Add a new bbclass for xen launch config variables. This bbclass provides common xen launch config variables which can be inherited by any vendor specific u-boot boot script and non-u-boot recipes. Also these variable are configurable from recipes, global and machine configuration files.
Variable nomenclature is aligned with xen documentation. https://xenbits.xen.org/docs/unstable/misc/xen-command-line.html Currently it supports Xen Dom0 boot and can be extended for DomU or Dom0less boot. Signed-off-by: Sandeep Gundlupet Raju <[email protected]> --- classes-recipe/xen-launch-config.bbclass | 43 ++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 classes-recipe/xen-launch-config.bbclass diff --git a/classes-recipe/xen-launch-config.bbclass b/classes-recipe/xen-launch-config.bbclass new file mode 100644 index 00000000..df8287e1 --- /dev/null +++ b/classes-recipe/xen-launch-config.bbclass @@ -0,0 +1,43 @@ +# Copyright (C) 2024, Advanced Micro Devices, Inc. All rights reserved. +# +# SPDX-License-Identifier: MIT +# +# This bbclass defines u-boot script variables required for xen boot which can be +# inherited u-boot boot scripts recipes and also allows to configure these variables +# from recipes, global and machine configurations files. + +# Variable nomenclature is aligned with +# https://xenbits.xen.org/docs/unstable/misc/xen-command-line.html + +# Image Load Address for Xen Dom0 boot +KERNEL_LOAD_ADDRESS ??= "0x00400000" +XEN_LOAD_ADDRESS ??= "0x00200000" +DEVICETREE_LOAD_ADDRESS ??= "0xC000000" +RAMDISK_LOAD_ADDRESS ??= "0x2600000" + +# Xen boot image types. +# KERNEL_IMAGETYPE: Specifies DomU kernel image file to be loaded by u-boot. +# XEN_IMAGETYPE: Specifies xen hypervisor binary to be loaded by u-boot. +# Example: xen or xen.efi or xen.gz +# DOM0_RAMDISK_IMAGETYPE: Specifies DOM0 ramdisk to be used, Example: cpio.gz +XEN_IMAGETYPE ??= "xen" +DOM0_RAMDISK_IMAGETYPE ??= "rootfs.cpio.gz" + +# Set the amount of memory for dom0 depending on total available memory size(DDR). +DOM0_MEM ??= "256M" + +# 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 = "/soc/serial@7e215040" or +# XEN_SERIAL_CONSOLES = "serial0" or +# XEN_SERIAL_CONSOLES = "/axi/serial@ff000000" +XEN_SERIAL_CONSOLES ??= "/soc/serial@7e215040" + +# Specify additional command line arguments used for Xen and this will be appended +# to xen-bootargs cariable. This can also be used for passing debug cmd line arguments. +# Examples: XEN_CMDLINE_APPEND ?= "sched=credit loglvl=all guest_loglvl=debug" +XEN_CMDLINE_APPEND ??= "sync_console bootscrub=0" + +# 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
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#9029): https://lists.yoctoproject.org/g/meta-virtualization/message/9029 Mute This Topic: https://lists.yoctoproject.org/mt/109841158/21656 Group Owner: [email protected] Unsubscribe: https://lists.yoctoproject.org/g/meta-virtualization/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
