remove:virtio-x86 = "tpm"
 BALENA_CONFIGS_DEPS[tpm] = " \
     CONFIG_HW_RANDOM_TPM=y \
     CONFIG_SECURITYFS=y \

layers/meta-balena-genericx86/recipes-kernel/linux/virtio-x86/defconfig

@@ -0,0 +1,129 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_KERNEL_ZSTD=y
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+# CONFIG_PREEMPT_DYNAMIC is not set
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_MISC=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_INITRAMFS_PRESERVE_MTIME is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_MULTIUSER is not set
+# CONFIG_SGETMASK_SYSCALL is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_FHANDLE is not set
+# CONFIG_POSIX_TIMERS is not set
+# CONFIG_PRINTK is not set
+# CONFIG_BUG is not set
+# CONFIG_PCSPKR_PLATFORM is not set
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_SHMEM is not set
+# CONFIG_AIO is not set
+# CONFIG_IO_URING is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+# CONFIG_MEMBARRIER is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_RSEQ is not set
+CONFIG_EMBEDDED=y
+# CONFIG_64BIT is not set
+# CONFIG_X86_EXTENDED_PLATFORM is not set
+# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
+CONFIG_X86_GENERIC=y
+CONFIG_PROCESSOR_SELECT=y
+# CONFIG_DMI is not set
+# CONFIG_X86_MCE is not set
+# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
+# CONFIG_X86_IOPL_IOPERM is not set
+# CONFIG_MICROCODE is not set
+CONFIG_NOHIGHMEM=y
+# CONFIG_MTRR is not set
+# CONFIG_X86_UMIP is not set
+# CONFIG_RELOCATABLE is not set
+# CONFIG_MODIFY_LDT_SYSCALL is not set
+# CONFIG_SPECULATION_MITIGATIONS is not set
+# CONFIG_SUSPEND is not set
+# CONFIG_VIRTUALIZATION is not set
+# CONFIG_SECCOMP is not set
+# CONFIG_STACKPROTECTOR is not set
+# CONFIG_COMPAT_32BIT_TIME is not set
+# CONFIG_RANDOMIZE_KSTACK_OFFSET is not set
+# CONFIG_GCC_PLUGINS is not set
+# CONFIG_COREDUMP is not set
+CONFIG_SLUB_TINY=y
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_ZONE_DMA is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SECRETMEM is not set
+CONFIG_NET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_NET_IPIP=y
+CONFIG_BRIDGE=y
+CONFIG_PCI=y
+CONFIG_DEVTMPFS=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_FIRMWARE_MEMMAP is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_NETDEVICES=y
+CONFIG_VETH=y
+CONFIG_VIRTIO_NET=y
+CONFIG_SERIAL_8250=y
+CONFIG_VIRTIO_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_DEVMEM is not set
+# CONFIG_HWMON is not set
+CONFIG_DRM=y
+CONFIG_DRM_QXL=y
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PCI=y
+CONFIG_MMC_SDHCI_ACPI=y
+CONFIG_RTC_CLASS=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_INPUT=y
+CONFIG_VIRTIO_MMIO=y
+# CONFIG_VHOST_MENU is not set
+# CONFIG_SURFACE_PLATFORMS is not set
+# CONFIG_X86_PLATFORM_DEVICES is not set
+CONFIG_VIRTIO_IOMMU=y
+CONFIG_EXT4_FS=y
+# CONFIG_FILE_LOCKING is not set
+CONFIG_FANOTIFY=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_VIRTIO_FS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_ISO9660_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+# CONFIG_SYSFS is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+# CONFIG_DEBUG_MISC is not set
+# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
+# CONFIG_FTRACE is not set
+# CONFIG_X86_VERBOSE_BOOTUP is not set
+# CONFIG_EARLY_PRINTK is not set
+# CONFIG_X86_DEBUG_FPU is not set
+CONFIG_UNWINDER_GUESS=y
+# CONFIG_RUNTIME_TESTING_MENU is not set

virtio-x86.coffee

@@ -0,0 +1,28 @@
+deviceTypesCommon = require '@resin.io/device-types/common'
+{ networkOptions, commonImg, instructions } = deviceTypesCommon
+
+module.exports =
+	version: 1
+	slug: 'intel-nuc'
+	aliases: [ 'virtio-x86' ]
+	name: 'Virtio x86'
+	arch: 'i386'
+	state: 'new'
+
+	yocto:
+		machine: 'virtio-x86'
+		image: 'balena-image'
+		fstype: 'balenaos-img'
+		version: 'yocto-honister'
+		deployArtifact: 'balena-image-virtio-x86.balenaos-img'
+		compressed: true
+
+	configuration:
+		config:
+			partition:
+				primary: 1
+			path: '/config.json'
+
+	options: [ networkOptions.group ]
+
+	initialization: commonImg.initialization