Add new boot.cmd.xen to u-boot-xlnx-scr bbappend to enable Xen support for ZynqMP and Versal devices.
User can enable xen u-boot script by adding below variable from configuration file. BOOTMODE = "xen" This u-boot script also supports to configure below Xen params from configuration file params variable assignment ------ ------------------- duart XEN_SERIAL_CONSOLES = "serial0" dom0_mem DOM0_MEM = "1500M" dom0_max_vcpus DOM0_MAX_VCPUS = "1" extra params XEN_CMDLINE_APPEND = "loglvl=all" Signed-off-by: Sandeep Gundlupet Raju <[email protected]> --- .../u-boot/u-boot-xlnx-scr.bbappend | 2 + .../u-boot/u-boot-xlnx-scr/boot.cmd.xen | 80 +++++++++++++++++++ .../recipes-bsp/u-boot/xen-boot-cmd.inc | 38 +++++++++ 3 files changed, 120 insertions(+) create mode 100644 dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr.bbappend create mode 100644 dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr/boot.cmd.xen create mode 100644 dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc diff --git a/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr.bbappend b/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr.bbappend new file mode 100644 index 0000000..ae847cb --- /dev/null +++ b/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr.bbappend @@ -0,0 +1,2 @@ +# Include xen-boot-cmd.inc only if xen distro features is enabled. +include ${@bb.utils.contains('DISTRO_FEATURES', 'xen', 'xen-boot-cmd.inc', '', d)} diff --git a/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr/boot.cmd.xen b/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr/boot.cmd.xen new file mode 100644 index 0000000..25e5842 --- /dev/null +++ b/dynamic-layers/xilinx/recipes-bsp/u-boot/u-boot-xlnx-scr/boot.cmd.xen @@ -0,0 +1,80 @@ +# This is a boot script for U-Boot with Xen parameters used by yocto machine +# configuration file. +# Generate boot.scr: +# mkimage -c none -A arm -T script -d boot.cmd.xen boot.scr +# +################ +xen_name=@@XEN_IMAGE_NAME@@ +kernel_name=@@KERNEL_IMAGE@@ +rootfs_name=@@RAMDISK_IMAGE@@ +@@PRE_BOOTENV@@ + +for boot_target in ${boot_targets}; +do + echo "Trying to load boot images from ${boot_target}" + if test "${boot_target}" = "jtag" ; then + tftpboot @@KERNEL_LOAD_ADDRESS@@ ${kernel_name} + setenv kernel_size 0x$filesize; + tftpboot @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name} + setenv ramdisk_size 0x$filesize; + tftpboot @@XEN_LOAD_ADDRESS@@ ${xen_name} + tftpboot @@DEVICETREE_ADDRESS@@ system.dtb + fi + if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1" || test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then + if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1"; then + setenv bootdev mmcblk${devnum}p + fi + if test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then + setenv bootdev sda + fi + echo "Checking for /${xen_name}" + if test -e ${devtype} ${devnum}:${distro_bootpart} /${xen_name}; then + echo "Loading ${xen_name}"; + fatload ${devtype} ${devnum}:${distro_bootpart} @@XEN_LOAD_ADDRESS@@ ${xen_name}; + fi + echo "Checking for /${kernel_name}" + if test -e ${devtype} ${devnum}:${distro_bootpart} /${kernel_name}; then + echo "Loading ${kernel_name}"; + fatload ${devtype} ${devnum}:${distro_bootpart} @@KERNEL_LOAD_ADDRESS@@ ${kernel_name}; + setenv kernel_size 0x$filesize; + fi + echo "Checking for /system.dtb" + if test -e ${devtype} ${devnum}:${distro_bootpart} /system.dtb; then + echo "Loading system.dtb"; + fatload ${devtype} ${devnum}:${distro_bootpart} @@DEVICETREE_ADDRESS@@ system.dtb; + fi + echo "Checking for /${rootfs_name}" + if test -e ${devtype} ${devnum}:${distro_bootpart} /${rootfs_name} && test "${skip_ramdisk}" != "yes"; then + echo "Loading ${rootfs_name}"; + fatload ${devtype} ${devnum}:${distro_bootpart} @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name}; + setenv ramdisk_size 0x$filesize; + fi + fi + fdt addr @@DEVICETREE_ADDRESS@@ + fdt resize 0x1000 + fdt get value bootargs /chosen bootargs + fdt set /chosen \#address-cells <0x2> + fdt set /chosen \#size-cells <0x2> + setenv xen_bootargs "console=dtuart dtuart=@@XEN_SERIAL_CONSOLES@@ dom0_mem=@@DOM0_MEM@@ dom0_max_vcpus=@@DOM0_MAX_VCPUS@@ bootscrub=0 vwfi=native @@XEN_CMDLINE_APPEND@@" + fdt set /chosen xen,xen-bootargs \"${xen_bootargs}\" + + # Check that env $ramdisk_size is 0 or not. + if test -n ${ramdisk_size}; then + fdt mknod /chosen dom0-ramdisk + fdt set /chosen/dom0-ramdisk compatible "xen,linux-initrd" "xen,multiboot-module" "multiboot,module" + fdt set /chosen/dom0-ramdisk reg <0x0 @@RAMDISK_IMAGE_ADDRESS@@ 0x0 ${ramdisk_size}> + setenv rootfs_param @@KERNEL_ROOT_RAMDISK@@ + else + setenv rootfs_param @@KERNEL_ROOT_SD@@ + fi + + fdt mknod /chosen dom0 + fdt set /chosen/dom0 compatible "xen,linux-zimage" "xen,multiboot-module" "multiboot,module" + fdt set /chosen/dom0 reg <0x0 @@KERNEL_LOAD_ADDRESS@@ 0x0 ${kernel_size}> + setenv dom0_bootargs "console=hvc0 earlycon=xen earlyprintk=xen clk_ignore_unused ${rootfs_param}" + fdt set /chosen xen,dom0-bootargs \"${dom0_bootargs}\" + + setenv fdt_high 0xffffffffffffffff + + @@KERNEL_BOOTCMD@@ @@XEN_LOAD_ADDRESS@@ - @@DEVICETREE_ADDRESS@@ +done diff --git a/dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc b/dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc new file mode 100644 index 0000000..38f6f26 --- /dev/null +++ b/dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc @@ -0,0 +1,38 @@ +FILESEXTRAPATHS:append := ":${THISDIR}/u-boot-xlnx-scr" + +SRC_URI += "file://boot.cmd.xen" + +# Image offsets for Xen boot +KERNEL_OFFSET:zynqmp ?= "0xE00000" +KERNEL_OFFSET:versal ?= "0xE00000" + +DEVICETREE_OFFSET:zynqmp ?= "0xC000000" +DEVICETREE_OFFSET:versal ?= "0xC000000" + +RAMDISK_OFFSET:zynqmp ?= "0x2400000" +RAMDISK_OFFSET:versal ?= "0x2400000" + +XEN_OFFSET:zynqmp ?= "0xBA00000" +XEN_OFFSET:versal ?= "0xBA00000" +XEN_LOAD_ADDRESS ?= "${@append_baseaddr(d,d.getVar('XEN_OFFSET'))}" + +# If dom0-ramdisk is used for Xen boot then set RAMDISK image to cpio.gz +XEN_IMAGE_NAME ?= "xen" +RAMDISK_IMAGE = "rootfs.cpio.gz" + +# Set the amount of memory for dom0 depending on total available memory size(DDR). +DOM0_MEM ?= "1500M" + +# Specify which UART console Xen should use. You can sepecify the devicetree +# alias or full path to a node in the devicetree +# XEN_SERIAL_CONSOLES ?= "serial0" or XEN_SERIAL_CONSOLES ?= "/axi/serial@ff000000" +XEN_SERIAL_CONSOLES ?= "serial0" + +# Specify additional Xen paramaters which will be appended to xen-bootargs +# This can alos be used for debugging purposes. +# Examples: XEN_CMDLINE_APPEND ?= "sched=credit loglvl=all guest_loglvl=debug" +XEN_CMDLINE_APPEND ?= "" + +# Specify the max number of vcpus for dom0 +# Example usage: DOM0_MAX_VCPUS = "2" or DOM0_MAX_VCPUS = "2-4" +DOM0_MAX_VCPUS ?= "1" -- 2.34.1
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