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This allows loading modules with large memory requirements, recently needed
while testing on armvirt/32. Past forum discussions [1] and bug reports [2]
also raised this and the ipq806x target already set it in response [3].
Given this increases kernel image size by only ~1KB, is generally useful on
multi-platform kernels, and enabled by default on upstream arm32 Linux, add
it to the generic config.
The setting has similar utility on arm64, is a requirement for KASLR, and
already enabled on most OpenWrt aarch64 targets, so pull this into the
top-level generic config.
[1]: https://forum.openwrt.org/t/vmap-allocation-for-size-442368-failed-use-vmalloc-size-to-increase-size/34545/7
[2]: https://github.com/openwrt/openwrt/issues/8282
[3]:
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.. | ||
32 | ||
64 | ||
base-files/etc | ||
image | ||
config-5.15 | ||
Makefile | ||
README |
This is intended to be used with OpenWrt 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 \