On Thu, 7 Aug 2025 at 11:14, Manos Pitsidianakis <manos.pitsidiana...@linaro.org> wrote: > > NVDIMM is used for fast rootfs with EROFS, for example by kata > containers. To allow booting with static NVDIMM memory, add them to the > device tree in arm virt machine. > > This allows users to boot directly with nvdimm memory devices without > having to rely on ACPI and hotplug. > > Verified to work with command invocation: > > ./qemu-system-aarch64 \ > -M virt,nvdimm=on \ > -cpu cortex-a57 \ > -m 4G,slots=2,maxmem=8G \ > -object > memory-backend-file,id=mem1,share=on,mem-path=/tmp/nvdimm,size=4G,readonly=off > \ > -device nvdimm,id=nvdimm1,memdev=mem1,unarmed=off \ > -drive file=./debian-12-nocloud-arm64-commited.qcow2,format=qcow2 \ > -kernel ./vmlinuz-6.1.0-13-arm64 \ > -append "root=/dev/vda1 console=ttyAMA0,115200 acpi=off" > -initrd ./initrd.img-6.1.0-13-arm64 \ > -nographic \ > -serial mon:stdio > > Signed-off-by: Manos Pitsidianakis <manos.pitsidiana...@linaro.org> > --- > Changes in v2: > - Reduce ret value lines in fdt_add_pmem_node() (thanks Jonathan Cameron!) > - Link to v1: > https://lore.kernel.org/qemu-devel/20250730-nvdimm_arm64_virt-v1-1-f843596ab...@linaro.org > ---
Applied to target-arm.next, thanks. -- PMM
