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Code Issues
0aedf5cfcb
openwrt/target/linux/armvirt
History
Yousong Zhou 0aedf5cfcb armvirt: 32: refresh kernel config 
The diff was genereated by running the following command without
actually changing any kernel config options

	make kernel_menuconfig CONFIG_TARGET=subtarget

Here are some initial findings on the change

 - CONFIG_ARCH_OPTIONAL_KERNEL_RWX is now arch default
 - CONFIG_ARM_GIC_V3_ITS is selected by CONFIG_ARCH_VIRT
 - CONFIG_CPU_SPECTRE is select by CONFIG_CPU_V7
 - CONFIG_TIMER_OF is now a arch default
 - CONFIG_TIMER_PROBE is select by CONFIG_TIMER_OF

The following options should probably be moved to generic config

 - CONFIG_MIGRATION is a default on option
 - CONFIG_TREE_SRCU is a default on option for !PREEMPT && SMP system
 - CONFIG_RCU_NEED_SEGCBLIST

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2019-02-19 13:13:48 +00:00
..
32 armvirt: 32: refresh kernel config 2019-02-19 13:13:48 +00:00
64 kernel: add missing ARM64_SSBD symbol 2018-07-31 12:22:11 +03:00
base-files/etc
image armvirt: merge arm64 as subtarget 64 2017-04-23 09:19:33 +08:00
config-4.14 kernel: enable memory compaction 2018-10-09 14:29:55 +02:00
Makefile armvirt: bump to v4.14 2018-01-09 14:40:54 +01:00
README merge: targets: update image generation and targets 2017-12-08 19:41:18 +01:00

README 

This is intended to be used with LEDE project to provide image for use with
QEMU ARM virt machine.

Run with qemu-system-arm

	# boot with initramfs embedded in
	qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage-initramfs

	# boot with accel=kvm
	qemu-system-arm -nographic -M virt,accel=kvm -cpu host -m 64 -kernel
	openwrt-armvirt-32-zImage-initramfs

	# boot with a separate rootfs
	qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage \
	  -drive file=openwrt-armvirt-32-root.ext4,format=raw,if=virtio -append 'root=/dev/vda rootwait'

	# boot with local dir as rootfs
	qemu-system-arm -nographic -M virt -m 64 -kernel openwrt-armvirt-32-zImage \
	  -fsdev local,id=rootdev,path=root-armvirt/,security_model=none \
	  -device virtio-9p-pci,fsdev=rootdev,mount_tag=/dev/root \
	  -append 'rootflags=trans=virtio,version=9p2000.L,cache=loose rootfstype=9p'

Run with kvmtool

	# start a named machine
	lkvm run -k openwrt-armvirt-32-zImage -i openwrt-armvirt-32-rootfs.cpio --name armvirt0

	# start with virtio-9p rootfs
	lkvm run -k openwrt-armvirt-32-zImage -d root-armvirt/

	# stop "armvirt0"
	lkvm stop --name armvirt0

	# stop all
	lkvm stop --all

The multi-platform ARMv8 target can be used with QEMU:

	qemu-system-aarch64 -machine virt -cpu cortex-a57 -nographic \
		-kernel openwrt-armvirt-64-Image-initramfs \