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recipes-bsp: Add u-boot-xlnx scripts for Xen support
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 <sandeep.gundlupet-raju@amd.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This commit is contained in:
Sandeep Gundlupet Raju
Bruce Ashfield
parent
c9b65ee0e5
commit
7332b59472
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# Include xen-boot-cmd.inc only if xen distro features is enabled.
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include ${@bb.utils.contains('DISTRO_FEATURES', 'xen', 'xen-boot-cmd.inc', '', d)}
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# This is a boot script for U-Boot with Xen parameters used by yocto machine
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# configuration file.
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# Generate boot.scr:
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# mkimage -c none -A arm -T script -d boot.cmd.xen boot.scr
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#
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################
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xen_name=@@XEN_IMAGE_NAME@@
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kernel_name=@@KERNEL_IMAGE@@
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rootfs_name=@@RAMDISK_IMAGE@@
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@@PRE_BOOTENV@@
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for boot_target in ${boot_targets};
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do
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echo "Trying to load boot images from ${boot_target}"
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if test "${boot_target}" = "jtag" ; then
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tftpboot @@KERNEL_LOAD_ADDRESS@@ ${kernel_name}
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setenv kernel_size 0x$filesize;
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tftpboot @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name}
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setenv ramdisk_size 0x$filesize;
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tftpboot @@XEN_LOAD_ADDRESS@@ ${xen_name}
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tftpboot @@DEVICETREE_ADDRESS@@ system.dtb
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fi
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if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1" || test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then
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if test "${boot_target}" = "mmc0" || test "${boot_target}" = "mmc1"; then
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setenv bootdev mmcblk${devnum}p
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fi
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if test "${boot_target}" = "usb0" || test "${boot_target}" = "usb1"; then
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setenv bootdev sda
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fi
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echo "Checking for /${xen_name}"
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if test -e ${devtype} ${devnum}:${distro_bootpart} /${xen_name}; then
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echo "Loading ${xen_name}";
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fatload ${devtype} ${devnum}:${distro_bootpart} @@XEN_LOAD_ADDRESS@@ ${xen_name};
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fi
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echo "Checking for /${kernel_name}"
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if test -e ${devtype} ${devnum}:${distro_bootpart} /${kernel_name}; then
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echo "Loading ${kernel_name}";
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fatload ${devtype} ${devnum}:${distro_bootpart} @@KERNEL_LOAD_ADDRESS@@ ${kernel_name};
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setenv kernel_size 0x$filesize;
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fi
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echo "Checking for /system.dtb"
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if test -e ${devtype} ${devnum}:${distro_bootpart} /system.dtb; then
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echo "Loading system.dtb";
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fatload ${devtype} ${devnum}:${distro_bootpart} @@DEVICETREE_ADDRESS@@ system.dtb;
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fi
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echo "Checking for /${rootfs_name}"
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if test -e ${devtype} ${devnum}:${distro_bootpart} /${rootfs_name} && test "${skip_ramdisk}" != "yes"; then
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echo "Loading ${rootfs_name}";
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fatload ${devtype} ${devnum}:${distro_bootpart} @@RAMDISK_IMAGE_ADDRESS@@ ${rootfs_name};
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setenv ramdisk_size 0x$filesize;
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fi
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fi
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fdt addr @@DEVICETREE_ADDRESS@@
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fdt resize 0x1000
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fdt get value bootargs /chosen bootargs
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fdt set /chosen \#address-cells <0x2>
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fdt set /chosen \#size-cells <0x2>
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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@@"
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fdt set /chosen xen,xen-bootargs \"${xen_bootargs}\"
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# Check that env $ramdisk_size is 0 or not.
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if test -n ${ramdisk_size}; then
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fdt mknod /chosen dom0-ramdisk
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fdt set /chosen/dom0-ramdisk compatible "xen,linux-initrd" "xen,multiboot-module" "multiboot,module"
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fdt set /chosen/dom0-ramdisk reg <0x0 @@RAMDISK_IMAGE_ADDRESS@@ 0x0 ${ramdisk_size}>
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setenv rootfs_param @@KERNEL_ROOT_RAMDISK@@
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else
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setenv rootfs_param @@KERNEL_ROOT_SD@@
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fi
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fdt mknod /chosen dom0
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fdt set /chosen/dom0 compatible "xen,linux-zimage" "xen,multiboot-module" "multiboot,module"
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fdt set /chosen/dom0 reg <0x0 @@KERNEL_LOAD_ADDRESS@@ 0x0 ${kernel_size}>
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setenv dom0_bootargs "console=hvc0 earlycon=xen earlyprintk=xen clk_ignore_unused ${rootfs_param}"
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fdt set /chosen xen,dom0-bootargs \"${dom0_bootargs}\"
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setenv fdt_high 0xffffffffffffffff
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@@KERNEL_BOOTCMD@@ @@XEN_LOAD_ADDRESS@@ - @@DEVICETREE_ADDRESS@@
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done
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38
dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc
Normal file
38
dynamic-layers/xilinx/recipes-bsp/u-boot/xen-boot-cmd.inc
Normal file
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FILESEXTRAPATHS:append := ":${THISDIR}/u-boot-xlnx-scr"
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SRC_URI += "file://boot.cmd.xen"
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# Image offsets for Xen boot
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KERNEL_OFFSET:zynqmp ?= "0xE00000"
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KERNEL_OFFSET:versal ?= "0xE00000"
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DEVICETREE_OFFSET:zynqmp ?= "0xC000000"
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DEVICETREE_OFFSET:versal ?= "0xC000000"
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RAMDISK_OFFSET:zynqmp ?= "0x2400000"
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RAMDISK_OFFSET:versal ?= "0x2400000"
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XEN_OFFSET:zynqmp ?= "0xBA00000"
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XEN_OFFSET:versal ?= "0xBA00000"
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XEN_LOAD_ADDRESS ?= "${@append_baseaddr(d,d.getVar('XEN_OFFSET'))}"
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# If dom0-ramdisk is used for Xen boot then set RAMDISK image to cpio.gz
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XEN_IMAGE_NAME ?= "xen"
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RAMDISK_IMAGE = "rootfs.cpio.gz"
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# Set the amount of memory for dom0 depending on total available memory size(DDR).
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DOM0_MEM ?= "1500M"
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# Specify which UART console Xen should use. You can sepecify the devicetree
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# alias or full path to a node in the devicetree
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# XEN_SERIAL_CONSOLES ?= "serial0" or XEN_SERIAL_CONSOLES ?= "/axi/serial@ff000000"
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XEN_SERIAL_CONSOLES ?= "serial0"
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# Specify additional Xen paramaters which will be appended to xen-bootargs
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# This can alos be used for debugging purposes.
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# Examples: XEN_CMDLINE_APPEND ?= "sched=credit loglvl=all guest_loglvl=debug"
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XEN_CMDLINE_APPEND ?= ""
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# Specify the max number of vcpus for dom0
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# Example usage: DOM0_MAX_VCPUS = "2" or DOM0_MAX_VCPUS = "2-4"
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DOM0_MAX_VCPUS ?= "1"
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